Compare 1373 vs 1399
| Property | 1373 | 1399 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13731 | 13991 |
| Prime factorization | 1373 | 1399 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1373 | 1, 1399 |
| Number of properties | 7 | 6 |
| Chen primes | 145th | |
| Emirps | 65th | |
| Good primes | 52nd | |
| Happy primes | 43rd | |
| Harmonic primes | 76th | |
| Isolated primes | 129th | 131st |
| Left-truncatable primes | 58th | |
| Primes | 220th | 222nd |
| Pythagorean primes | 108th | |
| Sexy primes (2nd member) | 96th | |
| Sexy prime triplets (3rd member) | 36th | |
| Roman numberals | MCCCLXXIII | MCCCXCIX |
| Base 2 | 101010111012 | 101011101112 |
| Base 3 | 12122123 | 12202113 |
| Base 4 | 1111314 | 1113134 |
| Base 5 | 204435 | 210445 |
| Base 6 | 102056 | 102516 |
| Base 7 | 40017 | 40367 |
| Base 8 | 25358 | 25678 |
| Base 9 | 17859 | 18249 |
| Base 10 | 137310 | 139910 |
| Base 11 | 103911 | 106211 |
| Base 12 | 96512 | 98712 |
| Base 13 | 81813 | 83813 |
| Base 14 | 70114 | 71d14 |
| Base 15 | 61815 | 63415 |
| Base 16 | 55d16 | 57716 |