Compare 28406 vs 28409
| Property | 28406 | 28409 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 71 × 20291 | 284091 |
| Prime factorization | 2 × 7 × 2029 | 28409 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 7, 14, 2029, 4058, 14203, 28406 | 1, 28409 |
| Number of properties | 0 | 6 |
| Additive primes | 1413th | |
| Chen primes | 1504th | |
| Primes | 3091st | |
| Pythagorean primes | 1538th | |
| Sexy primes (2nd member) | 909th | |
| Twin primes (1st member) | 453rd | |
| Roman numberals | ||
| Base 2 | 1101110111101102 | 1101110111110012 |
| Base 3 | 11022220023 | 11022220123 |
| Base 4 | 123233124 | 123233214 |
| Base 5 | 14021115 | 14021145 |
| Base 6 | 3353026 | 3353056 |
| Base 7 | 1455507 | 1455537 |
| Base 8 | 673668 | 673718 |
| Base 9 | 428629 | 428659 |
| Base 10 | 2840610 | 2840910 |
| Base 11 | 1a38411 | 1a38711 |
| Base 12 | 1453212 | 1453512 |
| Base 13 | cc1113 | cc1413 |
| Base 14 | a4d014 | a4d314 |
| Base 15 | 863b15 | 863e15 |
| Base 16 | 6ef616 | 6ef916 |