101,972
101,972 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digital root
- 2
- Palindrome
- No
- Reversed
- 279,101
- Divisor count
- 24
- σ(n) — sum of divisors
- 201,096
Primality
Prime factorization: 2 2 × 13 × 37 × 53
Divisors & multiples
Representations
- In words
- one hundred one thousand nine hundred seventy-two
- Ordinal
- 101972nd
- Binary
- 11000111001010100
- Octal
- 307124
- Hexadecimal
- 0x18E54
- Base64
- AY5U
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 101972, here are decompositions:
- 43 + 101929 = 101972
- 103 + 101869 = 101972
- 109 + 101863 = 101972
- 139 + 101833 = 101972
- 223 + 101749 = 101972
- 271 + 101701 = 101972
- 331 + 101641 = 101972
- 373 + 101599 = 101972
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.142.84.
- Address
- 0.1.142.84
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.142.84
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 101,972 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.