Compare 21265 vs 21277
| Property | 21265 | 21277 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 42531 | 212771 |
| Prime factorization | 5 × 4253 | 21277 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 4253, 21265 | 1, 21277 |
| Number of properties | 1 | 6 |
| Additive primes | 1109th | |
| Harmonic primes | 876th | |
| Isolated primes | 1669th | |
| Primes | 2390th | |
| Pythagorean primes | 1186th | |
| Semiprimes | 5390th | |
| Sexy primes (1st member) | 724th | |
| Roman numberals | ||
| Base 2 | 1010011000100012 | 1010011000111012 |
| Base 3 | 10020111213 | 10020120013 |
| Base 4 | 110301014 | 110301314 |
| Base 5 | 11400305 | 11401025 |
| Base 6 | 2422416 | 2423016 |
| Base 7 | 1156667 | 1160147 |
| Base 8 | 514218 | 514358 |
| Base 9 | 321479 | 321619 |
| Base 10 | 2126510 | 2127710 |
| Base 11 | 14a8211 | 14a9311 |
| Base 12 | 1038112 | 1039112 |
| Base 13 | 98aa13 | 98b913 |
| Base 14 | 7a6d14 | 7a7b14 |
| Base 15 | 647a15 | 648715 |
| Base 16 | 531116 | 531d16 |