Compare 408 vs 409
| Property | 408 | 409 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 23 × 31 × 171 | 4091 |
| Prime factorization | 2 × 2 × 2 × 3 × 17 | 409 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408 | 1, 409 |
| Number of properties | 0 | 9 |
| Additive primes | 47th | |
| Centered triangular primes | 5th | |
| Chen primes | 57th | |
| Happy primes | 22nd | |
| Isolated primes | 39th | |
| Lucky primes | 22nd | |
| Primes | 80th | |
| Pythagorean primes | 39th | |
| Ulam primes | 11th | |
| Roman numberals | CDVIII | CDIX |
| Base 2 | 1100110002 | 1100110012 |
| Base 3 | 1200103 | 1200113 |
| Base 4 | 121204 | 121214 |
| Base 5 | 31135 | 31145 |
| Base 6 | 15206 | 15216 |
| Base 7 | 11227 | 11237 |
| Base 8 | 6308 | 6318 |
| Base 9 | 5039 | 5049 |
| Base 10 | 40810 | 40910 |
| Base 11 | 34111 | 34211 |
| Base 12 | 2a012 | 2a112 |
| Base 13 | 25513 | 25613 |
| Base 14 | 21214 | 21314 |
| Base 15 | 1c315 | 1c415 |
| Base 16 | 19816 | 19916 |