Compare 81689 vs 81929
| Property | 81689 | 81929 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 816891 | 819291 |
| Prime factorization | 81689 | 81929 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81689 | 1, 81929 |
| Number of properties | 4 | 7 |
| Additive primes | 3326th | |
| Chen primes | 3603rd | 3612th |
| Harmonic primes | 3023rd | |
| Isolated primes | 5935th | |
| Primes | 7990th | 8010th |
| Pythagorean primes | 3981st | 3992nd |
| Sophie germain primes | 995th | |
| Twin primes (1st member) | 1031st | |
| Roman numberals | ||
| Base 2 | 100111111000110012 | 101000000000010012 |
| Base 3 | 110110011123 | 110111011023 |
| Base 4 | 1033301214 | 1100000214 |
| Base 5 | 101032245 | 101102045 |
| Base 6 | 14301056 | 14311456 |
| Base 7 | 4601067 | 4606017 |
| Base 8 | 2374318 | 2400118 |
| Base 9 | 1340459 | 1343429 |
| Base 10 | 8168910 | 8192910 |
| Base 11 | 5641311 | 5661111 |
| Base 12 | 3b33512 | 3b4b512 |
| Base 13 | 2b24a13 | 2b3a313 |
| Base 14 | 21aad14 | 21c0114 |
| Base 15 | 1930e15 | 1941e15 |
| Base 16 | 13f1916 | 1400916 |