500 (number)

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• an Italian car, the Fiat 500
  Fiat 500
  
  The Fiat 500 is a automobile produced by the Fiat company of Italy between 1957 and 1975 . It was designed by Dante Giacosa.Launched as the Nuova 500, it was marketed as a cheap and practical town car....
  
• many NASCAR
  NASCAR
  
  The National Association for Stock Car Auto Racing is the largest sanctioning body of stock cars in the United States. The three largest racing series sanctioned by NASCAR are the Sprint Cup Series, the Nationwide Series and the Camping World Truck Series....
   races often use the number 500 at the end of their race names (i.e. Daytona 500
  Daytona 500
  
  The Daytona 500 is a 200-lap, -long NASCAR Sprint Cup Series race held annually at the Daytona International Speedway in Daytona Beach, Florida....
  ), to denote the length of the race (in mile
  Mile
  
  A mile is a Units of measurement of length, usually used to measure distance, in a number of different systems. In contemporary English contexts, mile most commonly refers to the statute mile of 5,280 Feet or the nautical mile of 1,852 meters ....
  s, kilometers or laps).
• the longest advertised distance of the IndyCar Series
  Indy Racing League
  
  The Indy Racing League, better known as IRL, is the sanctioning body of a predominantly American based open-wheel Auto racing.The League sanctions two series, the premier IndyCar Series , whose centerpiece is the Indianapolis 500, and Firestone Indy Lights, the official developmental series of the Indy Racing League....
   and its premier race, the Indianapolis 500
  Indianapolis 500
  
  The Indianapolis 500-Mile Race, often shortened to Indianapolis 500 or Indy 500 or commonly known simply as The 500, is an USA automobile auto racing, held annually over the Memorial Day weekend at the Indianapolis Motor Speedway in Speedway, Indiana....
  .
• a car in the United States, the Ford Five Hundred
  Ford Five Hundred
  
  The Ford Five Hundred is a full-size sedan that was produced by the Ford Motor Company during the 2005 to 2007 model years in North America. In North America, the name evoked the classic Ford Fairlane and Ford Galaxie models of the 1950s through 1970s....
   (and various other cars throughout Ford's history, including the Galaxie 500
  Ford Galaxie
  
  The Ford Galaxie was a Ford full-size built in the United States by the Ford Motor Company for model years 1959 through 1974. The name was used for the top models in Ford?s full-size range from 1959 until 1966....
   and Custom 500
  Ford Custom 500
  
  The Ford Custom 500 is a car model name that was used by the Ford Motor Company both in the United States and Canada from 1964 to 1978. It usually came equipped with a small block V8 engine ....
  ).
• a name of two different card games, see 500 (card game)
  500 (card game)
  
  This article is about the trick-taking game. For the variant of Rummy, see 500 Rum.500 is a trick-taking game based on Euchre. The game was invented and copyrighted by the United States Playing Card Company in 1904....
   for the trick taking game and 500 Rum
  500 Rum
  
  500 Rum, also called Pinochle Rummy, Michigan Rummy, or 500 Rummy, is a popular variant of rummy. The game of Canasta and several other games developed from this popular form of rummy....
   for the rummy game.
• an outdoor ball/disc game, see 500 (outdoor game)
  500 (outdoor game)
  
  500 is a competitive, outdoor game for 3+ people that is typically played with a baseball, football, or flying disc. One person is designated as the thrower, and stands a good distance away from the rest of the group....
  
• an HTTP status code for Internal Server Error
• an SMTP
  Simple Mail Transfer Protocol
  
  Simple Mail Transfer Protocol is an Internet standard for E-mail transmission across Internet Protocol networks. SMTP was first defined in RFC 821 , and last updated by RFC 5321 , which describes the protocol in widespread use today, also known as extended SMTP ....
   status code meaning a syntax error has occurred due to unrecognized command
• the years AD 500
  500
  
  Events...
  , 500 BC.
• the winning permillage
  Permille
  
  A per mil or per mille is a tenth of a percent or one part per thousand. It is written with the sign ? ., which looks like a percent sign with an extra zero at the end....
   of a sports team with equal numbers of wins and losses. Such teams are often referred to as "500 teams".

