100,664
100,664 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digital root
- 8
- Palindrome
- No
- Reversed
- 466,001
- Recamán's sequence
- a(255,388) = 100,664
- Divisor count
- 8
- σ(n) — sum of divisors
- 188,760
Primality
Prime factorization: 2 3 × 12583
Divisors & multiples
Representations
- In words
- one hundred thousand six hundred sixty-four
- Ordinal
- 100664th
- Binary
- 11000100100111000
- Octal
- 304470
- Hexadecimal
- 0x18938
- Base64
- AYk4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100664, here are decompositions:
- 43 + 100621 = 100664
- 73 + 100591 = 100664
- 127 + 100537 = 100664
- 163 + 100501 = 100664
- 181 + 100483 = 100664
- 271 + 100393 = 100664
- 307 + 100357 = 100664
- 331 + 100333 = 100664
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A4 B8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.137.56.
- Address
- 0.1.137.56
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.137.56
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 100,664 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.