Compare 201919 vs 201961
| Property | 201919 | 201961 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2019191 | 2019611 |
| Prime factorization | 201919 | 201961 |
| Divisors count | 2 | 2 |
| Divisors | 1, 201919 | 1, 201961 |
| Number of properties | 5 | 4 |
| Additive primes | 7300th | |
| Chen primes | 7585th | |
| Cousin primes (1st member) | 2154th | |
| Harmonic primes | 6809th | |
| Isolated primes | 13795th | 13800th |
| Primes | 18140th | 18145th |
| Pythagorean primes | 9058th | |
| Roman numberals | ||
| Base 2 | 1100010100101111112 | 1100010100111010012 |
| Base 3 | 1010202221113 | 1010210010013 |
| Base 4 | 3011023334 | 3011032214 |
| Base 5 | 224301345 | 224303215 |
| Base 6 | 41544516 | 41550016 |
| Base 7 | 15004547 | 15005447 |
| Base 8 | 6122778 | 6123518 |
| Base 9 | 3368749 | 3370319 |
| Base 10 | 20191910 | 20196110 |
| Base 11 | 12878311 | 12881111 |
| Base 12 | 98a2712 | 98a6112 |
| Base 13 | 70ba313 | 70c0613 |
| Base 14 | 5382b14 | 5385b14 |
| Base 15 | 3ec6415 | 3ec9115 |
| Base 16 | 314bf16 | 314e916 |