Compare 21802 vs 21809
| Property | 21802 | 21809 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 111 × 9911 | 1131 × 1931 |
| Prime factorization | 2 × 11 × 991 | 113 × 193 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 11, 22, 991, 1982, 10901, 21802 | 1, 113, 193, 21809 |
| Number of properties | 0 | 1 |
| Semiprimes | 5510th | |
| Roman numberals | ||
| Base 2 | 1010101001010102 | 1010101001100012 |
| Base 3 | 10022201113 | 10022202023 |
| Base 4 | 111102224 | 111103014 |
| Base 5 | 11442025 | 11442145 |
| Base 6 | 2445346 | 2445456 |
| Base 7 | 1203647 | 1204047 |
| Base 8 | 524528 | 524618 |
| Base 9 | 328149 | 328229 |
| Base 10 | 2180210 | 2180910 |
| Base 11 | 1542011 | 1542711 |
| Base 12 | 1074a12 | 1075512 |
| Base 13 | 9c0113 | 9c0813 |
| Base 14 | 7d3414 | 7d3b14 |
| Base 15 | 66d715 | 66de15 |
| Base 16 | 552a16 | 553116 |