Compare 1399 vs 1401
| Property | 1399 | 1401 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 13991 | 31 × 4671 |
| Prime factorization | 1399 | 3 × 467 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1399 | 1, 3, 467, 1401 |
| Number of properties | 6 | 1 |
| Chen primes | 145th | |
| Emirps | 65th | |
| Good primes | 52nd | |
| Harmonic primes | 76th | |
| Isolated primes | 131st | |
| Primes | 222nd | |
| Semiprimes | 415th | |
| Roman numberals | MCCCXCIX | MCDI |
| Base 2 | 101011101112 | 101011110012 |
| Base 3 | 12202113 | 12202203 |
| Base 4 | 1113134 | 1113214 |
| Base 5 | 210445 | 211015 |
| Base 6 | 102516 | 102536 |
| Base 7 | 40367 | 40417 |
| Base 8 | 25678 | 25718 |
| Base 9 | 18249 | 18269 |
| Base 10 | 139910 | 140110 |
| Base 11 | 106211 | 106411 |
| Base 12 | 98712 | 98912 |
| Base 13 | 83813 | 83a13 |
| Base 14 | 71d14 | 72114 |
| Base 15 | 63415 | 63615 |
| Base 16 | 57716 | 57916 |