Compare 1660 vs 1664
| Property | 1660 | 1664 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 4 | 8 |
| Prime factorization | 22 × 51 × 831 | 27 × 131 |
| Prime factorization | 2 × 2 × 5 × 83 | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 |
| Divisors count | 12 | 16 |
| Divisors | 1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660 | 1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCLX | MDCLXIV |
| Base 2 | 110011111002 | 110100000002 |
| Base 3 | 20211113 | 20211223 |
| Base 4 | 1213304 | 1220004 |
| Base 5 | 231205 | 231245 |
| Base 6 | 114046 | 114126 |
| Base 7 | 45617 | 45657 |
| Base 8 | 31748 | 32008 |
| Base 9 | 22449 | 22489 |
| Base 10 | 166010 | 166410 |
| Base 11 | 127a11 | 128311 |
| Base 12 | b6412 | b6812 |
| Base 13 | 9a913 | 9b013 |
| Base 14 | 86814 | 86c14 |
| Base 15 | 75a15 | 75e15 |
| Base 16 | 67c16 | 68016 |