Compare 20980 vs 20991
| Property | 20980 | 20991 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 51 × 10491 | 31 × 69971 |
| Prime factorization | 2 × 2 × 5 × 1049 | 3 × 6997 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 5, 10, 20, 1049, 2098, 4196, 5245, 10490, 20980 | 1, 3, 6997, 20991 |
| Number of properties | 0 | 1 |
| Semiprimes | 5325th | |
| Roman numberals | ||
| Base 2 | 1010001111101002 | 1010001111111112 |
| Base 3 | 10012100013 | 10012101103 |
| Base 4 | 110133104 | 110133334 |
| Base 5 | 11324105 | 11324315 |
| Base 6 | 2410446 | 2411036 |
| Base 7 | 1151117 | 1151257 |
| Base 8 | 507648 | 507778 |
| Base 9 | 317019 | 317139 |
| Base 10 | 2098010 | 2099110 |
| Base 11 | 1484311 | 1485311 |
| Base 12 | 1018412 | 1019312 |
| Base 13 | 971b13 | 972913 |
| Base 14 | 790814 | 791514 |
| Base 15 | 633a15 | 634615 |
| Base 16 | 51f416 | 51ff16 |