Compare 205991 vs 207139
| Property | 205991 | 207139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2059911 | 2071391 |
| Prime factorization | 205991 | 207139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 205991 | 1, 207139 |
| Number of properties | 5 | 4 |
| Chen primes | 7717th | |
| Happy primes | 2810th | |
| Isolated primes | 14120th | |
| Long primes | 6951st | |
| Primes | 18463rd | 18559th |
| Twin primes (1st member) | 2211th | |
| Ulam primes | 1331st | 1335th |
| Roman numberals | ||
| Base 2 | 1100100100101001112 | 1100101001001000112 |
| Base 3 | 1011101200223 | 1011120102113 |
| Base 4 | 3021022134 | 3022102034 |
| Base 5 | 230424315 | 231120245 |
| Base 6 | 42253556 | 42345516 |
| Base 7 | 15153627 | 15216227 |
| Base 8 | 6222478 | 6244438 |
| Base 9 | 3435089 | 3451249 |
| Base 10 | 20599110 | 20713910 |
| Base 11 | 13084511 | 13169911 |
| Base 12 | 9b25b12 | 9ba5712 |
| Base 13 | 729b613 | 7338a13 |
| Base 14 | 550d914 | 556b914 |
| Base 15 | 4107b15 | 4159415 |
| Base 16 | 324a716 | 3292316 |