Compare 21799 vs 21809
| Property | 21799 | 21809 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 217991 | 1131 × 1931 |
| Prime factorization | 21799 | 113 × 193 |
| Divisors count | 2 | 4 |
| Divisors | 1, 21799 | 1, 113, 193, 21809 |
| Number of properties | 3 | 1 |
| Cousin primes (1st member) | 371st | |
| Isolated primes | 1704th | |
| Primes | 2445th | |
| Semiprimes | 5510th | |
| Roman numberals | ||
| Base 2 | 1010101001001112 | 1010101001100012 |
| Base 3 | 10022201013 | 10022202023 |
| Base 4 | 111102134 | 111103014 |
| Base 5 | 11441445 | 11442145 |
| Base 6 | 2445316 | 2445456 |
| Base 7 | 1203617 | 1204047 |
| Base 8 | 524478 | 524618 |
| Base 9 | 328119 | 328229 |
| Base 10 | 2179910 | 2180910 |
| Base 11 | 1541811 | 1542711 |
| Base 12 | 1074712 | 1075512 |
| Base 13 | 9bcb13 | 9c0813 |
| Base 14 | 7d3114 | 7d3b14 |
| Base 15 | 66d415 | 66de15 |
| Base 16 | 552716 | 553116 |