Compare 20897 vs 21221
| Property | 20897 | 21221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 208971 | 212211 |
| Prime factorization | 20897 | 21221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20897 | 1, 21221 |
| Number of properties | 9 | 6 |
| Chen primes | 1156th | 1172nd |
| Good primes | 264th | |
| Harmonic primes | 861st | |
| Isolated primes | 1665th | |
| Long primes | 893rd | |
| Primes | 2350th | 2386th |
| Prime triplets (1st member) | 174th | |
| Pythagorean primes | 1169th | 1184th |
| Sexy primes (1st member) | 713th | 723rd |
| Sophie germain primes | 346th | |
| Twin primes (1st member) | 356th | |
| Roman numberals | ||
| Base 2 | 1010001101000012 | 1010010111001012 |
| Base 3 | 10011222223 | 10020022223 |
| Base 4 | 110122014 | 110232114 |
| Base 5 | 11320425 | 11343415 |
| Base 6 | 2404256 | 2421256 |
| Base 7 | 1146327 | 1156047 |
| Base 8 | 506418 | 513458 |
| Base 9 | 315889 | 320889 |
| Base 10 | 2089710 | 2122110 |
| Base 11 | 1477811 | 14a4211 |
| Base 12 | 1011512 | 1034512 |
| Base 13 | 968613 | 987513 |
| Base 14 | 788914 | 7a3b14 |
| Base 15 | 62d215 | 644b15 |
| Base 16 | 51a116 | 52e516 |