Compare 28397 vs 28409
| Property | 28397 | 28409 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 731 × 3891 | 284091 |
| Prime factorization | 73 × 389 | 28409 |
| Divisors count | 4 | 2 |
| Divisors | 1, 73, 389, 28397 | 1, 28409 |
| Number of properties | 1 | 6 |
| Additive primes | 1413th | |
| Chen primes | 1504th | |
| Primes | 3091st | |
| Pythagorean primes | 1538th | |
| Semiprimes | 7083rd | |
| Sexy primes (2nd member) | 909th | |
| Twin primes (1st member) | 453rd | |
| Roman numberals | ||
| Base 2 | 1101110111011012 | 1101110111110012 |
| Base 3 | 11022212023 | 11022220123 |
| Base 4 | 123232314 | 123233214 |
| Base 5 | 14020425 | 14021145 |
| Base 6 | 3352456 | 3353056 |
| Base 7 | 1455357 | 1455537 |
| Base 8 | 673558 | 673718 |
| Base 9 | 428529 | 428659 |
| Base 10 | 2839710 | 2840910 |
| Base 11 | 1a37611 | 1a38711 |
| Base 12 | 1452512 | 1453512 |
| Base 13 | cc0513 | cc1413 |
| Base 14 | a4c514 | a4d314 |
| Base 15 | 863215 | 863e15 |
| Base 16 | 6eed16 | 6ef916 |