Compare 66980 vs 66989
| Property | 66980 | 66989 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 22 × 51 × 171 × 1971 | 131 × 51531 |
| Prime factorization | 2 × 2 × 5 × 17 × 197 | 13 × 5153 |
| Divisors count | 24 | 4 |
| Divisors | 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 788, 985, 1970, 3349, 3940, 6698, 13396, 16745, 33490, 66980 | 1, 13, 5153, 66989 |
| Number of properties | 0 | 1 |
| Semiprimes | 15994th | |
| Roman numberals | ||
| Base 2 | 100000101101001002 | 100000101101011012 |
| Base 3 | 101012122023 | 101012200023 |
| Base 4 | 1001122104 | 1001122314 |
| Base 5 | 41204105 | 41204245 |
| Base 6 | 12340326 | 12340456 |
| Base 7 | 3661647 | 3662067 |
| Base 8 | 2026448 | 2026558 |
| Base 9 | 1117829 | 1118029 |
| Base 10 | 6698010 | 6698910 |
| Base 11 | 4636111 | 4636a11 |
| Base 12 | 3291812 | 3292512 |
| Base 13 | 2464413 | 2465013 |
| Base 14 | 1a5a414 | 1a5ad14 |
| Base 15 | 14ca515 | 14cae15 |
| Base 16 | 105a416 | 105ad16 |