Numbers from 501-599

• 5-1-1
  5-1-1
  
  5-1-1, initially designated for road weather information, is a transportation and traffic information telephone hotline in some regions of the United States....
  , a roadway status and transit
  Transit
  
  Transit may refer to:...
   information hotline
  Hotline
  
  In telecommunication, a hotline is a Point-to-point information transfer Data link in which a call is automatically directed to the preselected destination without any additional action by the User when the end instrument goes off-hook....
   in many metropolitan areas of the United States
  United States
  
  The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
  .512 = 2⁹, power of two
  Power of two
  
  In mathematics, a power of two is any of the integer exponentiation of the number 2 ; in other words, two multiplication by itself a certain number of times....
  , cube of 8
  8 (number)
  
  8 is the natural number, following 7 and preceding 9 . The SI prefix for 10008 is yotta , and for its reciprocal yocto . It is the root of two other numbers: eighteen and eighty ....
  , Leyland number
  Leyland number
  
  In number theory, a Leyland number is a number of the form x'y + y'x, where x and y are integers greater than 1....
  , Dudeney number
  Dudeney number
  
  A Dudeney number is a positive integer that is a perfect cube such that the sum of its decimal digits is the cube root of the number. The name derives from Henry Dudeney, who noted the existence of these numbers in one of his puzzles, Root Extraction, where a professor in retirement at Colney Hatch postulates this as a general method for...
  , Harshad number
  Harshad number
  
  A Harshad number, or Niven number in a given numeral system, is an integer that is divisible by the digit sum when written in that base....
  513 = 3³ × 19, Harshad number514 = 2 × 257, centered triangular number
  Centered triangular number
  
  A centered triangular number is a centered number figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers....
  , nontotient515 = 5 × 103, sum of nine consecutive primes (41 + 43 + 47 + 53 + 59 + 61 + 67 + 71 + 73)516 = 2² × 3 × 43, nontotient, untouchable number
  Untouchable number
  
  An untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer .For example, the number 4 is not untouchable as it can be made up of the sum of the proper divisors of 9, i.e....
  , refactorable number, Harshad number517 = 11 × 47, sum of five consecutive primes (97 + 101 + 103 + 107 + 109), Smith number
  Smith number
  
  A Smith number is a composite number for which, in a given radix, the digit sum is equal to the sum of the digits in its prime factor. . For example, 378 = 2 ? 3 ? 3 ? 3 ? 7 is a base 10 Smith number, since 3 + 7 + 8 = 2 + 3 + 3 + 3 + 7....
  518 = 2 × 7 × 37 = 5¹ + 1² + 8³ (a property shared with 175
  175 (number)
  
  175 is the natural number following 174 and preceding 176 . It is a decagonal number.175 is the magic constant of the n×n normal magic square and Eight queens puzzle for n = 7....
   and 598), sphenic number, nontotient, untouchable number, Harshad number519 = 3 × 173, sum of three consecutive primes (167 + 173 + 179)520 = 2³ × 5 × 13, untouchable number521 Lucas prime, Chen prime, Eisenstein prime with no imaginary part522 = 2 × 3² × 29, sum of six consecutive primes (73 + 79 + 83 + 89 + 97 + 101), Harshad number523 prime number, sum of seven consecutive primes (61 + 67 + 71 + 73 + 79 + 83 + 89)524 = 2² × 131525 = 3 × 5² × 7526 = 2 × 263, centered pentagonal number
  Centered pentagonal number
  
