Compare 81421 vs 81839
| Property | 81421 | 81839 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 814211 | 818391 |
| Prime factorization | 81421 | 81839 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81421 | 1, 81839 |
| Number of properties | 6 | 6 |
| Additive primes | 3324th | |
| Chen primes | 3609th | |
| Happy primes | 1236th | 1239th |
| Harmonic primes | 3008th | |
| Isolated primes | 5916th | 5945th |
| Lucky primes | 1073rd | |
| Primes | 7967th | 8002nd |
| Pythagorean primes | 3970th | |
| Sophie germain primes | 994th | |
| Roman numberals | ||
| Base 2 | 100111110000011012 | 100111111101011112 |
| Base 3 | 110102001213 | 110110210023 |
| Base 4 | 1033200314 | 1033322334 |
| Base 5 | 101011415 | 101043245 |
| Base 6 | 14245416 | 14305156 |
| Base 7 | 4562447 | 4604127 |
| Base 8 | 2370158 | 2376578 |
| Base 9 | 1336179 | 1342329 |
| Base 10 | 8142110 | 8183910 |
| Base 11 | 5619a11 | 5653a11 |
| Base 12 | 3b15112 | 3b43b12 |
| Base 13 | 2b0a213 | 2b33413 |
| Base 14 | 2195b14 | 21b7914 |
| Base 15 | 191d115 | 193ae15 |
| Base 16 | 13e0d16 | 13faf16 |