Compare 18899 vs 19181
| Property | 18899 | 19181 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 188991 | 191811 |
| Prime factorization | 18899 | 19181 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18899 | 1, 19181 |
| Number of properties | 8 | 7 |
| Chen primes | 1065th | 1080th |
| Emirps | 589th | 597th |
| Good primes | 246th | |
| Happy primes | 367th | |
| Harmonic primes | 787th | |
| Isolated primes | 1501st | |
| Long primes | 824th | 830th |
| Primes | 2150th | 2175th |
| Pythagorean primes | 1079th | |
| Sophie germain primes | 311th | |
| Twin primes (1st member) | 330th | |
| Roman numberals | ||
| Base 2 | 1001001110100112 | 1001010111011012 |
| Base 3 | 2212202223 | 2220221023 |
| Base 4 | 102131034 | 102232314 |
| Base 5 | 11010445 | 11032115 |
| Base 6 | 2232556 | 2244456 |
| Base 7 | 1060467 | 1066317 |
| Base 8 | 447238 | 453558 |
| Base 9 | 278289 | 282729 |
| Base 10 | 1889910 | 1918110 |
| Base 11 | 1322111 | 1345811 |
| Base 12 | ab2b12 | b12512 |
| Base 13 | 87aa13 | 896613 |
| Base 14 | 6c5d14 | 6dc114 |
| Base 15 | 58ee15 | 5a3b15 |
| Base 16 | 49d316 | 4aed16 |