Compare 81409 vs 81509
| Property | 81409 | 81509 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 814091 | 815091 |
| Prime factorization | 81409 | 81509 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81409 | 1, 81509 |
| Number of properties | 5 | 7 |
| Additive primes | 3311th | |
| Chen primes | 3600th | |
| Harmonic primes | 3007th | |
| Isolated primes | 5915th | 5920th |
| Long primes | 3026th | |
| Primes | 7966th | 7971st |
| Proth primes | 92nd | |
| Pythagorean primes | 3969th | 3972nd |
| Sophie germain primes | 989th | |
| Roman numberals | ||
| Base 2 | 100111110000000012 | 100111110011001012 |
| Base 3 | 110102000113 | 110102102123 |
| Base 4 | 1033200014 | 1033212114 |
| Base 5 | 101011145 | 101020145 |
| Base 6 | 14245216 | 14252056 |
| Base 7 | 4562267 | 4564317 |
| Base 8 | 2370018 | 2371458 |
| Base 9 | 1336049 | 1337259 |
| Base 10 | 8140910 | 8150910 |
| Base 11 | 5618911 | 5626a11 |
| Base 12 | 3b14112 | 3b20512 |
| Base 13 | 2b09313 | 2b13c13 |
| Base 14 | 2194d14 | 219c114 |
| Base 15 | 191c415 | 1923e15 |
| Base 16 | 13e0116 | 13e6516 |