Compare 1631 vs 1642
| Property | 1631 | 1642 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 71 × 2331 | 21 × 8211 |
| Prime factorization | 7 × 233 | 2 × 821 |
| Divisors count | 4 | 4 |
| Divisors | 1, 7, 233, 1631 | 1, 2, 821, 1642 |
| Number of properties | 1 | 1 |
| Semiprimes | 467th | 471st |
| Roman numberals | MDCXXXI | MDCXLII |
| Base 2 | 110010111112 | 110011010102 |
| Base 3 | 20201023 | 20202113 |
| Base 4 | 1211334 | 1212224 |
| Base 5 | 230115 | 230325 |
| Base 6 | 113156 | 113346 |
| Base 7 | 45207 | 45347 |
| Base 8 | 31378 | 31528 |
| Base 9 | 22129 | 22249 |
| Base 10 | 163110 | 164210 |
| Base 11 | 125311 | 126311 |
| Base 12 | b3b12 | b4a12 |
| Base 13 | 98613 | 99413 |
| Base 14 | 84714 | 85414 |
| Base 15 | 73b15 | 74715 |
| Base 16 | 65f16 | 66a16 |