Compare 409 vs 1531
| Property | 409 | 1531 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4091 | 15311 |
| Prime factorization | 409 | 1531 |
| Divisors count | 2 | 2 |
| Divisors | 1, 409 | 1, 1531 |
| Number of properties | 9 | 5 |
| Additive primes | 47th | |
| Centered decagonal primes | 13th | |
| Centered triangular primes | 5th | |
| Chen primes | 57th | |
| Happy primes | 22nd | |
| Isolated primes | 39th | 143rd |
| Long primes | 91st | |
| Lucky primes | 22nd | |
| Primes | 80th | 242nd |
| Pythagorean primes | 39th | |
| Ulam primes | 11th | 22nd |
| Roman numberals | CDIX | MDXXXI |
| Base 2 | 1100110012 | 101111110112 |
| Base 3 | 1200113 | 20022013 |
| Base 4 | 121214 | 1133234 |
| Base 5 | 31145 | 221115 |
| Base 6 | 15216 | 110316 |
| Base 7 | 11237 | 43157 |
| Base 8 | 6318 | 27738 |
| Base 9 | 5049 | 20819 |
| Base 10 | 40910 | 153110 |
| Base 11 | 34211 | 117211 |
| Base 12 | 2a112 | a7712 |
| Base 13 | 25613 | 90a13 |
| Base 14 | 21314 | 7b514 |
| Base 15 | 1c415 | 6c115 |
| Base 16 | 19916 | 5fb16 |