Compare 1399 vs 1409
| Property | 1399 | 1409 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13991 | 14091 |
| Prime factorization | 1399 | 1409 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1399 | 1, 1409 |
| Number of properties | 6 | 8 |
| Chen primes | 145th | 146th |
| Emirps | 65th | 66th |
| Good primes | 52nd | |
| Harmonic primes | 76th | |
| Isolated primes | 131st | 132nd |
| Primes | 222nd | 223rd |
| Proth primes | 20th | |
| Pythagorean primes | 110th | |
| Sophie germain primes | 46th | |
| Super primes | 48th | |
| Roman numberals | MCCCXCIX | MCDIX |
| Base 2 | 101011101112 | 101100000012 |
| Base 3 | 12202113 | 12210123 |
| Base 4 | 1113134 | 1120014 |
| Base 5 | 210445 | 211145 |
| Base 6 | 102516 | 103056 |
| Base 7 | 40367 | 40527 |
| Base 8 | 25678 | 26018 |
| Base 9 | 18249 | 18359 |
| Base 10 | 139910 | 140910 |
| Base 11 | 106211 | 107111 |
| Base 12 | 98712 | 99512 |
| Base 13 | 83813 | 84513 |
| Base 14 | 71d14 | 72914 |
| Base 15 | 63415 | 63e15 |
| Base 16 | 57716 | 58116 |