Compare 400 vs 403
| Property | 400 | 403 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 6 | 2 |
| Prime factorization | 24 × 52 | 131 × 311 |
| Prime factorization | 2 × 2 × 2 × 2 × 5 × 5 | 13 × 31 |
| Divisors count | 15 | 4 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400 | 1, 13, 31, 403 |
| Number of properties | 0 | 1 |
| Semiprimes | 127th | |
| Roman numberals | CD | CDIII |
| Base 2 | 1100100002 | 1100100112 |
| Base 3 | 1122113 | 1122213 |
| Base 4 | 121004 | 121034 |
| Base 5 | 31005 | 31035 |
| Base 6 | 15046 | 15116 |
| Base 7 | 11117 | 11147 |
| Base 8 | 6208 | 6238 |
| Base 9 | 4849 | 4879 |
| Base 10 | 40010 | 40310 |
| Base 11 | 33411 | 33711 |
| Base 12 | 29412 | 29712 |
| Base 13 | 24a13 | 25013 |
| Base 14 | 20814 | 20b14 |
| Base 15 | 1ba15 | 1bd15 |
| Base 16 | 19016 | 19316 |