Compare 81919 vs 131009
| Property | 81919 | 131009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 819191 | 1310091 |
| Prime factorization | 81919 | 131009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81919 | 1, 131009 |
| Number of properties | 5 | 5 |
| Chen primes | 5286th | |
| Harmonic primes | 3022nd | |
| Isolated primes | 5950th | |
| Primes | 8009th | 12245th |
| Pythagorean primes | 6093rd | |
| Solinas primes | 112th | 116th |
| Super primes | 1008th | |
| Twin primes (1st member) | 1526th | |
| Roman numberals | ||
| Base 2 | 100111111111111112 | 111111111110000012 |
| Base 3 | 110111010013 | 201222010123 |
| Base 4 | 1033333334 | 1333330014 |
| Base 5 | 101101345 | 131430145 |
| Base 6 | 14311316 | 24503056 |
| Base 7 | 4605557 | 10536447 |
| Base 8 | 2377778 | 3777018 |
| Base 9 | 1343319 | 2186359 |
| Base 10 | 8191910 | 13100910 |
| Base 11 | 5660211 | 8a47a11 |
| Base 12 | 3b4a712 | 6399512 |
| Base 13 | 2b39613 | 4782813 |
| Base 14 | 21bd514 | 35a5b14 |
| Base 15 | 1941415 | 28c3e15 |
| Base 16 | 13fff16 | 1ffc116 |