Compare 21005 vs 21015
| Property | 21005 | 21015 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 51 × 42011 | 32 × 51 × 4671 |
| Prime factorization | 5 × 4201 | 3 × 3 × 5 × 467 |
| Divisors count | 4 | 12 |
| Divisors | 1, 5, 4201, 21005 | 1, 3, 5, 9, 15, 45, 467, 1401, 2335, 4203, 7005, 21015 |
| Number of properties | 1 | 0 |
| Semiprimes | 5330th | |
| Roman numberals | ||
| Base 2 | 1010010000011012 | 1010010000101112 |
| Base 3 | 10012102223 | 10012111003 |
| Base 4 | 110200314 | 110201134 |
| Base 5 | 11330105 | 11330305 |
| Base 6 | 2411256 | 2411436 |
| Base 7 | 1151457 | 1151617 |
| Base 8 | 510158 | 510278 |
| Base 9 | 317289 | 317409 |
| Base 10 | 2100510 | 2101510 |
| Base 11 | 1486611 | 1487511 |
| Base 12 | 101a512 | 101b312 |
| Base 13 | 973a13 | 974713 |
| Base 14 | 792514 | 793114 |
| Base 15 | 635515 | 636015 |
| Base 16 | 520d16 | 521716 |