Compare 81806 vs 81809
| Property | 81806 | 81809 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 4 |
| Prime factorization | 21 × 409031 | 71 × 131 × 291 × 311 |
| Prime factorization | 2 × 40903 | 7 × 13 × 29 × 31 |
| Divisors count | 4 | 16 |
| Divisors | 1, 2, 40903, 81806 | 1, 7, 13, 29, 31, 91, 203, 217, 377, 403, 899, 2639, 2821, 6293, 11687, 81809 |
| Number of properties | 1 | 0 |
| Semiprimes | 19311th | |
| Roman numberals | ||
| Base 2 | 100111111100011102 | 100111111100100012 |
| Base 3 | 110110122123 | 110110122223 |
| Base 4 | 1033320324 | 1033321014 |
| Base 5 | 101042115 | 101042145 |
| Base 6 | 14304226 | 14304256 |
| Base 7 | 4603347 | 4603407 |
| Base 8 | 2376168 | 2376218 |
| Base 9 | 1341859 | 1341889 |
| Base 10 | 8180610 | 8180910 |
| Base 11 | 5650a11 | 5651211 |
| Base 12 | 3b41212 | 3b41512 |
| Base 13 | 2b30a13 | 2b31013 |
| Base 14 | 21b5414 | 21b5714 |
| Base 15 | 1938b15 | 1938e15 |
| Base 16 | 13f8e16 | 13f9116 |