100,372
100,372 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Reversed
- 273,001
- Divisor count
- 12
- σ(n) — sum of divisors
- 183,456
Primality
Prime factorization: 2 2 × 23 × 1091
Divisors & multiples
Representations
- In words
- one hundred thousand three hundred seventy-two
- Ordinal
- 100372nd
- Binary
- 11000100000010100
- Octal
- 304024
- Hexadecimal
- 0x18814
- Base64
- AYgU
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100372, here are decompositions:
- 11 + 100361 = 100372
- 29 + 100343 = 100372
- 59 + 100313 = 100372
- 101 + 100271 = 100372
- 179 + 100193 = 100372
- 263 + 100109 = 100372
- 269 + 100103 = 100372
- 353 + 100019 = 100372
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A0 94 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.136.20.
- Address
- 0.1.136.20
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.136.20
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 100,372 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.