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1000000000 (number)
 
 
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1,000,000,000 (one billion, short scale
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
) is the natural number
Natural number

In mathematics, a natural number can mean either an element of the Set = *n = = ? = ? ...
 following 999,999,999 and preceding 1,000,000,001.

In scientific notation
Scientific notation

Scientific notation, also known as standard form or as exponential notation, is a way of writing numbers that accommodates values too large or small to be conveniently written in standard decimal notation....
, it is written as 109.

In modern (short scale
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
) English language usage, it is usually called a billion (although in many other languages and long scale
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
 usage, a billion means a million millions, or 1,000,000,000,000, instead of a thousand millions).

In Indian English
Indian English

Indian English comprises several dialects or varieties of English language spoken primarily in India, and by first-generation members of the Non-resident Indian and Person of Indian Origin....
, it may be known as 100 crore
Crore

A crore is a unit in the Indian numbering system and was formerly a unit in the Persian numbering system, still widely used in Bangladesh, India, Maldives, Nepal, Pakistan, and Sri Lanka, and formerly in Iran....
.

The term milliard
Milliard

Milliard is a French language-derived numeral word meaning the number 1000000000 and which is used in France, Germany, the Scandinavian countries or the Netherlands....
 can also be used to refer to 1,000,000,000, though this terminology is rarely used in the English language, but often in other languages
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
.

Physical quantities can be expressed using the SI prefix
SI prefix

An SI prefix is a name or associated symbol that precedes a basic unit of measure to form a decimal multiple . The abbreviation SI is from the French language name Syst?me International d?Unit?s ....
 giga
Giga

Giga is a SI prefix in the SI system of units denoting Orders of magnitude , or 1,000,000,000. The Oxford English Dictionary reports the earliest written use of giga- in this sense to be in the Reports of the International Union of Pure and Applied Chemistry 14th Conference in 1947: "The following prefixes to abbreviations for the names...
.

See Orders of magnitude (numbers)
Orders of magnitude (numbers)

This list compares various sizes of positive numbers, including counts of things, dimensionless quantity and probability. Each number is given a name in the so called Long and short scales which is used in English speaking countries, as well as a name in the Long and short scales which is used in a series of countries that do not have English as th...
 for larger numbers; and long and short scales
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
.


facts below give a sense of how large 1,000,000,000 (109) is in the context of time according to current scientific evidence:



In terms of distance:

In terms of finance:

In terms of count:

A is a cube; B consists of 1000 cubes of type A.






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Encyclopedia


List of numbers
List of numbers

This is a list of articles about numbers ....
 - Integers
100000000
100000000 (number)

One hundred million is the natural number following 99999999 and preceding 100000001.In scientific notation, it is written as 108....
 1000000000 10000000000
Cardinal
Cardinal number

In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality of Set ....
One billion (short scale
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
)
Ordinal
Ordinal number

In set theory, an ordinal number, or just ordinal, is the order type of a well-order. They are usually identified with hereditarily transitive sets....
One billionth (short scale)
Factorization
Factorization

In mathematics, factorization or factoring is the decomposition of an object into a product of other objects, or factors, which when multiplication together give the original....
29 · 59
Binary
Binary numeral system

The binary numeral system, or notation with a radix of 2. Owing to its straightforward implementation in digital electronic circuitry using logic gates, the binary system is used internally by all modern computers....
111011100110101100101000000000
Hexadecimal
Hexadecimal

In mathematics and computer science, hexadecimal is a numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F to represent values ten to fifteen....
3B9ACA00


1,000,000,000 (one billion, short scale
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
) is the natural number
Natural number

In mathematics, a natural number can mean either an element of the Set = *n = = ? = ? ...
 following 999,999,999 and preceding 1,000,000,001.

In scientific notation
Scientific notation

Scientific notation, also known as standard form or as exponential notation, is a way of writing numbers that accommodates values too large or small to be conveniently written in standard decimal notation....
, it is written as 109.

In modern (short scale
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
) English language usage, it is usually called a billion (although in many other languages and long scale
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
 usage, a billion means a million millions, or 1,000,000,000,000, instead of a thousand millions).

In Indian English
Indian English

Indian English comprises several dialects or varieties of English language spoken primarily in India, and by first-generation members of the Non-resident Indian and Person of Indian Origin....
, it may be known as 100 crore
Crore

A crore is a unit in the Indian numbering system and was formerly a unit in the Persian numbering system, still widely used in Bangladesh, India, Maldives, Nepal, Pakistan, and Sri Lanka, and formerly in Iran....
.

The term milliard
Milliard

Milliard is a French language-derived numeral word meaning the number 1000000000 and which is used in France, Germany, the Scandinavian countries or the Netherlands....
 can also be used to refer to 1,000,000,000, though this terminology is rarely used in the English language, but often in other languages
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
.

Physical quantities can be expressed using the SI prefix
SI prefix

An SI prefix is a name or associated symbol that precedes a basic unit of measure to form a decimal multiple . The abbreviation SI is from the French language name Syst?me International d?Unit?s ....
 giga
Giga

Giga is a SI prefix in the SI system of units denoting Orders of magnitude , or 1,000,000,000. The Oxford English Dictionary reports the earliest written use of giga- in this sense to be in the Reports of the International Union of Pure and Applied Chemistry 14th Conference in 1947: "The following prefixes to abbreviations for the names...
.

