105,248
105,248 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digital root
- 2
- Palindrome
- No
- Reversed
- 842,501
- Recamán's sequence
- a(89,963) = 105,248
- Divisor count
- 48
- σ(n) — sum of divisors
- 254,016
Primality
Prime factorization: 2 5 × 11 × 13 × 23
Divisors & multiples
Representations
- In words
- one hundred five thousand two hundred forty-eight
- Ordinal
- 105248th
- Binary
- 11001101100100000
- Octal
- 315440
- Hexadecimal
- 0x19B20
- Base64
- AZsg
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 105248, here are decompositions:
- 19 + 105229 = 105248
- 37 + 105211 = 105248
- 151 + 105097 = 105248
- 211 + 105037 = 105248
- 229 + 105019 = 105248
- 277 + 104971 = 105248
- 331 + 104917 = 105248
- 337 + 104911 = 105248
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.155.32.
- Address
- 0.1.155.32
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.155.32
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 105,248 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.