Number
1,321
1,321 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
- 1,322
Primality
1,321 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 three hundred twenty-one
- Ordinal
- 1321st
- Roman numeral
- MCCCXXI
- Binary
- 10100101001
- Octal
- 2451
- Hexadecimal
- 529
Also seen as
Prime neighborhood
Unicode codepoint
ԩ
U+0529
Lowercase letter (Ll)
UTF-8 encoding: D4 A9 (2 bytes).
Hex color
#000529
RGB(0, 5, 41)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.41.