See Orders of magnitude (numbers)
Orders of magnitude (numbers)

This list compares various sizes of positive numbers, including counts of things, dimensionless quantity and probability. Each number is given a name in the so called Long and short scales which is used in English speaking countries, as well as a name in the Long and short scales which is used in a series of countries that do not have English as th...
 for larger numbers; and long and short scales
Long and short scales

The long and short scales are two different numerical systems used throughout the world:Note that the difference between the two scales grows as numbers get larger....
.

Selected 10-digit numbers (1000000000 - 9999999999)

  • 1023456789 - smallest pandigital number
    Pandigital number

    In mathematics, a pandigital number is an integer that in a given base has among its significant digits each digit used in the base at least once....
     in base 10
  • 1026753849 - smallest pandigital square, including 0
  • 1073676287 - 15th Carol number
    Carol number

    A Carol number is an integer of the form . An equivalent formula is . The first few Carol numbers are: -1 , 7 , 47 , 223 , 959, 3967, 16127, 65023, 261119, 1046527 ....
  • 1073741824 = 230
  • 1073807359 - 14th Kynea number
    Kynea number

    A Kynea number is an integer of the form.An equivalent formula is.This indicates that a Kynea number is the nth power of 4 plus the th Mersenne number....
  • 1129760415 - 23rd Motzkin number
    Motzkin number

    In mathematics, a Motzkin number for a given number n is the number of different ways of drawing non-intersecting Chord on a circle between n points....
  • 1134903170 - 45th Fibonacci number
    Fibonacci number

    In mathematics, the Fibonacci numbers are a sequence of numbers named after Leonardo of Pisa, known as Fibonacci . Fibonacci's 1202 book Liber Abaci introduced the sequence to Western European mathematics, although the sequence had been previously described in Indian mathematics....
  • 1162261467 = 319
  • 1220703125 = 512
  • 1234567890 - pandigital number with the digits in order
  • 1311738121 - 25th Pell number
    Pell number

    In mathematics, the Pell numbers are an infinite sequence of integers that have been known since ancient times, the denominators of the closest rational approximations to the square root of 2....
  • 1382958545 - 15th Bell number
    Bell number

    In combinatorics mathematics, the nth Bell number, named in honor of Eric Temple Bell, is the number of partition of a set of a Set with n element , or equivalently, the number of equivalence relations on it....
  • 1406818759 - 30th Wedderburn-Etherington number
    Wedderburn-Etherington number

    In graph theory, the Wedderburn-Etherington numbers count how many weakly binary trees can be constructed: that is, the number of trees for which each graph vertex is adjacent to no more than three other such vertices, for a given number of Vertex s....
  • 1836311903 - 46th Fibonacci number
  • 1977326743 = 711
  • 2147483647 - 8th Mersenne prime
    Mersenne prime

    In mathematics, a Mersenne number is a positive integer that is one less than a power of two:Some definitions of Mersenne numbers require that the exponent n be prime....
     and the largest signed 32-bit integer
  • 2147483648 = 231
  • 2214502422 - 6th primary pseudoperfect number
    Primary pseudoperfect number

    In mathematics, and particularly in number theory, a primary pseudoperfect number is a number N that satisfies the Egyptian fraction equation...
  • 2357947691 = 119
  • 2971215073 - 11th Fibonacci prime (47th Fibonacci number)
  • 3166815962 - 26th Pell number
  • 3192727797 - 24th Motzkin number
  • 3323236238 - 31st Wedderburn-Etherington number
  • 3486784401 = 320
  • 4294836223 - 16th Carol number
  • 4294967291 - Largest prime 32-bit unsigned integer
  • 4294967295 - Maximum 32-bit unsigned integer (hexadecimal FFFFFFFF)
  • 4294967296 = 232
  • 4294967297 - the first composite Fermat number
  • 4295098367 - 15th Kynea number
  • 4807526976 - 48th Fibonacci number
  • 5784634181 - 13th alternating factorial
    Alternating factorial

    In mathematics, an alternating factorial is the absolute value of the alternating sum of the first n factorials.This is the same as their sum, with the odd-indexed factorials multiplied by -1 if n is even, and the even-indexed factorials multiplied by −1 if n is odd, resulting in an alternation of signs of the summands ....
  • 6210001000 - only self-descriptive number
    Self-descriptive number

    A self-descriptive number is an integer m that in a given radix b is b-digits long in which each digit d at position n counts how many instances of digit n are in m....
     in base 10
  • 6227020800 = 13!
    Factorial

    In mathematics, the factorial of a negative and non-negative numbers integer n, denoted by n!, is the Product of all positive integers less than or equal to n....
  • 6983776800 - 15th colossally abundant number
    Colossally abundant number

