Number
1,231
1,231 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 7
- Digital root
- 7
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 1,232
Primality
1,231 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
Representations
- In words
- one thousand two hundred thirty-one
- Ordinal
- 1231st
- Roman numeral
- MCCXXXI
- Binary
- 10011001111
- Octal
- 2317
- Hexadecimal
- 4CF
Also seen as
Prime neighborhood
Unicode codepoint
ӏ
U+04CF
Lowercase letter (Ll)
UTF-8 encoding: D3 8F (2 bytes).
Hex color
#0004CF
RGB(0, 4, 207)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.207.