Compare 21007 vs 21018
| Property | 21007 | 21018 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 4 |
| Prime factorization | 71 × 30011 | 21 × 31 × 311 × 1131 |
| Prime factorization | 7 × 3001 | 2 × 3 × 31 × 113 |
| Divisors count | 4 | 16 |
| Divisors | 1, 7, 3001, 21007 | 1, 2, 3, 6, 31, 62, 93, 113, 186, 226, 339, 678, 3503, 7006, 10509, 21018 |
| Number of properties | 1 | 0 |
| Semiprimes | 5331st | |
| Roman numberals | ||
| Base 2 | 1010010000011112 | 1010010000110102 |
| Base 3 | 10012110013 | 10012111103 |
| Base 4 | 110200334 | 110201224 |
| Base 5 | 11330125 | 11330335 |
| Base 6 | 2411316 | 2411506 |
| Base 7 | 1151507 | 1151647 |
| Base 8 | 510178 | 510328 |
| Base 9 | 317319 | 317439 |
| Base 10 | 2100710 | 2101810 |
| Base 11 | 1486811 | 1487811 |
| Base 12 | 101a712 | 101b612 |
| Base 13 | 973c13 | 974a13 |
| Base 14 | 792714 | 793414 |
| Base 15 | 635715 | 636315 |
| Base 16 | 520f16 | 521a16 |