Compare 662 vs 681
| Property | 662 | 681 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 3311 | 31 × 2271 |
| Prime factorization | 2 × 331 | 3 × 227 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 331, 662 | 1, 3, 227, 681 |
| Number of properties | 1 | 1 |
| Semiprimes | 198th | 204th |
| Roman numberals | DCLXII | DCLXXXI |
| Base 2 | 10100101102 | 10101010012 |
| Base 3 | 2201123 | 2210203 |
| Base 4 | 221124 | 222214 |
| Base 5 | 101225 | 102115 |
| Base 6 | 30226 | 30536 |
| Base 7 | 16347 | 16627 |
| Base 8 | 12268 | 12518 |
| Base 9 | 8159 | 8369 |
| Base 10 | 66210 | 68110 |
| Base 11 | 55211 | 56a11 |
| Base 12 | 47212 | 48912 |
| Base 13 | 3bc13 | 40513 |
| Base 14 | 35414 | 36914 |
| Base 15 | 2e215 | 30615 |
| Base 16 | 29616 | 2a916 |