100,748
100,748 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digital root
- 2
- Palindrome
- No
- Reversed
- 847,001
- Recamán's sequence
- a(255,220) = 100,748
- Divisor count
- 12
- σ(n) — sum of divisors
- 178,920
Primality
Prime factorization: 2 2 × 89 × 283
Divisors & multiples
Representations
- In words
- one hundred thousand seven hundred forty-eight
- Ordinal
- 100748th
- Binary
- 11000100110001100
- Octal
- 304614
- Hexadecimal
- 0x1898C
- Base64
- AYmM
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100748, here are decompositions:
- 7 + 100741 = 100748
- 79 + 100669 = 100748
- 127 + 100621 = 100748
- 139 + 100609 = 100748
- 157 + 100591 = 100748
- 199 + 100549 = 100748
- 211 + 100537 = 100748
- 229 + 100519 = 100748
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A6 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.137.140.
- Address
- 0.1.137.140
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.137.140
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 100,748 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.