Compare 201919 vs 201997
| Property | 201919 | 201997 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2019191 | 2019971 |
| Prime factorization | 201919 | 201997 |
| Divisors count | 2 | 2 |
| Divisors | 1, 201919 | 1, 201997 |
| Number of properties | 5 | 4 |
| Chen primes | 7585th | |
| Cousin primes (1st member) | 2154th | 2155th |
| Harmonic primes | 6809th | |
| Isolated primes | 13795th | 13803rd |
| Primes | 18140th | 18148th |
| Pythagorean primes | 9060th | |
| Roman numberals | ||
| Base 2 | 1100010100101111112 | 1100010101000011012 |
| Base 3 | 1010202221113 | 1010210021013 |
| Base 4 | 3011023334 | 3011100314 |
| Base 5 | 224301345 | 224304425 |
| Base 6 | 41544516 | 41551016 |
| Base 7 | 15004547 | 15006257 |
| Base 8 | 6122778 | 6124158 |
| Base 9 | 3368749 | 3370719 |
| Base 10 | 20191910 | 20199710 |
| Base 11 | 12878311 | 12884411 |
| Base 12 | 98a2712 | 98a9112 |
| Base 13 | 70ba313 | 70c3313 |
| Base 14 | 5382b14 | 5388514 |
| Base 15 | 3ec6415 | 3ecb715 |
| Base 16 | 314bf16 | 3150d16 |