Compare 28387 vs 30491
| Property | 28387 | 30491 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 283871 | 304911 |
| Prime factorization | 28387 | 30491 |
| Divisors count | 2 | 2 |
| Divisors | 1, 28387 | 1, 30491 |
| Number of properties | 6 | 10 |
| Additive primes | 1490th | |
| Chen primes | 1503rd | 1573rd |
| Emirps | 642nd | |
| Good primes | 314th | 326th |
| Happy primes | 497th | |
| Harmonic primes | 1228th | |
| Isolated primes | 2185th | |
| Long primes | 1250th | |
| Primes | 3088th | 3291st |
| Prime triplets (1st member) | 227th | |
| Sexy primes (1st member) | 908th | 963rd |
| Twin primes (1st member) | 474th | |
| Roman numberals | ||
| Base 2 | 1101110111000112 | 1110111000110112 |
| Base 3 | 11022211013 | 11122110223 |
| Base 4 | 123232034 | 131301234 |
| Base 5 | 14020225 | 14334315 |
| Base 6 | 3352316 | 3530556 |
| Base 7 | 1455227 | 1546167 |
| Base 8 | 673438 | 734338 |
| Base 9 | 428419 | 457389 |
| Base 10 | 2838710 | 3049110 |
| Base 11 | 1a36711 | 209aa11 |
| Base 12 | 1451712 | 1578b12 |
| Base 13 | cbc813 | 10b5613 |
| Base 14 | a4b914 | b17d14 |
| Base 15 | 862715 | 907b15 |
| Base 16 | 6ee316 | 771b16 |