Compare 215981 vs 216641
| Property | 215981 | 216641 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2159811 | 2166411 |
| Prime factorization | 215981 | 216641 |
| Divisors count | 2 | 2 |
| Divisors | 1, 215981 | 1, 216641 |
| Number of properties | 6 | 8 |
| Chen primes | 8043rd | 8058th |
| Good primes | 1061st | |
| Happy primes | 2928th | 2938th |
| Isolated primes | 14741st | |
| Long primes | 7217th | |
| Primes | 19286th | 19332nd |
| Pythagorean primes | 9622nd | 9646th |
| Sexy primes (1st member) | 4573rd | |
| Sexy prime triplets (1st member) | 915th | |
| Twin primes (1st member) | 2292nd | |
| Roman numberals | ||
| Base 2 | 1101001011101011012 | 1101001110010000012 |
| Base 3 | 1012220210223 | 1020000112023 |
| Base 4 | 3102322314 | 3103210014 |
| Base 5 | 234024115 | 234130315 |
| Base 6 | 43435256 | 43505456 |
| Base 7 | 15564537 | 15614157 |
| Base 8 | 6456558 | 6471018 |
| Base 9 | 3582389 | 3601529 |
| Base 10 | 21598110 | 21664110 |
| Base 11 | 1382a711 | 13884711 |
| Base 12 | a4ba512 | a545512 |
| Base 13 | 773cc13 | 777b913 |
| Base 14 | 589d314 | 58d4514 |
| Base 15 | 43edb15 | 442cb15 |
| Base 16 | 34bad16 | 34e4116 |