 # 100,000,000

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 Cardinal  One hundred millionRoman numeral  C Factorization  2 × 5Ternary  202220111120122013 Ordinal  100000000th (one hundred millionth)Binary  1011111010111100001000000002

## 100 000 000 years from now

One hundred million (100,000,000) is the natural number following 99,999,999 and preceding 100,000,001.

## Contents

In scientific notation, it is written as 108.

East Asian languages treat 100,000,000 as a counting unit, significant as the square of a myriad, also a counting unit. In Chinese, Japanese, and Korean respectively it is () (or wànwàn 萬萬 in ancient texts), oku (), and eok (억/億). These languages do not have single words for a thousand to the second, third, fifth power, etc.

## Selected 9-digit numbers (100,000,001–999,999,999)

• 102334155 – Fibonacci number
• 107890609 – Wedderburn-Etherington number
• 111111111 – repunit, square root of 12345678987654321
• 111111113 – Chen prime, Sophie Germain prime, cousin prime.
• 123456789 – smallest zeroless base 10 pandigital number
• 129140163 = 317
• 129644790 – Catalan number
• 134217728 = 227
• 139854276 – the smallest pandigital square
• 142547559 – Motzkin number
• 165580141 – Fibonacci number
• 179424673 – 10000000th prime number
• 190899322 – Bell number
• 214358881 = 118
• 222222222 – repdigit
• 222222227 – safe prime
• 225058681 – Pell number
• 225331713 – self-descriptive number in base 9
• 244140625 = 512
• 253450711 – Wedderburn-Etherington number
• 267914296 – Fibonacci number
• 268402687 – Carol number
• 268435456 = 228
• 268468223 – Kynea number
• 272400600 – the number of terms of the harmonic series required to pass 20
• 275305224 – the number of magic squares of order 5, excluding rotations and reflections
• 282475249 = 710
• 333333333 – repdigit
• 367567200 – colossally abundant number, superior highly composite number
• 381654729 – the only polydivisible number that is also a zeroless pandigital number
• 387420489 = 318, 99 and in tetration notation 29
• 400763223 – Motzkin number
• 433494437 – Fibonacci number
• 442386619 – alternating factorial
• 444444444 – repdigit
• 477638700 – Catalan number
• 479001599 – factorial prime
• 479001600 = 12!
• 536870912 = 229
• 543339720 – Pell number
• 554999445 – a Kaprekar constant for digit length 9 in base 10
• 555555555 – repdigit
• 596572387 – Wedderburn-Etherington number
• 666666666 – repdigit
• 701408733 – Fibonacci number
• 715827883 – Wagstaff prime
• 777777777 – repdigit
• 815730721 = 138
• 888888888 – repdigit
• 906150257 – smallest counterexample to the Polya conjecture
• 987654321 – largest zeroless pandigital number
• 999999937 – largest 9-digit prime
• 999999999 – repdigit
• 100,000,000 Wikipedia