Compare 21031 vs 21039
| Property | 21031 | 21039 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 210311 | 31 × 70131 |
| Prime factorization | 21031 | 3 × 7013 |
| Divisors count | 2 | 4 |
| Divisors | 1, 21031 | 1, 3, 7013, 21039 |
| Number of properties | 3 | 1 |
| Additive primes | 1098th | |
| Isolated primes | 1650th | |
| Primes | 2367th | |
| Semiprimes | 5335th | |
| Roman numberals | ||
| Base 2 | 1010010001001112 | 1010010001011112 |
| Base 3 | 10012112213 | 10012120203 |
| Base 4 | 110202134 | 110202334 |
| Base 5 | 11331115 | 11331245 |
| Base 6 | 2412116 | 2412236 |
| Base 7 | 1152137 | 1152247 |
| Base 8 | 510478 | 510578 |
| Base 9 | 317579 | 317669 |
| Base 10 | 2103110 | 2103910 |
| Base 11 | 1488a11 | 1489711 |
| Base 12 | 1020712 | 1021312 |
| Base 13 | 975a13 | 976513 |
| Base 14 | 794314 | 794b14 |
| Base 15 | 637115 | 637915 |
| Base 16 | 522716 | 522f16 |