Compare 406 vs 409
| Property | 406 | 409 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 71 × 291 | 4091 |
| Prime factorization | 2 × 7 × 29 | 409 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 7, 14, 29, 58, 203, 406 | 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 | CDVI | CDIX |
| Base 2 | 1100101102 | 1100110012 |
| Base 3 | 1200013 | 1200113 |
| Base 4 | 121124 | 121214 |
| Base 5 | 31115 | 31145 |
| Base 6 | 15146 | 15216 |
| Base 7 | 11207 | 11237 |
| Base 8 | 6268 | 6318 |
| Base 9 | 5019 | 5049 |
| Base 10 | 40610 | 40910 |
| Base 11 | 33a11 | 34211 |
| Base 12 | 29a12 | 2a112 |
| Base 13 | 25313 | 25613 |
| Base 14 | 21014 | 21314 |
| Base 15 | 1c115 | 1c415 |
| Base 16 | 19616 | 19916 |