Compare 18661 vs 19139
| Property | 18661 | 19139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 186611 | 191391 |
| Prime factorization | 18661 | 19139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18661 | 1, 19139 |
| Number of properties | 7 | 7 |
| Additive primes | 1011th | |
| Chen primes | 1054th | 1078th |
| Good primes | 249th | |
| Harmonic primes | 785th | |
| Isolated primes | 1482nd | |
| Long primes | 816th | 828th |
| Lucky primes | 348th | |
| Primes | 2131st | 2171st |
| Pythagorean primes | 1057th | |
| Super primes | 321st | |
| Twin primes (1st member) | 329th | |
| Roman numberals | ||
| Base 2 | 1001000111001012 | 1001010110000112 |
| Base 3 | 2211210113 | 2220202123 |
| Base 4 | 102032114 | 102230034 |
| Base 5 | 10441215 | 11030245 |
| Base 6 | 2222216 | 2243356 |
| Base 7 | 1052567 | 1065417 |
| Base 8 | 443458 | 453038 |
| Base 9 | 275349 | 282259 |
| Base 10 | 1866110 | 1913910 |
| Base 11 | 1302511 | 1341a11 |
| Base 12 | a97112 | b0ab12 |
| Base 13 | 865613 | 893313 |
| Base 14 | 6b2d14 | 6d9114 |
| Base 15 | 57e115 | 5a0e15 |
| Base 16 | 48e516 | 4ac316 |