105,122
105,122 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digital root
- 2
- Palindrome
- No
- Reversed
- 221,501
- Recamán's sequence
- a(90,839) = 105,122
- Divisor count
- 4
- σ(n) — sum of divisors
- 157,686
Primality
Prime factorization: 2 × 52561
Divisors & multiples
Representations
- In words
- one hundred five thousand one hundred twenty-two
- Ordinal
- 105122nd
- Binary
- 11001101010100010
- Octal
- 315242
- Hexadecimal
- 0x19AA2
- Base64
- AZqi
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 105122, here are decompositions:
- 103 + 105019 = 105122
- 151 + 104971 = 105122
- 163 + 104959 = 105122
- 211 + 104911 = 105122
- 271 + 104851 = 105122
- 349 + 104773 = 105122
- 379 + 104743 = 105122
- 421 + 104701 = 105122
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.154.162.
- Address
- 0.1.154.162
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.154.162
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 105,122 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.