  A centered pentagonal number is a centered polygonal number figurate number that represents a pentagon with a dot in the center and all other dots surrounding the center in successive pentagonal layers....
  , nontotient, Smith number527 = 17 × 31, also the section of the US Tax Code regulating soft money political campaigning (see 527 group
  527 group
  
  A 527 group is a type of American tax-exempt organization named after a section of the United States Internal Revenue Code, . A 527 group is created primarily to influence the nomination, election, appointment or defeat of candidates for public office....
  s)528 = 2⁴ × 3 × 11, triangular number
  Triangular number
  
  A triangular number is the number of dots in an equilateral triangle evenly filled with dots. For example, three dots can be arranged in a triangle; thus three is a triangle number....
  529 = 23², centered octagonal number
  Centered octagonal number
  
  A centered octagonal number is a centered number figurate number that represents an octagon with a dot in the center and all other dots surrounding the center dot in successive octagonal layers....
  , also Section 529 of the IRS tax code organizes 529 plan
  529 plan
  
  A 529 plan is a Tax advantage investment vehicle in the United States designed to encourage saving for the future higher education expenses of a designated beneficiary....
  s to encourage saving for higher education.530 = 2 × 5 × 53, sphenic number, nontotient, sum of totient function for first 41 integers, untouchable number531 = 3² × 59, Harshad number532 = 2² × 7 × 19, nontotient533 = 13 × 41, sum of three consecutive primes (173 + 179 + 181), sum of five consecutive primes (101 + 103 + 107 + 109 + 113)534 = 2 × 3 × 89, sphenic number, sum of four consecutive primes (127 + 131 + 137 + 139), nontotient535 = 5 × 107, Smith number536 = 2³ × 67, the number of ways to arrange the pieces of the stomachion puzzle into a square, not counting rotation or reflection, refactorable number537 = 3 × 179, Mertens function
  Mertens function
  
  In number theory, the Mertens function iswhere ? is the M?bius function. The function is named in honour of Franz Mertens.Less formally, M is the count of square-free integers up to n that have an even number of prime factors, minus the count of those that have an odd number....
  (537) = 0538 = 2 × 269, open meandric number, nontotient; also, the total number of votes in the Electoral College of the United States539 = 7² × 11540 = 2² × 3³ × 5, untouchable number, decagonal number
  Decagonal number
  
  A decagonal number is a figurate number that represents a decagon. The decagonal number for is given by the formulawith . The first few decagonal numbers are...
  , Harshad number541 lucky prime, Chen prime, Mertens function(541) = 0, star number
  Star number
  
  A star number is a centered number figurate number that represents a centered hexagram, such as the one that Chinese checkers is played on.The nth star number is given by the formula 6n + 1....
  542 = 2 × 271, nontotient, sum of totient function for first 42 integers543 = 3 × 181544 = 2⁵ × 17545 = 5 × 109, centered square number
  Centered square number
  
  In elementary number theory, a centered square number is a centered polygonal number figurate number that gives the number of dots in a Square with a dot in the center and all other dots surrounding the center dot in successive square layers....
  546 = 2 × 3 × 7 × 13, sum of eight consecutive primes (53 + 59 + 61 + 67 + 71 + 73 + 79 + 83)547 prime number, cuban prime
  Cuban prime
  
  A cuban prime is a prime number that is a solution to one of two different specific equations involving third powers of x and y. The first of these equations is:...
  , centered hexagonal number
  Centered hexagonal number
  
  A centered hexagonal number, or hex number, is a centered polygonal number figurate number that represents a hexagon with a dot in the center and all other dots surrounding the center dot in a hexagonal lattice....
  , centered heptagonal number
  Centered heptagonal number
  
  A centered heptagonal number is a centered number figurate number that represents a heptagon with a dot in the center and all other dots surrounding the center dot in successive heptagonal layers....
  548 = 2² × 137, nontotient, every positive integer is the sum of at most 548 ninth powers; also the default port for the Apple_Filing_Protocol
  Apple Filing Protocol
  
