Compare 21277 vs 21289
| Property | 21277 | 21289 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 212771 | 611 × 3491 |
| Prime factorization | 21277 | 61 × 349 |
| Divisors count | 2 | 4 |
| Divisors | 1, 21277 | 1, 61, 349, 21289 |
| Number of properties | 6 | 1 |
| Additive primes | 1109th | |
| Harmonic primes | 876th | |
| Isolated primes | 1669th | |
| Primes | 2390th | |
| Pythagorean primes | 1186th | |
| Semiprimes | 5395th | |
| Sexy primes (1st member) | 724th | |
| Roman numberals | ||
| Base 2 | 1010011000111012 | 1010011001010012 |
| Base 3 | 10020120013 | 10020121113 |
| Base 4 | 110301314 | 110302214 |
| Base 5 | 11401025 | 11401245 |
| Base 6 | 2423016 | 2423216 |
| Base 7 | 1160147 | 1160327 |
| Base 8 | 514358 | 514518 |
| Base 9 | 321619 | 321749 |
| Base 10 | 2127710 | 2128910 |
| Base 11 | 14a9311 | 14aa411 |
| Base 12 | 1039112 | 103a112 |
| Base 13 | 98b913 | 98c813 |
| Base 14 | 7a7b14 | 7a8914 |
| Base 15 | 648715 | 649415 |
| Base 16 | 531d16 | 532916 |