Compare 20987 vs 21005
| Property | 20987 | 21005 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 311 × 6771 | 51 × 42011 |
| Prime factorization | 31 × 677 | 5 × 4201 |
| Divisors count | 4 | 4 |
| Divisors | 1, 31, 677, 20987 | 1, 5, 4201, 21005 |
| Number of properties | 1 | 1 |
| Semiprimes | 5323rd | 5330th |
| Roman numberals | ||
| Base 2 | 1010001111110112 | 1010010000011012 |
| Base 3 | 10012100223 | 10012102223 |
| Base 4 | 110133234 | 110200314 |
| Base 5 | 11324225 | 11330105 |
| Base 6 | 2410556 | 2411256 |
| Base 7 | 1151217 | 1151457 |
| Base 8 | 507738 | 510158 |
| Base 9 | 317089 | 317289 |
| Base 10 | 2098710 | 2100510 |
| Base 11 | 1484a11 | 1486611 |
| Base 12 | 1018b12 | 101a512 |
| Base 13 | 972513 | 973a13 |
| Base 14 | 791114 | 792514 |
| Base 15 | 634215 | 635515 |
| Base 16 | 51fb16 | 520d16 |