Compare 1366 vs 1389
| Property | 1366 | 1389 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 6831 | 31 × 4631 |
| Prime factorization | 2 × 683 | 3 × 463 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 683, 1366 | 1, 3, 463, 1389 |
| Number of properties | 1 | 1 |
| Semiprimes | 403rd | 411th |
| Roman numberals | MCCCLXVI | MCCCLXXXIX |
| Base 2 | 101010101102 | 101011011012 |
| Base 3 | 12121213 | 12201103 |
| Base 4 | 1111124 | 1112314 |
| Base 5 | 204315 | 210245 |
| Base 6 | 101546 | 102336 |
| Base 7 | 36617 | 40237 |
| Base 8 | 25268 | 25558 |
| Base 9 | 17779 | 18139 |
| Base 10 | 136610 | 138910 |
| Base 11 | 103211 | 105311 |
| Base 12 | 95a12 | 97912 |
| Base 13 | 81113 | 82b13 |
| Base 14 | 6d814 | 71314 |
| Base 15 | 61115 | 62915 |
| Base 16 | 55616 | 56d16 |