Compare 20812 vs 20821
| Property | 20812 | 20821 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 22 × 112 × 431 | 471 × 4431 |
| Prime factorization | 2 × 2 × 11 × 11 × 43 | 47 × 443 |
| Divisors count | 18 | 4 |
| Divisors | 1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 1892, 5203, 10406, 20812 | 1, 47, 443, 20821 |
| Number of properties | 0 | 1 |
| Semiprimes | 5283rd | |
| Roman numberals | ||
| Base 2 | 1010001010011002 | 1010001010101012 |
| Base 3 | 10011122113 | 10011200113 |
| Base 4 | 110110304 | 110111114 |
| Base 5 | 11312225 | 11312415 |
| Base 6 | 2402046 | 2402216 |
| Base 7 | 1144517 | 1144637 |
| Base 8 | 505148 | 505258 |
| Base 9 | 314849 | 315049 |
| Base 10 | 2081210 | 2082110 |
| Base 11 | 1470011 | 1470911 |
| Base 12 | 1006412 | 1007112 |
| Base 13 | 961c13 | 962813 |
| Base 14 | 782814 | 783314 |
| Base 15 | 627715 | 628115 |
| Base 16 | 514c16 | 515516 |