Compare 631 vs 1009
| Property | 631 | 1009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6311 | 10091 |
| Prime factorization | 631 | 1009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 631 | 1, 1009 |
| Number of properties | 6 | 10 |
| Centered triangular primes | 7th | |
| Chen primes | 80th | 116th |
| Cousin primes (1st member) | 42nd | |
| Cuban primes 1 | 10th | |
| Emirps | 37th | |
| Good primes | 45th | |
| Happy primes | 36th | |
| Isolated primes | 60th | 100th |
| Lucky primes | 32nd | 44th |
| Primes | 115th | 169th |
| Pythagorean primes | 81st | |
| Solinas primes | 44th | |
| Roman numberals | DCXXXI | MIX |
| Base 2 | 10011101112 | 11111100012 |
| Base 3 | 2121013 | 11011013 |
| Base 4 | 213134 | 333014 |
| Base 5 | 100115 | 130145 |
| Base 6 | 25316 | 44016 |
| Base 7 | 15617 | 26417 |
| Base 8 | 11678 | 17618 |
| Base 9 | 7719 | 13419 |
| Base 10 | 63110 | 100910 |
| Base 11 | 52411 | 83811 |
| Base 12 | 44712 | 70112 |
| Base 13 | 39713 | 5c813 |
| Base 14 | 33114 | 52114 |
| Base 15 | 2c115 | 47415 |
| Base 16 | 27716 | 3f116 |