Compare 28181 vs 28409
| Property | 28181 | 28409 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 281811 | 284091 |
| Prime factorization | 28181 | 28409 |
| Divisors count | 2 | 2 |
| Divisors | 1, 28181 | 1, 28409 |
| Number of properties | 5 | 6 |
| Additive primes | 1413th | |
| Chen primes | 1493rd | 1504th |
| Harmonic primes | 1147th | |
| Primes | 3072nd | 3091st |
| Pythagorean primes | 1529th | 1538th |
| Sexy primes (2nd member) | 909th | |
| Twin primes (1st member) | 449th | 453rd |
| Roman numberals | ||
| Base 2 | 1101110000101012 | 1101110111110012 |
| Base 3 | 11021222023 | 11022220123 |
| Base 4 | 123201114 | 123233214 |
| Base 5 | 14002115 | 14021145 |
| Base 6 | 3342456 | 3353056 |
| Base 7 | 1451067 | 1455537 |
| Base 8 | 670258 | 673718 |
| Base 9 | 425829 | 428659 |
| Base 10 | 2818110 | 2840910 |
| Base 11 | 1a19a11 | 1a38711 |
| Base 12 | 1438512 | 1453512 |
| Base 13 | ca9a13 | cc1413 |
| Base 14 | a3ad14 | a4d314 |
| Base 15 | 853b15 | 863e15 |
| Base 16 | 6e1516 | 6ef916 |