Compare 81978 vs 81979
| Property | 81978 | 81979 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 31 × 131 × 10511 | 731 × 11231 |
| Prime factorization | 2 × 3 × 13 × 1051 | 73 × 1123 |
| Divisors count | 16 | 4 |
| Divisors | 1, 2, 3, 6, 13, 26, 39, 78, 1051, 2102, 3153, 6306, 13663, 27326, 40989, 81978 | 1, 73, 1123, 81979 |
| Number of properties | 0 | 1 |
| Semiprimes | 19345th | |
| Roman numberals | ||
| Base 2 | 101000000001110102 | 101000000001110112 |
| Base 3 | 110111100203 | 110111100213 |
| Base 4 | 1100003224 | 1100003234 |
| Base 5 | 101104035 | 101104045 |
| Base 6 | 14313106 | 14313116 |
| Base 7 | 4610017 | 4610027 |
| Base 8 | 2400728 | 2400738 |
| Base 9 | 1344069 | 1344079 |
| Base 10 | 8197810 | 8197910 |
| Base 11 | 5665611 | 5665711 |
| Base 12 | 3b53612 | 3b53712 |
| Base 13 | 2b41013 | 2b41113 |
| Base 14 | 21c3814 | 21c3914 |
| Base 15 | 1945315 | 1945415 |
| Base 16 | 1403a16 | 1403b16 |