Compare 20639 vs 20897
| Property | 20639 | 20897 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 206391 | 208971 |
| Prime factorization | 20639 | 20897 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20639 | 1, 20897 |
| Number of properties | 4 | 9 |
| Chen primes | 1143rd | 1156th |
| Good primes | 264th | |
| Happy primes | 384th | |
| Harmonic primes | 861st | |
| Long primes | 893rd | |
| Primes | 2326th | 2350th |
| Prime triplets (1st member) | 174th | |
| Pythagorean primes | 1169th | |
| Sexy primes (1st member) | 713th | |
| Twin primes (1st member) | 351st | 356th |
| Roman numberals | ||
| Base 2 | 1010000100111112 | 1010001101000012 |
| Base 3 | 10010221023 | 10011222223 |
| Base 4 | 110021334 | 110122014 |
| Base 5 | 11300245 | 11320425 |
| Base 6 | 2353156 | 2404256 |
| Base 7 | 1141137 | 1146327 |
| Base 8 | 502378 | 506418 |
| Base 9 | 312729 | 315889 |
| Base 10 | 2063910 | 2089710 |
| Base 11 | 1456311 | 1477811 |
| Base 12 | bb3b12 | 1011512 |
| Base 13 | 951813 | 968613 |
| Base 14 | 774314 | 788914 |
| Base 15 | 61ae15 | 62d215 |
| Base 16 | 509f16 | 51a116 |