Compare 21285 vs 21289
| Property | 21285 | 21289 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 32 × 51 × 111 × 431 | 611 × 3491 |
| Prime factorization | 3 × 3 × 5 × 11 × 43 | 61 × 349 |
| Divisors count | 24 | 4 |
| Divisors | 1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 129, 165, 215, 387, 473, 495, 645, 1419, 1935, 2365, 4257, 7095, 21285 | 1, 61, 349, 21289 |
| Number of properties | 0 | 1 |
| Semiprimes | 5395th | |
| Roman numberals | ||
| Base 2 | 1010011001001012 | 1010011001010012 |
| Base 3 | 10020121003 | 10020121113 |
| Base 4 | 110302114 | 110302214 |
| Base 5 | 11401205 | 11401245 |
| Base 6 | 2423136 | 2423216 |
| Base 7 | 1160257 | 1160327 |
| Base 8 | 514458 | 514518 |
| Base 9 | 321709 | 321749 |
| Base 10 | 2128510 | 2128910 |
| Base 11 | 14aa011 | 14aa411 |
| Base 12 | 1039912 | 103a112 |
| Base 13 | 98c413 | 98c813 |
| Base 14 | 7a8514 | 7a8914 |
| Base 15 | 649015 | 649415 |
| Base 16 | 532516 | 532916 |