Compare 123981 vs 123991
| Property | 123981 | 123991 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 31 × 111 × 131 × 172 | 71 × 177131 |
| Prime factorization | 3 × 11 × 13 × 17 × 17 | 7 × 17713 |
| Divisors count | 24 | 4 |
| Divisors | 1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 289, 429, 561, 663, 867, 2431, 3179, 3757, 7293, 9537, 11271, 41327, 123981 | 1, 7, 17713, 123991 |
| Number of properties | 0 | 1 |
| Semiprimes | 28697th | |
| Roman numberals | ||
| Base 2 | 111100100010011012 | 111100100010101112 |
| Base 3 | 200220012203 | 200220020213 |
| Base 4 | 1321010314 | 1321011134 |
| Base 5 | 124314115 | 124314315 |
| Base 6 | 23535536 | 23540116 |
| Base 7 | 10243147 | 10243307 |
| Base 8 | 3621158 | 3621278 |
| Base 9 | 2080569 | 2080679 |
| Base 10 | 12398110 | 12399110 |
| Base 11 | 8517011 | 8517a11 |
| Base 12 | 5b8b912 | 5b90712 |
| Base 13 | 4458013 | 4458a13 |
| Base 14 | 3327b14 | 3328714 |
| Base 15 | 26b0615 | 26b1115 |
| Base 16 | 1e44d16 | 1e45716 |