Number
432
432 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 9
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 20
- σ(n) — sum of divisors
- 1,240
Primality
Prime factorization: 2 4 × 3 3
Divisors & multiples
All divisors (20)
Aliquot sum (sum of proper divisors):
808
Factor pairs (a × b = 432)
Representations
- In words
- four hundred thirty-two
- Ordinal
- 432nd
- Roman numeral
- CDXXXII
- Binary
- 110110000
- Octal
- 660
- Hexadecimal
- 1B0
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 432, here are decompositions:
- 11 + 421 = 432
- 13 + 419 = 432
- 23 + 409 = 432
- 31 + 401 = 432
- 43 + 389 = 432
- 53 + 379 = 432
- 59 + 373 = 432
- 73 + 359 = 432
Showing the first eight; more decompositions exist.
Unicode codepoint
ư
U+01B0
Lowercase letter (Ll)
UTF-8 encoding: C6 B0 (2 bytes).
Hex color
#0001B0
RGB(0, 1, 176)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.176.