100,242
100,242 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 9
- Digital root
- 9
- Palindrome
- No
- Reversed
- 242,001
- Divisor count
- 12
- σ(n) — sum of divisors
- 217,230
Primality
Prime factorization: 2 × 3 2 × 5569
Divisors & multiples
Representations
- In words
- one hundred thousand two hundred forty-two
- Ordinal
- 100242nd
- Binary
- 11000011110010010
- Octal
- 303622
- Hexadecimal
- 0x18792
- Base64
- AYeS
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100242, here are decompositions:
- 5 + 100237 = 100242
- 29 + 100213 = 100242
- 53 + 100189 = 100242
- 59 + 100183 = 100242
- 73 + 100169 = 100242
- 89 + 100153 = 100242
- 113 + 100129 = 100242
- 139 + 100103 = 100242
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 9E 92 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.135.146.
- Address
- 0.1.135.146
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.135.146
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 100,242 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.