42,628
42,628 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 22
- Digital root
- 4
- Palindrome
- No
- Reversed
- 82,624
- Divisor count
- 6
- σ(n) — sum of divisors
- 74,606
Primality
Prime factorization: 2 2 × 10657
Divisors & multiples
Representations
- In words
- forty-two thousand six hundred twenty-eight
- Ordinal
- 42628th
- Binary
- 1010011010000100
- Octal
- 123204
- Hexadecimal
- 0xA684
- Base64
- poQ=
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42628, here are decompositions:
- 17 + 42611 = 42628
- 59 + 42569 = 42628
- 71 + 42557 = 42628
- 137 + 42491 = 42628
- 167 + 42461 = 42628
- 191 + 42437 = 42628
- 269 + 42359 = 42628
- 347 + 42281 = 42628
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 9A 84 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.132.
- Address
- 0.0.166.132
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.166.132
Unspecified address (0.0.0.0/8) — "this network" placeholder.
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.