Compare 1399 vs 1407
| Property | 1399 | 1407 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 13991 | 31 × 71 × 671 |
| Prime factorization | 1399 | 3 × 7 × 67 |
| Divisors count | 2 | 8 |
| Divisors | 1, 1399 | 1, 3, 7, 21, 67, 201, 469, 1407 |
| Number of properties | 6 | 0 |
| Chen primes | 145th | |
| Emirps | 65th | |
| Good primes | 52nd | |
| Harmonic primes | 76th | |
| Isolated primes | 131st | |
| Primes | 222nd | |
| Roman numberals | MCCCXCIX | MCDVII |
| Base 2 | 101011101112 | 101011111112 |
| Base 3 | 12202113 | 12210103 |
| Base 4 | 1113134 | 1113334 |
| Base 5 | 210445 | 211125 |
| Base 6 | 102516 | 103036 |
| Base 7 | 40367 | 40507 |
| Base 8 | 25678 | 25778 |
| Base 9 | 18249 | 18339 |
| Base 10 | 139910 | 140710 |
| Base 11 | 106211 | 106a11 |
| Base 12 | 98712 | 99312 |
| Base 13 | 83813 | 84313 |
| Base 14 | 71d14 | 72714 |
| Base 15 | 63415 | 63c15 |
| Base 16 | 57716 | 57f16 |