Compare 1681 vs 1683
| Property | 1681 | 1683 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 412 | 32 × 111 × 171 |
| Prime factorization | 41 × 41 | 3 × 3 × 11 × 17 |
| Divisors count | 3 | 12 |
| Divisors | 1, 41, 1681 | 1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683 |
| Number of properties | 1 | 0 |
| Semiprimes | 484th | |
| Roman numberals | MDCLXXXI | MDCLXXXIII |
| Base 2 | 110100100012 | 110100100112 |
| Base 3 | 20220213 | 20221003 |
| Base 4 | 1221014 | 1221034 |
| Base 5 | 232115 | 232135 |
| Base 6 | 114416 | 114436 |
| Base 7 | 46217 | 46237 |
| Base 8 | 32218 | 32238 |
| Base 9 | 22679 | 22709 |
| Base 10 | 168110 | 168310 |
| Base 11 | 129911 | 12a011 |
| Base 12 | b8112 | b8312 |
| Base 13 | 9c413 | 9c613 |
| Base 14 | 88114 | 88314 |
| Base 15 | 77115 | 77315 |
| Base 16 | 69116 | 69316 |