Compare 18947 vs 19181
| Property | 18947 | 19181 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 189471 | 191811 |
| Prime factorization | 18947 | 19181 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18947 | 1, 19181 |
| Number of properties | 5 | 7 |
| Additive primes | 1007th | |
| Chen primes | 1068th | 1080th |
| Emirps | 597th | |
| Harmonic primes | 787th | |
| Isolated primes | 1502nd | |
| Long primes | 830th | |
| Primes | 2155th | 2175th |
| Pythagorean primes | 1079th | |
| Safe primes | 185th | |
| Twin primes (1st member) | 330th | |
| Roman numberals | ||
| Base 2 | 1001010000000112 | 1001010111011012 |
| Base 3 | 2212222023 | 2220221023 |
| Base 4 | 102200034 | 102232314 |
| Base 5 | 11012425 | 11032115 |
| Base 6 | 2234156 | 2244456 |
| Base 7 | 1061457 | 1066317 |
| Base 8 | 450038 | 453558 |
| Base 9 | 278829 | 282729 |
| Base 10 | 1894710 | 1918110 |
| Base 11 | 1326511 | 1345811 |
| Base 12 | ab6b12 | b12512 |
| Base 13 | 881613 | 896613 |
| Base 14 | 6c9514 | 6dc114 |
| Base 15 | 593215 | 5a3b15 |
| Base 16 | 4a0316 | 4aed16 |