Compare 1666 vs 1672
| Property | 1666 | 1672 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 4 | 5 |
| Prime factorization | 21 × 72 × 171 | 23 × 111 × 191 |
| Prime factorization | 2 × 7 × 7 × 17 | 2 × 2 × 2 × 11 × 19 |
| Divisors count | 12 | 16 |
| Divisors | 1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666 | 1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCLXVI | MDCLXXII |
| Base 2 | 110100000102 | 110100010002 |
| Base 3 | 20212013 | 20212213 |
| Base 4 | 1220024 | 1220204 |
| Base 5 | 231315 | 231425 |
| Base 6 | 114146 | 114246 |
| Base 7 | 46007 | 46067 |
| Base 8 | 32028 | 32108 |
| Base 9 | 22519 | 22579 |
| Base 10 | 166610 | 167210 |
| Base 11 | 128511 | 129011 |
| Base 12 | b6a12 | b7412 |
| Base 13 | 9b213 | 9b813 |
| Base 14 | 87014 | 87614 |
| Base 15 | 76115 | 76715 |
| Base 16 | 68216 | 68816 |