Compare 161639 vs 161921
| Property | 161639 | 161921 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1616391 | 1619211 |
| Prime factorization | 161639 | 161921 |
| Divisors count | 2 | 2 |
| Divisors | 1, 161639 | 1, 161921 |
| Number of properties | 6 | 5 |
| Chen primes | 6320th | 6329th |
| Emirps | 3262nd | |
| Harmonic primes | 5564th | |
| Primes | 14821st | 14844th |
| Pythagorean primes | 7400th | |
| Safe primes | 985th | |
| Super primes | 1736th | |
| Twin primes (1st member) | 1816th | 1821st |
| Roman numberals | ||
| Base 2 | 1001110111011001112 | 1001111000100000012 |
| Base 3 | 220122011223 | 220200100023 |
| Base 4 | 2131312134 | 2132020014 |
| Base 5 | 201330245 | 201401415 |
| Base 6 | 32441556 | 32453456 |
| Base 7 | 12421527 | 12430347 |
| Base 8 | 4735478 | 4742018 |
| Base 9 | 2656489 | 2661029 |
| Base 10 | 16163910 | 16192110 |
| Base 11 | 10049511 | 10072111 |
| Base 12 | 7965b12 | 7985512 |
| Base 13 | 5875a13 | 5891613 |
| Base 14 | 42c9914 | 4301b14 |
| Base 15 | 32d5e15 | 32e9b15 |
| Base 16 | 2776716 | 2788116 |