Compare 6639 vs 6640
| Property | 6639 | 6640 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 6 |
| Prime factorization | 31 × 22131 | 24 × 51 × 831 |
| Prime factorization | 3 × 2213 | 2 × 2 × 2 × 2 × 5 × 83 |
| Divisors count | 4 | 20 |
| Divisors | 1, 3, 2213, 6639 | 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640 |
| Number of properties | 1 | 0 |
| Semiprimes | 1786th | |
| Roman numberals | ||
| Base 2 | 11001111011112 | 11001111100002 |
| Base 3 | 1000022203 | 1000022213 |
| Base 4 | 12132334 | 12133004 |
| Base 5 | 2030245 | 2030305 |
| Base 6 | 504236 | 504246 |
| Base 7 | 252337 | 252347 |
| Base 8 | 147578 | 147608 |
| Base 9 | 100869 | 100879 |
| Base 10 | 663910 | 664010 |
| Base 11 | 4a9611 | 4a9711 |
| Base 12 | 3a1312 | 3a1412 |
| Base 13 | 303913 | 303a13 |
| Base 14 | 25c314 | 25c414 |
| Base 15 | 1e7915 | 1e7a15 |
| Base 16 | 19ef16 | 19f016 |