100,442
100,442 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digital root
- 2
- Palindrome
- No
- Reversed
- 244,001
- Divisor count
- 4
- σ(n) — sum of divisors
- 150,666
Primality
Prime factorization: 2 × 50221
Divisors & multiples
Representations
- In words
- one hundred thousand four hundred forty-two
- Ordinal
- 100442nd
- Binary
- 11000100001011010
- Octal
- 304132
- Hexadecimal
- 0x1885A
- Base64
- AYha
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100442, here are decompositions:
- 31 + 100411 = 100442
- 79 + 100363 = 100442
- 109 + 100333 = 100442
- 151 + 100291 = 100442
- 163 + 100279 = 100442
- 229 + 100213 = 100442
- 313 + 100129 = 100442
- 373 + 100069 = 100442
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A1 9A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.136.90.
- Address
- 0.1.136.90
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.136.90
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 100,442 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.