Compare 21998 vs 22009
| Property | 21998 | 22009 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 171 × 6471 | 131 × 16931 |
| Prime factorization | 2 × 17 × 647 | 13 × 1693 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 17, 34, 647, 1294, 10999, 21998 | 1, 13, 1693, 22009 |
| Number of properties | 0 | 1 |
| Semiprimes | 5557th | |
| Roman numberals | ||
| Base 2 | 1010101111011102 | 1010101111110012 |
| Base 3 | 10100112023 | 10100120113 |
| Base 4 | 111132324 | 111133214 |
| Base 5 | 12004435 | 12010145 |
| Base 6 | 2455026 | 2455216 |
| Base 7 | 1210647 | 1211117 |
| Base 8 | 527568 | 527718 |
| Base 9 | 331529 | 331649 |
| Base 10 | 2199810 | 2200910 |
| Base 11 | 1558911 | 1559911 |
| Base 12 | 1089212 | 108a112 |
| Base 13 | a02213 | a03013 |
| Base 14 | 803414 | 804114 |
| Base 15 | 67b815 | 67c415 |
| Base 16 | 55ee16 | 55f916 |