100,421
100,421 is a composite number, odd.
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 8
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 124,001
- Recamán's sequence
- a(99,249) = 100,421
- Square (n²)
- 10,084,377,241
- Cube (n³)
- 1,012,683,246,918,461
- Divisor count
- 4
- σ(n) — sum of divisors
- 101,292
- φ(n) — Euler's totient
- 99,552
- Sum of prime factors
- 870
Primality
Prime factorization: 137 × 733
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred thousand four hundred twenty-one
- Ordinal
- 100421st
- Binary
- 11000100001000101
- Octal
- 304105
- Hexadecimal
- 0x18845
- Base64
- AYhF
- One's complement
- 4,294,866,874 (32-bit)
- Scientific notation
- 1.00421 × 10⁵
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρυκαʹ
- Mayan (base 20)
- 𝋬·𝋫·𝋡·𝋡
- Chinese
- 一十萬零四百二十一
- Chinese (financial)
- 壹拾萬零肆佰貳拾壹
Also seen as
UTF-8 encoding: F0 98 A1 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.136.69.
- Address
- 0.1.136.69
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.136.69
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 100,421 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 100421 first appears in π at position 436,627 of the decimal expansion (the 436,627ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.