Compare 20887 vs 20897
| Property | 20887 | 20897 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 208871 | 208971 |
| Prime factorization | 20887 | 20897 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20887 | 1, 20897 |
| Number of properties | 3 | 9 |
| Chen primes | 1156th | |
| Good primes | 264th | |
| Harmonic primes | 861st | |
| Isolated primes | 1640th | |
| Long primes | 893rd | |
| Lucky primes | 381st | |
| Primes | 2349th | 2350th |
| Prime triplets (1st member) | 174th | |
| Pythagorean primes | 1169th | |
| Sexy primes (1st member) | 713th | |
| Twin primes (1st member) | 356th | |
| Roman numberals | ||
| Base 2 | 1010001100101112 | 1010001101000012 |
| Base 3 | 10011221213 | 10011222223 |
| Base 4 | 110121134 | 110122014 |
| Base 5 | 11320225 | 11320425 |
| Base 6 | 2404116 | 2404256 |
| Base 7 | 1146167 | 1146327 |
| Base 8 | 506278 | 506418 |
| Base 9 | 315779 | 315889 |
| Base 10 | 2088710 | 2089710 |
| Base 11 | 1476911 | 1477811 |
| Base 12 | 1010712 | 1011512 |
| Base 13 | 967913 | 968613 |
| Base 14 | 787d14 | 788914 |
| Base 15 | 62c715 | 62d215 |
| Base 16 | 519716 | 51a116 |