Compare 215981 vs 216133
| Property | 215981 | 216133 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2159811 | 2161331 |
| Prime factorization | 215981 | 216133 |
| Divisors count | 2 | 2 |
| Divisors | 1, 215981 | 1, 216133 |
| Number of properties | 6 | 6 |
| Centered heptagonal primes | 51st | |
| Chen primes | 8043rd | |
| Happy primes | 2928th | |
| Harmonic primes | 7235th | |
| Isolated primes | 14715th | |
| Long primes | 7217th | |
| Primes | 19286th | 19298th |
| Pythagorean primes | 9622nd | 9626th |
| Sexy primes (2nd member) | 4568th | |
| Twin primes (1st member) | 2292nd | |
| Roman numberals | ||
| Base 2 | 1101001011101011012 | 1101001100010001012 |
| Base 3 | 1012220210223 | 1012221102213 |
| Base 4 | 3102322314 | 3103010114 |
| Base 5 | 234024115 | 234040135 |
| Base 6 | 43435256 | 43443416 |
| Base 7 | 15564537 | 15600617 |
| Base 8 | 6456558 | 6461058 |
| Base 9 | 3582389 | 3584279 |
| Base 10 | 21598110 | 21613310 |
| Base 11 | 1382a711 | 13842511 |
| Base 12 | a4ba512 | a50b112 |
| Base 13 | 773cc13 | 774b813 |
| Base 14 | 589d314 | 58aa114 |
| Base 15 | 43edb15 | 4408d15 |
| Base 16 | 34bad16 | 34c4516 |