100000000 (number)
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Lua error in Module:Infobox at line 235: malformed pattern (missing ']'). One hundred million (100,000,000) is the natural number following 99999999 and preceding 100000001.
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 yì (億) (or wànwàn 萬萬 in ancient texts), oku (億), 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 – 9-digit analogue to Kaprekar constant
- 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
