Number
328
328 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 630
Primality
Prime factorization: 2 3 × 41
Divisors & multiples
Aliquot sum (sum of proper divisors):
302
Representations
- In words
- three hundred twenty-eight
- Ordinal
- 328th
- Roman numeral
- CCCXXVIII
- Binary
- 101001000
- Octal
- 510
- Hexadecimal
- 148
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 328, here are decompositions:
- 11 + 317 = 328
- 17 + 311 = 328
- 47 + 281 = 328
- 59 + 269 = 328
- 71 + 257 = 328
- 89 + 239 = 328
- 101 + 227 = 328
- 131 + 197 = 328
Showing the first eight; more decompositions exist.
Unicode codepoint
ň
U+0148
Lowercase letter (Ll)
UTF-8 encoding: C5 88 (2 bytes).
Hex color
#000148
RGB(0, 1, 72)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.72.