7,142
7,142 is a composite number, even.
Properties
Primality
Prime factorization: 2 × 3571
Divisors & multiples
Representations
- In words
- seven thousand one hundred forty-two
- Ordinal
- 7142nd
- Binary
- 1101111100110
- Octal
- 15746
- Hexadecimal
- 0x1BE6
- Base64
- G+Y=
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 7142, here are decompositions:
- 13 + 7129 = 7142
- 73 + 7069 = 7142
- 103 + 7039 = 7142
- 151 + 6991 = 7142
- 181 + 6961 = 7142
- 193 + 6949 = 7142
- 271 + 6871 = 7142
- 313 + 6829 = 7142
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 AF A6 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.27.230.
- Address
- 0.0.27.230
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.27.230
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.