Compare 21007 vs 21009
| Property | 21007 | 21009 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 71 × 30011 | 31 × 471 × 1491 |
| Prime factorization | 7 × 3001 | 3 × 47 × 149 |
| Divisors count | 4 | 8 |
| Divisors | 1, 7, 3001, 21007 | 1, 3, 47, 141, 149, 447, 7003, 21009 |
| Number of properties | 1 | 0 |
| Semiprimes | 5331st | |
| Roman numberals | ||
| Base 2 | 1010010000011112 | 1010010000100012 |
| Base 3 | 10012110013 | 10012110103 |
| Base 4 | 110200334 | 110201014 |
| Base 5 | 11330125 | 11330145 |
| Base 6 | 2411316 | 2411336 |
| Base 7 | 1151507 | 1151527 |
| Base 8 | 510178 | 510218 |
| Base 9 | 317319 | 317339 |
| Base 10 | 2100710 | 2100910 |
| Base 11 | 1486811 | 1486a11 |
| Base 12 | 101a712 | 101a912 |
| Base 13 | 973c13 | 974113 |
| Base 14 | 792714 | 792914 |
| Base 15 | 635715 | 635915 |
| Base 16 | 520f16 | 521116 |