Number
321
321 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 6
- Digital root
- 6
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 432
Primality
Prime factorization: 3 × 107
Divisors & multiples
Aliquot sum (sum of proper divisors):
111
Representations
- In words
- three hundred twenty-one
- Ordinal
- 321st
- Roman numeral
- CCCXXI
- Binary
- 101000001
- Octal
- 501
- Hexadecimal
- 141
Also seen as
Unicode codepoint
Ł
U+0141
Uppercase letter (Lu)
UTF-8 encoding: C5 81 (2 bytes).
Hex color
#000141
RGB(0, 1, 65)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.65.