Compare 161921 vs 161923
| Property | 161921 | 161923 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1619211 | 1619231 |
| Prime factorization | 161921 | 161923 |
| Divisors count | 2 | 2 |
| Divisors | 1, 161921 | 1, 161923 |
| Number of properties | 5 | 4 |
| Chen primes | 6329th | |
| Harmonic primes | 5564th | 5565th |
| Lucky primes | 1918th | |
| Primes | 14844th | 14845th |
| Pythagorean primes | 7400th | |
| Twin primes (1st member) | 1821st | |
| Twin primes (2nd member) | 1821st | |
| Roman numberals | ||
| Base 2 | 1001111000100000012 | 1001111000100000112 |
| Base 3 | 220200100023 | 220200100113 |
| Base 4 | 2132020014 | 2132020034 |
| Base 5 | 201401415 | 201401435 |
| Base 6 | 32453456 | 32453516 |
| Base 7 | 12430347 | 12430367 |
| Base 8 | 4742018 | 4742038 |
| Base 9 | 2661029 | 2661049 |
| Base 10 | 16192110 | 16192310 |
| Base 11 | 10072111 | 10072311 |
| Base 12 | 7985512 | 7985712 |
| Base 13 | 5891613 | 5891813 |
| Base 14 | 4301b14 | 4301d14 |
| Base 15 | 32e9b15 | 32e9d15 |
| Base 16 | 2788116 | 2788316 |