Compare 66978 vs 66989
| Property | 66978 | 66989 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 21 × 32 × 612 | 131 × 51531 |
| Prime factorization | 2 × 3 × 3 × 61 × 61 | 13 × 5153 |
| Divisors count | 18 | 4 |
| Divisors | 1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 3721, 7442, 11163, 22326, 33489, 66978 | 1, 13, 5153, 66989 |
| Number of properties | 0 | 1 |
| Semiprimes | 15994th | |
| Roman numberals | ||
| Base 2 | 100000101101000102 | 100000101101011012 |
| Base 3 | 101012122003 | 101012200023 |
| Base 4 | 1001122024 | 1001122314 |
| Base 5 | 41204035 | 41204245 |
| Base 6 | 12340306 | 12340456 |
| Base 7 | 3661627 | 3662067 |
| Base 8 | 2026428 | 2026558 |
| Base 9 | 1117809 | 1118029 |
| Base 10 | 6697810 | 6698910 |
| Base 11 | 4635a11 | 4636a11 |
| Base 12 | 3291612 | 3292512 |
| Base 13 | 2464213 | 2465013 |
| Base 14 | 1a5a214 | 1a5ad14 |
| Base 15 | 14ca315 | 14cae15 |
| Base 16 | 105a216 | 105ad16 |