Compare 409 vs 487
| Property | 409 | 487 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4091 | 4871 |
| Prime factorization | 409 | 487 |
| Divisors count | 2 | 2 |
| Divisors | 1, 409 | 1, 487 |
| Number of properties | 9 | 10 |
| Additive primes | 47th | 54th |
| Centered triangular primes | 5th | |
| Chen primes | 57th | 65th |
| Cousin primes (1st member) | 26th | |
| Happy primes | 22nd | 23rd |
| Harmonic primes | 37th | |
| Isolated primes | 39th | 46th |
| Long primes | 33rd | |
| Lucky primes | 22nd | 26th |
| Pierpont primes | 16th | |
| Primes | 80th | 93rd |
| Pythagorean primes | 39th | |
| Ulam primes | 11th | |
| Roman numberals | CDIX | CDLXXXVII |
| