Number
2,521
2,521 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 2,522
Primality
2,521 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
Representations
- In words
- two thousand five hundred twenty-one
- Ordinal
- 2521st
- Roman numeral
- MMDXXI
- Binary
- 100111011001
- Octal
- 4731
- Hexadecimal
- 9D9