  The Apple Filing Protocol is a Communications protocol that offers file services for Mac OS X and original Mac OS. In Mac OS X, AFP is one of several file services supported including Server Message Block , Network File System , File Transfer Protocol , and WebDAV....
  549 = 3² × 61550 = 2 × 5² × 11, pentagonal pyramidal number
  Pentagonal pyramidal number
  
  A pentagonal pyramidal number is a figurate number that represents the number of objects in a pyramid with a pentagonal base. The nth pentagonal pyramidal number is equal to the sum of the first n pentagonal numbers....
  , nontotient, Harshad number, also SMTP status code meaning the requested action was not taken because the mailbox is unavailable551 = 19 × 29, sum of three consecutive primes (179 + 181 + 191), SMTP status code meaning user is not local552 = 2³ × 3 × 23, sum of six consecutive primes (79 + 83 + 89 + 97 + 101 + 103), sum of ten consecutive primes (37 + 43 + 47 + 53 + 59 + 61 + 67 + 71 + 73), pronic number, untouchable number, Harshad number; model number of Unterseeboot 552
  Unterseeboot 552
  
  Unterseeboot 552 was a Nazi Germany German Type VII submarine#Type VIIC U-Boat . She was laid down on 1 December 1939 at Blohm & Voss in Hamburg and went into service on 4 December 1940....
  , SMTP status code meaning requested action aborted because the mailbox is full553 = 7 × 79, sum of nine consecutive primes (43 + 47 + 53 + 59 + 61 + 67 + 71 + 73 + 79); model number of Unterseeboot 553
  Unterseeboot 553
  
  Unterseeboot 553 was a Type VII U-boat submarine of the Kriegsmarine. Her keel was laid down 21 November 1939, by Blohm & Voss of Hamburg. She was commissioned 23 December 1940, with Kapit?nleutnant Karl Thurmann in command....
  , SMTP status code meaning requested action aborted because of faulty mailbox name554 = 2 × 277, Mertens function(554) = 6 a record high that stands until 586, nontotient, also SMTP status code meaning transaction failed555
  555 (number)
  
  555 is the natural number following 554 and preceding 556 ....
   is a sphenic number
  Sphenic number
  
  In mathematics, a sphenic number is a natural number which is the product of three distinct prime numbers.Note that this definition is more stringent than simply requiring the integer to have exactly three prime factors; e.g....
  , a repdigit
  Repdigit
  
  In recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal.Examples are 11 , 666 , 4444, 77777, and Feynman point....
   and a Harshad number
  Harshad number
  
  A Harshad number, or Niven number in a given numeral system, is an integer that is divisible by the digit sum when written in that base....
  

• The telephone exchange for fictitious phone numbers in US movie
  Film
  
  Film encompasses individual motion pictures, the field of film as an art form, and the film industry. Films are produced by recording images from the world with cameras, or by creating images using animation techniques or special effects....
  s - see 5-5-5
• The number of keyboard sonatas written by Domenico Scarlatti
  Domenico Scarlatti
  
  Giuseppe Domenico Scarlatti , son of the composer Alessandro Scarlatti, was an Italy composer who spent much of his life in Spain and Portugal....
  , according to the catalog by Ralph Kirkpatrick
  Ralph Kirkpatrick
  
  Ralph Kirkpatrick was a musician, musicologist and harpsichordist, born in Leominster, Massachusetts....
  .
• the model number of the 555 timer IC
  555 timer IC
  
  The 555 is an integrated circuit implementing a variety of timer and multivibrator applications. The IC was designed and invented by Hans R....
  , a classic integrated circuit
  Integrated circuit
  
  In electronics, an integrated circuit is a miniaturized electronic circuit that has been manufactured in the surface of a thin Wafer of semiconductor material....
   (chip) implementing a variety of timer
  Timer
  
