Compare 1386 vs 1391
| Property | 1386 | 1391 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 21 × 32 × 71 × 111 | 131 × 1071 |
| Prime factorization | 2 × 3 × 3 × 7 × 11 | 13 × 107 |
| Divisors count | 24 | 4 |
| Divisors | 1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386 | 1, 13, 107, 1391 |
| Number of properties | 0 | 1 |
| Semiprimes | 412th | |
| Roman numberals | MCCCLXXXVI | MCCCXCI |
| Base 2 | 101011010102 | 101011011112 |
| Base 3 | 12201003 | 12201123 |
| Base 4 | 1112224 | 1112334 |
| Base 5 | 210215 | 210315 |
| Base 6 | 102306 | 102356 |
| Base 7 | 40207 | 40257 |
| Base 8 | 25528 | 25578 |
| Base 9 | 18109 | 18159 |
| Base 10 | 138610 | 139110 |
| Base 11 | 105011 | 105511 |
| Base 12 | 97612 | 97b12 |
| Base 13 | 82813 | 83013 |
| Base 14 | 71014 | 71514 |
| Base 15 | 62615 | 62b15 |
| Base 16 | 56a16 | 56f16 |