Compare 205991 vs 208129
| Property | 205991 | 208129 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2059911 | 2081291 |
| Prime factorization | 205991 | 208129 |
| Divisors count | 2 | 2 |
| Divisors | 1, 205991 | 1, 208129 |
| Number of properties | 5 | 5 |
| Chen primes | 7717th | |
| Happy primes | 2810th | |
| Harmonic primes | 6981st | |
| Isolated primes | 14183rd | |
| Primes | 18463rd | 18646th |
| Pythagorean primes | 9311th | |
| Twin primes (1st member) | 2211th | |
| Ulam primes | 1331st | 1343rd |
| Roman numberals | ||
| Base 2 | 1100100100101001112 | 1100101101000000012 |
| Base 3 | 1011101200223 | 1011201111113 |
| Base 4 | 3021022134 | 3023100014 |
| Base 5 | 230424315 | 231300045 |
| Base 6 | 42253556 | 42433216 |
| Base 7 | 15153627 | 15245357 |
| Base 8 | 6222478 | 6264018 |
| Base 9 | 3435089 | 3464449 |
| Base 10 | 20599110 | 20812910 |
| Base 11 | 13084511 | 13240911 |
| Base 12 | 9b25b12 | a054112 |
| Base 13 | 729b613 | 7396c13 |
| Base 14 | 550d914 | 55bc514 |
| Base 15 | 4107b15 | 41a0415 |
| Base 16 | 324a716 | 32d0116 |