Compare 28181 vs 28447
| Property | 28181 | 28447 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 281811 | 284471 |
| Prime factorization | 28181 | 28447 |
| Divisors count | 2 | 2 |
| Divisors | 1, 28181 | 1, 28447 |
| Number of properties | 5 | 3 |
| Chen primes | 1493rd | |
| Harmonic primes | 1147th | 1155th |
| Isolated primes | 2191st | |
| Primes | 3072nd | 3096th |
| Pythagorean primes | 1529th | |
| Twin primes (1st member) | 449th | |
| Roman numberals | ||
| Base 2 | 1101110000101012 | 1101111000111112 |
| Base 3 | 11021222023 | 11100001213 |
| Base 4 | 123201114 | 123301334 |
| Base 5 | 14002115 | 14022425 |
| Base 6 | 3342456 | 3354116 |
| Base 7 | 1451067 | 1456367 |
| Base 8 | 670258 | 674378 |
| Base 9 | 425829 | 430179 |
| Base 10 | 2818110 | 2844710 |
| Base 11 | 1a19a11 | 1a41111 |
| Base 12 | 1438512 | 1456712 |
| Base 13 | ca9a13 | cc4313 |
| Base 14 | a3ad14 | a51d14 |
| Base 15 | 853b15 | 866715 |
| Base 16 | 6e1516 | 6f1f16 |