Compare 28387 vs 28399
| Property | 28387 | 28399 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 283871 | 71 × 40571 |
| Prime factorization | 28387 | 7 × 4057 |
| Divisors count | 2 | 4 |
| Divisors | 1, 28387 | 1, 7, 4057, 28399 |
| Number of properties | 6 | 1 |
| Chen primes | 1503rd | |
| Good primes | 314th | |
| Happy primes | 497th | |
| Isolated primes | 2185th | |
| Primes | 3088th | |
| Semiprimes | 7084th | |
| Sexy primes (1st member) | 908th | |
| Roman numberals | ||
| Base 2 | 1101110111000112 | 1101110111011112 |
| Base 3 | 11022211013 | 11022212113 |
| Base 4 | 123232034 | 123232334 |
| Base 5 | 14020225 | 14020445 |
| Base 6 | 3352316 | 3352516 |
| Base 7 | 1455227 | 1455407 |
| Base 8 | 673438 | 673578 |
| Base 9 | 428419 | 428549 |
| Base 10 | 2838710 | 2839910 |
| Base 11 | 1a36711 | 1a37811 |
| Base 12 | 1451712 | 1452712 |
| Base 13 | cbc813 | cc0713 |
| Base 14 | a4b914 | a4c714 |
| Base 15 | 862715 | 863415 |
| Base 16 | 6ee316 | 6eef16 |