Compare 1399 vs 1973
| Property | 1399 | 1973 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13991 | 19731 |
| Prime factorization | 1399 | 1973 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1399 | 1, 1973 |
| Number of properties | 6 | 7 |
| Chen primes | 145th | |
| Emirps | 65th | |
| Good primes | 52nd | 61st |
| Harmonic primes | 76th | 111th |
| Isolated primes | 131st | 179th |
| Primes | 222nd | 298th |
| Pythagorean primes | 145th | |
| Sexy primes (1st member) | 126th | |
| Sophie germain primes | 60th | |
| Roman numberals | MCCCXCIX | MCMLXXIII |
| Base 2 | 101011101112 | 111101101012 |
| Base 3 | 12202113 | 22010023 |
| Base 4 | 1113134 | 1323114 |
| Base 5 | 210445 | 303435 |
| Base 6 | 102516 | 130456 |
| Base 7 | 40367 | 55167 |
| Base 8 | 25678 | 36658 |
| Base 9 | 18249 | 26329 |
| Base 10 | 139910 | 197310 |
| Base 11 | 106211 | 153411 |
| Base 12 | 98712 | 118512 |
| Base 13 | 83813 | b8a13 |
| Base 14 | 71d14 | a0d14 |
| Base 15 | 63415 | 8b815 |
| Base 16 | 57716 | 7b516 |