  A timer is a specialized type of clock. A timer can be used to control the sequence of an event or process. Whereas a stopwatch counts upwards from zero for measuring elapsed time, a timer counts down from a specified time interval, like an hourglass....
   and multivibrator
  Multivibrator
  
  A multivibrator is an electronic circuit used to implement a variety of simple two-state systems such as oscillators, timers and flip-flop s. It is characterized by two amplifying devices cross-coupled by resistors and capacitors....
   applications, and historically widely used in electronics
  Electronics
  
  Electronics refers to the flow of charge through nonmetal electrical conductor , whereas electrical refers to the flow of charge through metal electrical conductor....
  .
• The number of seats of the airliner
  Airliner
  
  An airliner is a large fixed-wing aircraft with the primary function of transporting paying passengers and carrying cargo. Such planes are owned by airlines....
   A380-800
  Airbus A380
  
  The Airbus A380 is a Double-deck aircraft, wide-body, four-engine jet airliner manufactured by the European corporation Airbus, a subsidiary of EADS....
  .556 sum of four consecutive primes (131 + 137 + 139 + 149). But it is never the sum of the proper divisors of any integer, making it an untouchable number
  Untouchable number
  
  An untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer .For example, the number 4 is not untouchable as it can be made up of the sum of the proper divisors of 9, i.e....
  ; model number of Unterseeboot 556
  Unterseeboot 556
  
  U-556 or Unterseeboot 556 was a Germany German Type VIIC submarine submarine of the Kriegsmarine during World War II. Her keel was laid down on 2 January 1940 by Blohm & Voss of Hamburg....
  .557 prime number, Chen prime, Eisenstein prime with no imaginary part558 = 2 × 3² × 31, nontotient, Harshad number. The sum of the largest prime factors of the first 558 is itself divisible by 558 (the previous such number is 62, the next is 993). Also, 558 is in the title of the Star Trek: Deep Space Nine
  Star Trek: Deep Space Nine
  
  Star Trek: Deep Space Nine is a science fiction television program that premiered in 1993 and ran for seven seasons, ending in 1999. Rooted in Gene Roddenberry?s Star Trek universe, it was created by Rick Berman and Michael Piller, at the request of Brandon Tartikoff, and produced by CBS Paramount Television....
   episode "The Siege of AR-558
  The Siege of AR-558 (DS9 episode)
  
  The Siege of AR-558 is an episode from the seventh season of Star Trek: Deep Space Nine. The number 558 was probably chosen because it is the production code of the episode....
  "559 = 13 × 43, sum of five consecutive primes (103 + 107 + 109 + 113 + 127), sum of seven consecutive primes (67 + 71 + 73 + 79 + 83 + 89 + 97), nonagonal number
  Nonagonal number
  
  A nonagonal number or enneagonal number is a figurate number that represents a nonagon. The nonagonal number for n is given by the formula:...
  , centered cube number
  Centered cube number
  
  A centered cube number is a centered number figurate number that represents a cube. The centered cube number for n is given byThe first few centered cube numbers are...
  , model number of Unterseeboot 559
  Unterseeboot 559
  
  Unterseeboot 559 was a Type VII U-boat U-boat of the Kriegsmarine built in 1941 at the Blohm & Voss shipyards in Hamburg. She was most famous for an incident during her sinking in the Mediterranean Sea in 1942, in which Great Britain sailors seized cryptology material from U-559 without the German crew's knowledge....
  560 = 2⁴ × 5 × 7, tetrahedral number
  Tetrahedral number
  
  A tetrahedral number, or triangular pyramidal number, is a figurate number that represents a pyramid with a triangular base and three sides, called a tetrahedron....
  , refactorable number561 = 3 × 11 × 17, triangular number, hexagonal number
  Hexagonal number
  
  A hexagonal number is a figurate number, The nth hexagonal number will be the number of points in a hexagon with n regularly spaced points on a side, as shown in ....
  , the first Carmichael number
  Carmichael number
  
