Compare 1620 vs 1631
| Property | 1620 | 1631 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 7 | 2 |
| Prime factorization | 22 × 34 × 51 | 71 × 2331 |
| Prime factorization | 2 × 2 × 3 × 3 × 3 × 3 × 5 | 7 × 233 |
| Divisors count | 30 | 4 |
| Divisors | 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620 | 1, 7, 233, 1631 |
| Number of properties | 0 | 1 |
| Semiprimes | 467th | |
| Roman numberals | MDCXX | MDCXXXI |
| Base 2 | 110010101002 | 110010111112 |
| Base 3 | 20200003 | 20201023 |
| Base 4 | 1211104 | 1211334 |
| Base 5 | 224405 | 230115 |
| Base 6 | 113006 | 113156 |
| Base 7 | 45037 | 45207 |
| Base 8 | 31248 | 31378 |
| Base 9 | 22009 | 22129 |
| Base 10 | 162010 | 163110 |
| Base 11 | 124311 | 125311 |
| Base 12 | b3012 | b3b12 |
| Base 13 | 97813 | 98613 |
| Base 14 | 83a14 | 84714 |
| Base 15 | 73015 | 73b15 |
| Base 16 | 65416 | 65f16 |