100,648
100,648 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digital root
- 1
- Palindrome
- No
- Reversed
- 846,001
- Recamán's sequence
- a(255,420) = 100,648
- Divisor count
- 16
- σ(n) — sum of divisors
- 197,280
Primality
Prime factorization: 2 3 × 23 × 547
Divisors & multiples
Representations
- In words
- one hundred thousand six hundred forty-eight
- Ordinal
- 100648th
- Binary
- 11000100100101000
- Octal
- 304450
- Hexadecimal
- 0x18928
- Base64
- AYko
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100648, here are decompositions:
- 89 + 100559 = 100648
- 101 + 100547 = 100648
- 131 + 100517 = 100648
- 137 + 100511 = 100648
- 179 + 100469 = 100648
- 257 + 100391 = 100648
- 269 + 100379 = 100648
- 479 + 100169 = 100648
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A4 A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.137.40.
- Address
- 0.1.137.40
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.137.40
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 100,648 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.