  In number theory, a Carmichael number is a composite number positive integer which satisfies the congruence for all integers which are relatively prime to ....
  562 = 2 × 281, Smith number, untouchable number563 103th prime number, safe prime, Wilson prime
  Wilson prime
  
  A Wilson prime is a prime number p such that p? divides ! + 1, where "!" denotes the factorial function; compare this with Wilson's theorem, which states that every prime p divides ! + 1....
  , Chen prime, Eisenstein prime with no imaginary part, balanced prime
  Balanced prime
  
  A balanced prime is a prime number that is equal to the arithmetic mean of the nearest primes above and below. Or to put it algebraically, given a prime number , where n is its index in the ordered set of prime numbers,...
  , strictly non-palindromic number, sexy prime
  Sexy prime
  
  In mathematics, a sexy prime is a pair of prime numbers that differ by six. For example, the numbers 5 and 11 are both prime numbers which together have a difference of 6....
  564 = 2² × 3 × 47, sum of a twin prime (281 + 283), refactorable number565 = 5 × 113, sum of three consecutive primes (181 + 191 + 193), member of the Mian-Chowla sequence566 = 2 × 283, nontotient567 = 3⁴ × 7568 = 2³ × 71, sum of the first nineteen primes, refactorable number, smallest number whose seventh power is the sum of 7 seventh powers569 prime number, Chen prime, Eisenstein prime with no imaginary part, strictly non-palindromic number570 = 2 × 3 × 5 × 19571 prime number, Chen prime, centered triangular number, model number of Unterseeboot 571
  Unterseeboot 571
  
  Unterseeboot 571 was a Type VII U-boat of the Kriegsmarine.Her keel was laid down June 8, 1940 by Blohm & Voss of Hamburg. She was commissioned May 22, 1941 with Kapit?nleutnant Helmut M?hlmann in command....
   which appeared in the 2000 movie U-571572 = 2² × 11 × 13, nontotient573 = 3 × 191, model number of Unterseeboot 573
  Unterseeboot 573
  
  Unterseeboot 573 was a Type VII U-boat submarine of the Kriegsmarine.Her keel was laid down June 8, 1940 by Blohm & Voss of Hamburg. She was commissioned on June 5, 1941 with Kapit?nleutnant Heinrich Heinsohn in command....
  , known as the Konami number
  Konami
  
  is a leading video game developer and video game publisher of numerous popular and strong-selling toys, trading cards, anime, tokusatsu, slot machines, Japanese arcade cabinetss and video games....
   because it is the number of steps in many of the hardest songs in the video game series Dance Dance Revolution
  Dance Dance Revolution
  
  Dance Dance Revolution, stylized DanceDanceRevolution, abbreviated DDR, and previously known as Dancing Stage in PAL territories until the announcement of Dance Dance Revolution X, is a long-standing music video game series produced by Konami....
  .574 = 2 × 7 × 41, sphenic number, nontotient575 = 5² × 23576 = 2⁶ × 3² = 24², sum of four consecutive primes (137 + 139 + 149 + 151), highly totient number
  Highly totient number
  
  A highly totient number k is an integer that has more solutions to the equation f = k, where f is Euler's totient function, than any integer below it....
  , Smith number, untouchable number, Harshad number. 576 is also four-dozen sets of a dozen, which makes it 4 gross.577 prime number, Proth prime578 = 2 × 17², nontotient579 = 3 × 193, a ménage number580 = 2² × 5 × 29, sum of six consecutive primes (83 + 89 + 97 + 101 + 103 + 107)581 = 7 × 83, sum of three consecutive primes (191 + 193 + 197)582 = 2 × 3 × 97, sphenic number, sum of eight consecutive primes (59 + 61 + 67 + 71 + 73 + 79 + 83 + 89), nontotient583 = 11 × 53584 = 2³ × 73, untouchable number, sum of totient function for first 43 integers, refactorable number585 = 3² × 5 × 13