Compare 161921 vs 163019
| Property | 161921 | 163019 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1619211 | 1630191 |
| Prime factorization | 161921 | 163019 |
| Divisors count | 2 | 2 |
| Divisors | 1, 161921 | 1, 163019 |
| Number of properties | 5 | 6 |
| Chen primes | 6329th | 6368th |
| Emirps | 3295th | |
| Harmonic primes | 5564th | |
| Long primes | 5576th | |
| Primes | 14844th | 14935th |
| Pythagorean primes | 7400th | |
| Safe primes | 989th | |
| Twin primes (1st member) | 1821st | 1829th |
| Roman numberals | ||
| Base 2 | 1001111000100000012 | 1001111100110010112 |
| Base 3 | 220200100023 | 220211212023 |
| Base 4 | 2132020014 | 2133030234 |
| Base 5 | 201401415 | 202040345 |
| Base 6 | 32453456 | 32544156 |
| Base 7 | 12430347 | 12461637 |
| Base 8 | 4742018 | 4763138 |
| Base 9 | 2661029 | 2675529 |
| Base 10 | 16192110 | 16301910 |
| Base 11 | 10072111 | 10152a11 |
| Base 12 | 7985512 | 7a40b12 |
| Base 13 | 5891613 | 5927c13 |
| Base 14 | 4301b14 | 435a314 |
| Base 15 | 32e9b15 | 3347e15 |
| Base 16 | 2788116 | 27ccb16 |