Compare 163981 vs 164149
| Property | 163981 | 164149 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1639811 | 1641491 |
| Prime factorization | 163981 | 164149 |
| Divisors count | 2 | 2 |
| Divisors | 1, 163981 | 1, 164149 |
| Number of properties | 8 | 7 |
| Emirps | 3320th | 3322nd |
| Happy primes | 2325th | |
| Harmonic primes | 5643rd | |
| Long primes | 5611th | 5616th |
| Lucky primes | 1948th | |
| Primes | 15012th | 15028th |
| Pythagorean primes | 7487th | 7495th |
| Sexy primes (1st member) | 3635th | |
| Sexy prime triplets (1st member) | 751st | |
| Twin primes (2nd member) | 1837th | 1839th |
| Roman numberals | ||
| Base 2 | 1010000000100011012 | 1010000001001101012 |
| Base 3 | 220222211013 | 221000111213 |
| Base 4 | 2200020314 | 2200103114 |
| Base 5 | 202214115 | 202230445 |
| Base 6 | 33031016 | 33035416 |
| Base 7 | 12520367 | 12523667 |
| Base 8 | 5002158 | 5004658 |
| Base 9 | 2688419 | 2701479 |
| Base 10 | 16398110 | 16414910 |
| Base 11 | 10222411 | 10236711 |
| Base 12 | 7aa9112 | 7abb112 |
| Base 13 | 5983c13 | 5993b13 |
| Base 14 | 43a8d14 | 43b6d14 |
| Base 15 | 338c115 | 3398415 |
| Base 16 | 2808d16 | 2813516 |