Compare 13781 vs 13873
| Property | 13781 | 13873 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 137811 | 138731 |
| Prime factorization | 13781 | 13873 |
| Divisors count | 2 | 2 |
| Divisors | 1, 13781 | 1, 13873 |
| Number of properties | 6 | 12 |
| Centered decagonal primes | 28th | |
| Cousin primes (1st member) | 262nd | |
| Cuban primes 2 | 14th | |
| Emirps | 393rd | 397th |
| Harmonic primes | 587th | |
| Isolated primes | 1119th | 1125th |
| Long primes | 632nd | 637th |
| Lucky primes | 279th | |
| Primes | 1630th | 1638th |
| Prime triplets (1st member) | 132nd | |
| Pythagorean primes | 808th | 812th |
| Sexy primes (1st member) | 520th | |
| Ulam primes | 121st | |
| Roman numberals | ||
| Base 2 | 110101110101012 | 110110001100012 |
| Base 3 | 2002201023 | 2010002113 |
| Base 4 | 31131114 | 31203014 |
| Base 5 | 4201115 | 4204435 |
| Base 6 | 1434456 | 1441216 |
| Base 7 | 551157 | 553067 |
| Base 8 | 327258 | 330618 |
| Base 9 | 208129 | 210249 |
| Base 10 | 1378110 | 1387310 |
| Base 11 | a39911 | a47211 |
| Base 12 | 7b8512 | 804112 |
| Base 13 | 637113 | 641213 |
| Base 14 | 504514 | 50ad14 |
| Base 15 | 413b15 | 419d15 |
| Base 16 | 35d516 | 363116 |