Compare 18661 vs 19309
| Property | 18661 | 19309 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 186611 | 193091 |
| Prime factorization | 18661 | 19309 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18661 | 1, 19309 |
| Number of properties | 7 | 6 |
| Chen primes | 1054th | |
| Isolated primes | 1482nd | 1528th |
| Long primes | 816th | 835th |
| Lucky primes | 348th | 357th |
| Primes | 2131st | 2189th |
| Pythagorean primes | 1057th | 1086th |
| Super primes | 321st | |
| Ulam primes | 158th | |
| Roman numberals | ||
| Base 2 | 1001000111001012 | 1001011011011012 |
| Base 3 | 2211210113 | 2221110113 |
| Base 4 | 102032114 | 102312314 |
| Base 5 | 10441215 | 11042145 |
| Base 6 | 2222216 | 2252216 |
| Base 7 | 1052567 | 1102037 |
| Base 8 | 443458 | 455558 |
| Base 9 | 275349 | 284349 |
| Base 10 | 1866110 | 1930910 |
| Base 11 | 1302511 | 1356411 |
| Base 12 | a97112 | b21112 |
| Base 13 | 865613 | 8a3413 |
| Base 14 | 6b2d14 | 707314 |
| Base 15 | 57e115 | 5ac415 |
| Base 16 | 48e516 | 4b6d16 |