    In mathematics, a colossally abundant number is a certain kind of natural number. Formally, a number n is colossally abundant if and only if there is an e > 0 such that for all k > 1,...
  • 7645370045 - 27th Pell number
  • 7778742049 - 49th Fibonacci number
  • 7862958391 - 32nd Wedderburn-Etherington number
  • 8589869056 - 6th perfect number
    Perfect number

    In mathematics, a perfect number is defined as a Negative and non-negative numbers which is the sum of its proper positive divisors, that is, the sum of the positive divisors excluding the number itself....
  • 8589934592 = 233
  • 9043402501 - 25th Motzkin number
  • 9814072356
    9814072356 (number)

    9814072356 or 9,814,072,356 is 99066 Square , and is the eighty-seventh and largest square number using each of the digits 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0 exactly once ....
     - largest square pandigital number, largest pandigital pure power
  • 9876543210 - largest pandigital number without redundant digits


Sense of scale

The facts below give a sense of how large 1,000,000,000 (109) is in the context of time according to current scientific evidence:

  • 109 seconds is about 31.7 years.
  • About 109 minutes ago, the Roman Empire
    Roman Empire

    The Roman Empire was the Roman Republic phase of the Ancient Rome, characterised by an autocracy form of government and large territorial holdings in Europe and around the Mediterranean....
     was flourishing. (109 minutes is roughly 1,900 years.)
  • About 109 hours ago, modern human beings and their ancestors were living in the Stone Age
    Stone Age

    The Stone Age is a broad prehistory time period during which humans widely used Rock for toolmaking.Stone tools were made from a variety of different kinds of stone....
     (more precisely, the Middle Paleolithic
    Middle Paleolithic

    The Middle Paleolithic is the second subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. The term Middle Stone Age is used as an equivalent or a synonym for the Middle Paleolithic in African archeology....
    ). (109 hours is roughly 114,000 years.)
  • About 109 days ago, Australopithecus
    Australopithecus

    The genus Australopithecus is a genus of extinction hominids, made up of the gracile australopiths, and formerly also included their larger relatives, the robust australopiths ....
    , an ape-like creature related to an ancestor of modern humans, roamed the African savanna
    Savanna

    A savanna, or savannah, is a tropical, subtropical or temperate woodland ecosystem characterized by the trees being sufficiently small or widely spaced so that the Canopy does not close....
    s. (109 days is roughly 2.7 million years.)
  • About 109 months ago, dinosaur
    Dinosaur

    Dinosaurs were the dominant vertebrate animals of Landform ecosystems for over 160 million years, from the late Triassic Period until the end of the Cretaceous Period , when most of them became extinct in the Cretaceous?Tertiary extinction event....
    s walked the earth during the late Cretaceous
    Cretaceous

    The Cretaceous , usually abbreviated K for its German translation Kreide, is a geologic period from circa to million years ago . In the geologic timescale, the Cretaceous follows on the Jurassic period and is followed by the Paleogene period....
    . (109 months is roughly 82 million years.)
  • About 109 years ago, the first multicellular organism
    Multicellular organism

    Multicellular organisms are organisms consisting of more than one cell , and having differentiated cells that perform specialized functions in the cell....
    s appeared on Earth.
  • The universe
    Universe

    The universe is defined as everything that physically exists: the entirety of space and time, all forms of matter, energy and momentum, and the physical laws and physical constants that govern them....
     is currently thought to be about 13.7 × 109 years old.


In terms of distance:
  • 109 centimetres is about the distance from Chicago
    Chicago

    Chicago is the largest city in the U.S. state of Illinois and the Midwestern United States, as well as the List of United States cities by population city in the United States with more than 2.8 million residents....
     to Tokyo
    Tokyo

    , officially , is one of the 47 prefectures of Japan of Japan and located on the eastern side of the main island Honshu. The twenty-three special wards of Tokyo, each governed as a city, cover the area that was once the Tokyo City in the eastern part of the prefecture, and total over 8 million people....
    .
  • 109 inches is 15,783 miles, more than halfway around the world and sufficient to reach any point on the globe from any other point.
  • 109 metres is almost three times the distance from the Earth
    Earth

    Earth is the third planet from the Sun. Earth is the largest of the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Wiktionary:Terra.Note that by International Astronomical Union convention, the term "Terra" is used for naming extensive land masses, rather...
     to the Moon
    Moon

    The Moon is Earth's only natural satellite and the List of natural satellites by diameter satellite in the Solar System. The average centre-to-centre distance from the Earth to the Moon is km, about thirty times the diameter of the Earth....
    .
  • 109 kilometres is over six times the distance from the Earth to the Sun
    Sun

    The Sun , a G V star, is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass....
    .


In terms of finance:
  • The possession of 109 United States dollar
    United States dollar

    The United States dollar is the unit of currency of the United States and was defined by the Coinage Act of 1792 to be between 371 and 416 grains of silver ....
    s would place a person among the world's wealthiest individuals.


In terms of count:

A is a cube; B consists of 1000 cubes of type A. C consists of 1000 Bs; and D 1000 Cs. Thus there are 1 million As in C; and 1,000,000,000 As in D. Likewise, there are 1,000,000,000 cubic millimetres in a cubic metre.