Compare 1668 vs 1671
| Property | 1668 | 1671 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 31 × 1391 | 31 × 5571 |
| Prime factorization | 2 × 2 × 3 × 139 | 3 × 557 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668 | 1, 3, 557, 1671 |
| Number of properties | 0 | 1 |
| Semiprimes | 480th | |
| Roman numberals | MDCLXVIII | MDCLXXI |
| Base 2 | 110100001002 | 110100001112 |
| Base 3 | 20212103 | 20212203 |
| Base 4 | 1220104 | 1220134 |
| Base 5 | 231335 | 231415 |
| Base 6 | 114206 | 114236 |
| Base 7 | 46027 | 46057 |
| Base 8 | 32048 | 32078 |
| Base 9 | 22539 | 22569 |
| Base 10 | 166810 | 167110 |
| Base 11 | 128711 | 128a11 |
| Base 12 | b7012 | b7312 |
| Base 13 | 9b413 | 9b713 |
| Base 14 | 87214 | 87514 |
| Base 15 | 76315 | 76615 |
| Base 16 | 68416 | 68716 |