Compare 1399 vs 1523
| Property | 1399 | 1523 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13991 | 15231 |
| Prime factorization | 1399 | 1523 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1399 | 1, 1523 |
| Number of properties | 6 | 7 |
| Additive primes | 131st | |
| Chen primes | 145th | |
| Emirps | 65th | 74th |
| Good primes | 52nd | |
| Harmonic primes | 76th | |
| Isolated primes | 131st | 142nd |
| Left-truncatable primes | 59th | |
| Primes | 222nd | 241st |
| Safe primes | 34th | |
| Super primes | 53rd | |
| Roman numberals | MCCCXCIX | MDXXIII |
| Base 2 | 101011101112 | 101111100112 |
| Base 3 | 12202113 | 20021023 |
| Base 4 | 1113134 | 1133034 |
| Base 5 | 210445 | 220435 |
| Base 6 | 102516 | 110156 |
| Base 7 | 40367 | 43047 |
| Base 8 | 25678 | 27638 |
| Base 9 | 18249 | 20729 |
| Base 10 | 139910 | 152310 |
| Base 11 | 106211 | 116511 |
| Base 12 | 98712 | a6b12 |
| Base 13 | 83813 | 90213 |
| Base 14 | 71d14 | 7ab14 |
| Base 15 | 63415 | 6b815 |
| Base 16 | 57716 | 5f316 |