Compare 18661 vs 19009
| Property | 18661 | 19009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 186611 | 190091 |
| Prime factorization | 18661 | 19009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18661 | 1, 19009 |
| Number of properties | 7 | 7 |
| Additive primes | 1009th | |
| Chen primes | 1054th | 1071st |
| Cousin primes (1st member) | 336th | |
| Isolated primes | 1482nd | 1507th |
| Long primes | 816th | |
| Lucky primes | 348th | 352nd |
| Primes | 2131st | 2160th |
| Pythagorean primes | 1057th | 1070th |
| Super primes | 321st | |
| Roman numberals | ||
| Base 2 | 1001000111001012 | 1001010010000012 |
| Base 3 | 2211210113 | 2220020013 |
| Base 4 | 102032114 | 102210014 |
| Base 5 | 10441215 | 11020145 |
| Base 6 | 2222216 | 2240016 |
| Base 7 | 1052567 | 1062647 |
| Base 8 | 443458 | 451018 |
| Base 9 | 275349 | 280619 |
| Base 10 | 1866110 | 1900910 |
| Base 11 | 1302511 | 1331111 |
| Base 12 | a97112 | b00112 |
| Base 13 | 865613 | 886313 |
| Base 14 | 6b2d14 | 6cdb14 |
| Base 15 | 57e115 | 597415 |
| Base 16 | 48e516 | 4a4116 |