Number
426
426 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 12
- Digital root
- 3
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 864
Primality
Prime factorization: 2 × 3 × 71
Divisors & multiples
Aliquot sum (sum of proper divisors):
438
Representations
- In words
- four hundred twenty-six
- Ordinal
- 426th
- Roman numeral
- CDXXVI
- Binary
- 110101010
- Octal
- 652
- Hexadecimal
- 1AA
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 426, here are decompositions:
- 5 + 421 = 426
- 7 + 419 = 426
- 17 + 409 = 426
- 29 + 397 = 426
- 37 + 389 = 426
- 43 + 383 = 426
- 47 + 379 = 426
- 53 + 373 = 426
Showing the first eight; more decompositions exist.
Unicode codepoint
ƪ
U+01AA
Lowercase letter (Ll)
UTF-8 encoding: C6 AA (2 bytes).
Hex color
#0001AA
RGB(0, 1, 170)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.170.