Compare 28387 vs 28391
| Property | 28387 | 28391 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 283871 | 111 × 291 × 891 |
| Prime factorization | 28387 | 11 × 29 × 89 |
| Divisors count | 2 | 8 |
| Divisors | 1, 28387 | 1, 11, 29, 89, 319, 979, 2581, 28391 |
| Number of properties | 6 | 0 |
| Chen primes | 1503rd | |
| Good primes | 314th | |
| Happy primes | 497th | |
| Isolated primes | 2185th | |
| Primes | 3088th | |
| Sexy primes (1st member) | 908th | |
| Roman numberals | ||
| Base 2 | 1101110111000112 | 1101110111001112 |
| Base 3 | 11022211013 | 11022211123 |
| Base 4 | 123232034 | 123232134 |
| Base 5 | 14020225 | 14020315 |
| Base 6 | 3352316 | 3352356 |
| Base 7 | 1455227 | 1455267 |
| Base 8 | 673438 | 673478 |
| Base 9 | 428419 | 428459 |
| Base 10 | 2838710 | 2839110 |
| Base 11 | 1a36711 | 1a37011 |
| Base 12 | 1451712 | 1451b12 |
| Base 13 | cbc813 | cbcc13 |
| Base 14 | a4b914 | a4bd14 |
| Base 15 | 862715 | 862b15 |
| Base 16 | 6ee316 | 6ee716 |