Compare 21247 vs 21253
| Property | 21247 | 21253 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 212471 | 531 × 4011 |
| Prime factorization | 21247 | 53 × 401 |
| Divisors count | 2 | 4 |
| Divisors | 1, 21247 | 1, 53, 401, 21253 |
| Number of properties | 3 | 1 |
| Isolated primes | 1667th | |
| Long primes | 907th | |
| Primes | 2388th | |
| Semiprimes | 5384th | |
| Roman numberals | ||
| Base 2 | 1010010111111112 | 1010011000001012 |
| Base 3 | 10020102213 | 10020110113 |
| Base 4 | 110233334 | 110300114 |
| Base 5 | 11344425 | 11400035 |
| Base 6 | 2422116 | 2422216 |
| Base 7 | 1156427 | 1156517 |
| Base 8 | 513778 | 514058 |
| Base 9 | 321279 | 321349 |
| Base 10 | 2124710 | 2125310 |
| Base 11 | 14a6611 | 14a7111 |
| Base 12 | 1036712 | 1037112 |
| Base 13 | 989513 | 989b13 |
| Base 14 | 7a5914 | 7a6114 |
| Base 15 | 646715 | 646d15 |
| Base 16 | 52ff16 | 530516 |