101,161
101,161 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Reversed
- 161,101
- Flips to (rotate 180°)
- 191,101
- Recamán's sequence
- a(98,477) = 101,161
- Divisor count
- 2
- σ(n) — sum of divisors
- 101,162
Primality
101,161 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Representations
- In words
- one hundred one thousand one hundred sixty-one
- Ordinal
- 101161st
- Binary
- 11000101100101001
- Octal
- 305451
- Hexadecimal
- 0x18B29
- Base64
- AYsp
Also seen as
UTF-8 encoding: F0 98 AC A9 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.139.41.
- Address
- 0.1.139.41
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.139.41
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 101,161 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.