Compare 28385 vs 28387
| Property | 28385 | 28387 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 71 × 8111 | 283871 |
| Prime factorization | 5 × 7 × 811 | 28387 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 7, 35, 811, 4055, 5677, 28385 | 1, 28387 |
| Number of properties | 0 | 6 |
| Chen primes | 1503rd | |
| Good primes | 314th | |
| Happy primes | 497th | |
| Isolated primes | 2185th | |
| Primes | 3088th | |
| Sexy primes (1st member) | 908th | |
| Roman numberals | ||
| Base 2 | 1101110111000012 | 1101110111000112 |
| Base 3 | 11022210223 | 11022211013 |
| Base 4 | 123232014 | 123232034 |
| Base 5 | 14020205 | 14020225 |
| Base 6 | 3352256 | 3352316 |
| Base 7 | 1455207 | 1455227 |
| Base 8 | 673418 | 673438 |
| Base 9 | 428389 | 428419 |
| Base 10 | 2838510 | 2838710 |
| Base 11 | 1a36511 | 1a36711 |
| Base 12 | 1451512 | 1451712 |
| Base 13 | cbc613 | cbc813 |
| Base 14 | a4b714 | a4b914 |
| Base 15 | 862515 | 862715 |
| Base 16 | 6ee116 | 6ee316 |