Compare 1662 vs 1666
| Property | 1662 | 1666 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 3 | 4 |
| Prime factorization | 21 × 31 × 2771 | 21 × 72 × 171 |
| Prime factorization | 2 × 3 × 277 | 2 × 7 × 7 × 17 |
| Divisors count | 8 | 12 |
| Divisors | 1, 2, 3, 6, 277, 554, 831, 1662 | 1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCLXII | MDCLXVI |
| Base 2 | 110011111102 | 110100000102 |
| Base 3 | 20211203 | 20212013 |
| Base 4 | 1213324 | 1220024 |
| Base 5 | 231225 | 231315 |
| Base 6 | 114106 | 114146 |
| Base 7 | 45637 | 46007 |
| Base 8 | 31768 | 32028 |
| Base 9 | 22469 | 22519 |
| Base 10 | 166210 | 166610 |
| Base 11 | 128111 | 128511 |
| Base 12 | b6612 | b6a12 |
| Base 13 | 9ab13 | 9b213 |
| Base 14 | 86a14 | 87014 |
| Base 15 | 75c15 | 76115 |
| Base 16 | 67e16 | 68216 |