Number
21,313
21,313 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 21,314
Primality
21,313 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
Representations
- In words
- twenty-one thousand three hundred thirteen
- Ordinal
- 21313th
- Binary
- 101001101000001
- Octal
- 51501
- Hexadecimal
- 5341
Also seen as
Prime neighborhood
Unicode codepoint
十
U+5341
Other letter (Lo)
UTF-8 encoding: E5 8D 81 (3 bytes).
Hex color
#005341
RGB(0, 83, 65)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.83.65.