Compare 1387 vs 1390
| Property | 1387 | 1390 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 191 × 731 | 21 × 51 × 1391 |
| Prime factorization | 19 × 73 | 2 × 5 × 139 |
| Divisors count | 4 | 8 |
| Divisors | 1, 19, 73, 1387 | 1, 2, 5, 10, 139, 278, 695, 1390 |
| Number of properties | 1 | 0 |
| Semiprimes | 410th | |
| Roman numberals | MCCCLXXXVII | MCCCXC |
| Base 2 | 101011010112 | 101011011102 |
| Base 3 | 12201013 | 12201113 |
| Base 4 | 1112234 | 1112324 |
| Base 5 | 210225 | 210305 |
| Base 6 | 102316 | 102346 |
| Base 7 | 40217 | 40247 |
| Base 8 | 25538 | 25568 |
| Base 9 | 18119 | 18149 |
| Base 10 | 138710 | 139010 |
| Base 11 | 105111 | 105411 |
| Base 12 | 97712 | 97a12 |
| Base 13 | 82913 | 82c13 |
| Base 14 | 71114 | 71414 |
| Base 15 | 62715 | 62a15 |
| Base 16 | 56b16 | 56e16 |