Compare 1385 vs 1391
| Property | 1385 | 1391 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 2771 | 131 × 1071 |
| Prime factorization | 5 × 277 | 13 × 107 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 277, 1385 | 1, 13, 107, 1391 |
| Number of properties | 1 | 1 |
| Semiprimes | 409th | 412th |
| Roman numberals | MCCCLXXXV | MCCCXCI |
| Base 2 | 101011010012 | 101011011112 |
| Base 3 | 12200223 | 12201123 |
| Base 4 | 1112214 | 1112334 |
| Base 5 | 210205 | 210315 |
| Base 6 | 102256 | 102356 |
| Base 7 | 40167 | 40257 |
| Base 8 | 25518 | 25578 |
| Base 9 | 18089 | 18159 |
| Base 10 | 138510 | 139110 |
| Base 11 | 104a11 | 105511 |
| Base 12 | 97512 | 97b12 |
| Base 13 | 82713 | 83013 |
| Base 14 | 70d14 | 71514 |
| Base 15 | 62515 | 62b15 |
| Base 16 | 56916 | 56f16 |