Compare 1655 vs 1664
| Property | 1655 | 1664 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 8 |
| Prime factorization | 51 × 3311 | 27 × 131 |
| Prime factorization | 5 × 331 | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 |
| Divisors count | 4 | 16 |
| Divisors | 1, 5, 331, 1655 | 1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664 |
| Number of properties | 1 | 0 |
| Semiprimes | 477th | |
| Roman numberals | MDCLV | MDCLXIV |
| Base 2 | 110011101112 | 110100000002 |
| Base 3 | 20210223 | 20211223 |
| Base 4 | 1213134 | 1220004 |
| Base 5 | 231105 | 231245 |
| Base 6 | 113556 | 114126 |
| Base 7 | 45537 | 45657 |
| Base 8 | 31678 | 32008 |
| Base 9 | 22389 | 22489 |
| Base 10 | 165510 | 166410 |
| Base 11 | 127511 | 128311 |
| Base 12 | b5b12 | b6812 |
| Base 13 | 9a413 | 9b013 |
| Base 14 | 86314 | 86c14 |
| Base 15 | 75515 | 75e15 |
| Base 16 | 67716 | 68016 |