Number
3,121
3,121 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 7
- Digital root
- 7
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 3,122
Primality
3,121 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
Representations
- In words
- three thousand one hundred twenty-one
- Ordinal
- 3121st
- Roman numeral
- MMMCXXI
- Binary
- 110000110001
- Octal
- 6061
- Hexadecimal
- C31
Also seen as
Prime neighborhood
Unicode codepoint
ఱ
U+0C31
Other letter (Lo)
UTF-8 encoding: E0 B0 B1 (3 bytes).
Hex color
#000C31
RGB(0, 12, 49)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.12.49.