Compare 28409 vs 28643
| Property | 28409 | 28643 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 284091 | 286431 |
| Prime factorization | 28409 | 28643 |
| Divisors count | 2 | 2 |
| Divisors | 1, 28409 | 1, 28643 |
| Number of properties | 6 | 10 |
| Additive primes | 1413th | 1424th |
| Chen primes | 1504th | |
| Happy primes | 504th | |
| Harmonic primes | 1165th | |
| Isolated primes | 2208th | |
| Primes | 3091st | 3119th |
| Pythagorean primes | 1538th | |
| Safe primes | 255th | |
| Sexy primes (1st member) | 917th | |
| Sexy primes (2nd member) | 909th | |
| Sophie germain primes | 430th | |
| Super primes | 444th | |
| Twin primes (1st member) | 453rd | |
| Ulam primes | 237th | |
| Roman numberals | ||
| Base 2 | 1101110111110012 | 1101111111000112 |
| Base 3 | 11022220123 | 11100212123 |
| Base 4 | 123233214 | 123332034 |
| Base 5 | 14021145 | 14040335 |
| Base 6 | 3353056 | 3403356 |
| Base 7 | 1455537 | 1463367 |
| Base 8 | 673718 | 677438 |
| Base 9 | 428659 | 432559 |
| Base 10 | 2840910 | 2864310 |
| Base 11 | 1a38711 | 1a57a11 |
| Base 12 | 1453512 | 146ab12 |
| Base 13 | cc1413 | 1006413 |
| Base 14 | a4d314 | a61d14 |
| Base 15 | 863e15 | 874815 |
| Base 16 | 6ef916 | 6fe316 |