Compare 402 vs 409
| Property | 402 | 409 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 31 × 671 | 4091 |
| Prime factorization | 2 × 3 × 67 | 409 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 3, 6, 67, 134, 201, 402 | 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 | CDII | CDIX |
| Base 2 | 1100100102 | 1100110012 |
| Base 3 | 1122203 | 1200113 |
| Base 4 | 121024 | 121214 |
| Base 5 | 31025 | 31145 |
| Base 6 | 15106 | 15216 |
| Base 7 | 11137 | 11237 |
| Base 8 | 6228 | 6318 |
| Base 9 | 4869 | 5049 |
| Base 10 | 40210 | 40910 |
| Base 11 | 33611 | 34211 |
| Base 12 | 29612 | 2a112 |
| Base 13 | 24c13 | 25613 |
| Base 14 | 20a14 | 21314 |
| Base 15 | 1bc15 | 1c415 |
| Base 16 | 19216 | 19916 |