Compare 398 vs 399
| Property | 398 | 399 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 21 × 1991 | 31 × 71 × 191 |
| Prime factorization | 2 × 199 | 3 × 7 × 19 |
| Divisors count | 4 | 8 |
| Divisors | 1, 2, 199, 398 | 1, 3, 7, 19, 21, 57, 133, 399 |
| Number of properties | 1 | 0 |
| Semiprimes | 126th | |
| Roman numberals | CCCXCVIII | CCCXCIX |
| Base 2 | 1100011102 | 1100011112 |
| Base 3 | 1122023 | 1122103 |
| Base 4 | 120324 | 120334 |
| Base 5 | 30435 | 30445 |
| Base 6 | 15026 | 15036 |
| Base 7 | 11067 | 11107 |
| Base 8 | 6168 | 6178 |
| Base 9 | 4829 | 4839 |
| Base 10 | 39810 | 39910 |
| Base 11 | 33211 | 33311 |
| Base 12 | 29212 | 29312 |
| Base 13 | 24813 | 24913 |
| Base 14 | 20614 | 20714 |
| Base 15 | 1b815 | 1b915 |
| Base 16 | 18e16 | 18f16 |