Compare 18899 vs 19979
| Property | 18899 | 19979 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 188991 | 199791 |
| Prime factorization | 18899 | 19979 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18899 | 1, 19979 |
| Number of properties | 8 | 6 |
| Chen primes | 1065th | |
| Emirps | 589th | |
| Good primes | 246th | |
| Happy primes | 367th | 376th |
| Harmonic primes | 819th | |
| Isolated primes | 1501st | 1578th |
| Long primes | 824th | 864th |
| Primes | 2150th | 2259th |
| Sexy primes (2nd member) | 692nd | |
| Sophie germain primes | 311th | |
| Roman numberals | ||
| Base 2 | 1001001110100112 | 1001110000010112 |
| Base 3 | 2212202223 | 10001012223 |
| Base 4 | 102131034 | 103200234 |
| Base 5 | 11010445 | 11144045 |
| Base 6 | 2232556 | 2322556 |
| Base 7 | 1060467 | 1121517 |
| Base 8 | 447238 | 470138 |
| Base 9 | 278289 | 303589 |
| Base 10 | 1889910 | 1997910 |
| Base 11 | 1322111 | 1401311 |
| Base 12 | ab2b12 | b68b12 |
| Base 13 | 87aa13 | 912b13 |
| Base 14 | 6c5d14 | 73d114 |
| Base 15 | 58ee15 | 5dbe15 |
| Base 16 | 49d316 | 4e0b16 |