100,942
100,942 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digital root
- 7
- Palindrome
- No
- Reversed
- 249,001
- Divisor count
- 8
- σ(n) — sum of divisors
- 155,232
Primality
Prime factorization: 2 × 41 × 1231
Divisors & multiples
Representations
- In words
- one hundred thousand nine hundred forty-two
- Ordinal
- 100942nd
- Binary
- 11000101001001110
- Octal
- 305116
- Hexadecimal
- 0x18A4E
- Base64
- AYpO
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100942, here are decompositions:
- 5 + 100937 = 100942
- 11 + 100931 = 100942
- 29 + 100913 = 100942
- 89 + 100853 = 100942
- 113 + 100829 = 100942
- 131 + 100811 = 100942
- 173 + 100769 = 100942
- 239 + 100703 = 100942
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A9 8E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.138.78.
- Address
- 0.1.138.78
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.138.78
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 100,942 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.