Compare 28643 vs 28646
| Property | 28643 | 28646 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 286431 | 21 × 143231 |
| Prime factorization | 28643 | 2 × 14323 |
| Divisors count | 2 | 4 |
| Divisors | 1, 28643 | 1, 2, 14323, 28646 |
| Number of properties | 10 | 1 |
| Additive primes | 1424th | |
| Happy primes | 504th | |
| Harmonic primes | 1165th | |
| Isolated primes | 2208th | |
| Primes | 3119th | |
| Safe primes | 255th | |
| Semiprimes | 7131st | |
| Sexy primes (1st member) | 917th | |
| Sophie germain primes | 430th | |
| Super primes | 444th | |
| Ulam primes | 237th | |
| Roman numberals | ||
| Base 2 | 1101111111000112 | 1101111111001102 |
| Base 3 | 11100212123 | 11100212223 |
| Base 4 | 123332034 | 123332124 |
| Base 5 | 14040335 | 14040415 |
| Base 6 | 3403356 | 3403426 |
| Base 7 | 1463367 | 1463427 |
| Base 8 | 677438 | 677468 |
| Base 9 | 432559 | 432589 |
| Base 10 | 2864310 | 2864610 |
| Base 11 | 1a57a11 | 1a58211 |
| Base 12 | 146ab12 | 146b212 |
| Base 13 | 1006413 | 1006713 |
| Base 14 | a61d14 | a62214 |
| Base 15 | 874815 | 874b15 |
| Base 16 | 6fe316 | 6fe616 |