Compare 21005 vs 21012
| Property | 21005 | 21012 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 5 |
| Prime factorization | 51 × 42011 | 22 × 31 × 171 × 1031 |
| Prime factorization | 5 × 4201 | 2 × 2 × 3 × 17 × 103 |
| Divisors count | 4 | 24 |
| Divisors | 1, 5, 4201, 21005 | 1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 103, 204, 206, 309, 412, 618, 1236, 1751, 3502, 5253, 7004, 10506, 21012 |
| Number of properties | 1 | 0 |
| Semiprimes | 5330th | |
| Roman numberals | ||
| Base 2 | 1010010000011012 | 1010010000101002 |
| Base 3 | 10012102223 | 10012110203 |
| Base 4 | 110200314 | 110201104 |
| Base 5 | 11330105 | 11330225 |
| Base 6 | 2411256 | 2411406 |
| Base 7 | 1151457 | 1151557 |
| Base 8 | 510158 | 510248 |
| Base 9 | 317289 | 317369 |
| Base 10 | 2100510 | 2101210 |
| Base 11 | 1486611 | 1487211 |
| Base 12 | 101a512 | 101b012 |
| Base 13 | 973a13 | 974413 |
| Base 14 | 792514 | 792c14 |
| Base 15 | 635515 | 635c15 |
| Base 16 | 520d16 | 521416 |