Compare 6643 vs 6649
| Property | 6643 | 6649 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 71 × 131 × 731 | 611 × 1091 |
| Prime factorization | 7 × 13 × 73 | 61 × 109 |
| Divisors count | 8 | 4 |
| Divisors | 1, 7, 13, 73, 91, 511, 949, 6643 | 1, 61, 109, 6649 |
| Number of properties | 0 | 1 |
| Semiprimes | 1789th | |
| Roman numberals | ||
| Base 2 | 11001111100112 | 11001111110012 |
| Base 3 | 1000100013 | 1000100213 |
| Base 4 | 12133034 | 12133214 |
| Base 5 | 2030335 | 2030445 |
| Base 6 | 504316 | 504416 |
| Base 7 | 252407 | 252467 |
| Base 8 | 147638 | 147718 |
| Base 9 | 101019 | 101079 |
| Base 10 | 664310 | 664910 |
| Base 11 | 4a9a11 | 4aa511 |
| Base 12 | 3a1712 | 3a2112 |
| Base 13 | 304013 | 304613 |
| Base 14 | 25c714 | 25cd14 |
| Base 15 | 1e7d15 | 1e8415 |
| Base 16 | 19f316 | 19f916 |