Compare 28643 vs 28909
| Property | 28643 | 28909 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 286431 | 289091 |
| Prime factorization | 28643 | 28909 |
| Divisors count | 2 | 2 |
| Divisors | 1, 28643 | 1, 28909 |
| Number of properties | 10 | 5 |
| Additive primes | 1424th | |
| Happy primes | 504th | 510th |
| Harmonic primes | 1165th | |
| Isolated primes | 2208th | 2232nd |
| Long primes | 1196th | |
| Primes | 3119th | 3147th |
| Pythagorean primes | 1564th | |
| Safe primes | 255th | |
| Sexy primes (1st member) | 917th | |
| Sophie germain primes | 430th | |
| Super primes | 444th | |
| Ulam primes | 237th | |
| Roman numberals | ||
| Base 2 | 1101111111000112 | 1110000111011012 |
| Base 3 | 11100212123 | 11101222013 |
| Base 4 | 123332034 | 130032314 |
| Base 5 | 14040335 | 14111145 |
| Base 6 | 3403356 | 3415016 |
| Base 7 | 1463367 | 1501667 |
| Base 8 | 677438 | 703558 |
| Base 9 | 432559 | 435819 |
| Base 10 | 2864310 | 2890910 |
| Base 11 | 1a57a11 | 1a7a111 |
| Base 12 | 146ab12 | 1489112 |
| Base 13 | 1006413 | 1020a13 |
| Base 14 | a61d14 | a76d14 |
| Base 15 | 874815 | 887415 |
| Base 16 | 6fe316 | 70ed16 |