Compare 631 vs 634
| Property | 631 | 634 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6311 | 21 × 3171 |
| Prime factorization | 631 | 2 × 317 |
| Divisors count | 2 | 4 |
| Divisors | 1, 631 | 1, 2, 317, 634 |
| Number of properties | 6 | 1 |
| Centered triangular primes | 7th | |
| Chen primes | 80th | |
| Cuban primes 1 | 10th | |
| Isolated primes | 60th | |
| Lucky primes | 32nd | |
| Primes | 115th | |
| Semiprimes | 194th | |
| Roman numberals | DCXXXI | DCXXXIV |
| Base 2 | 10011101112 | 10011110102 |
| Base 3 | 2121013 | 2121113 |
| Base 4 | 213134 | 213224 |
| Base 5 | 100115 | 100145 |
| Base 6 | 25316 | 25346 |
| Base 7 | 15617 | 15647 |
| Base 8 | 11678 | 11728 |
| Base 9 | 7719 | 7749 |
| Base 10 | 63110 | 63410 |
| Base 11 | 52411 | 52711 |
| Base 12 | 44712 | 44a12 |
| Base 13 | 39713 | 39a13 |
| Base 14 | 33114 | 33414 |
| Base 15 | 2c115 | 2c415 |
| Base 16 | 27716 | 27a16 |