Compare 398 vs 445
| Property | 398 | 445 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 1991 | 51 × 891 |
| Prime factorization | 2 × 199 | 5 × 89 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 199, 398 | 1, 5, 89, 445 |
| Number of properties | 1 | 1 |
| Semiprimes | 126th | 136th |
| Roman numberals | CCCXCVIII | CDXLV |
| Base 2 | 1100011102 | 1101111012 |
| Base 3 | 1122023 | 1211113 |
| Base 4 | 120324 | 123314 |
| Base 5 | 30435 | 32405 |
| Base 6 | 15026 | 20216 |
| Base 7 | 11067 | 12047 |
| Base 8 | 6168 | 6758 |
| Base 9 | 4829 | 5449 |
| Base 10 | 39810 | 44510 |
| Base 11 | 33211 | 37511 |
| Base 12 | 29212 | 31112 |
| Base 13 | 24813 | 28313 |
| Base 14 | 20614 | 23b14 |
| Base 15 | 1b815 | 1ea15 |
| Base 16 | 18e16 | 1bd16 |