100,072
100,072 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Reversed
- 270,001
- Divisor count
- 16
- σ(n) — sum of divisors
- 214,560
Primality
Prime factorization: 2 3 × 7 × 1787
Divisors & multiples
Representations
- In words
- one hundred thousand seventy-two
- Ordinal
- 100072nd
- Binary
- 11000011011101000
- Octal
- 303350
- Hexadecimal
- 0x186E8
- Base64
- AYbo
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100072, here are decompositions:
- 3 + 100069 = 100072
- 23 + 100049 = 100072
- 29 + 100043 = 100072
- 53 + 100019 = 100072
- 83 + 99989 = 100072
- 101 + 99971 = 100072
- 149 + 99923 = 100072
- 191 + 99881 = 100072
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 9B A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.134.232.
- Address
- 0.1.134.232
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.134.232
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 100,072 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.