101,242
101,242 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Reversed
- 242,101
- Recamán's sequence
- a(98,315) = 101,242
- Divisor count
- 8
- σ(n) — sum of divisors
- 153,216
Primality
Prime factorization: 2 × 223 × 227
Divisors & multiples
Representations
- In words
- one hundred one thousand two hundred forty-two
- Ordinal
- 101242nd
- Binary
- 11000101101111010
- Octal
- 305572
- Hexadecimal
- 0x18B7A
- Base64
- AYt6
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 101242, here are decompositions:
- 59 + 101183 = 101242
- 83 + 101159 = 101242
- 101 + 101141 = 101242
- 131 + 101111 = 101242
- 179 + 101063 = 101242
- 191 + 101051 = 101242
- 233 + 101009 = 101242
- 311 + 100931 = 101242
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 AD BA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.139.122.
- Address
- 0.1.139.122
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.139.122
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 101,242 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.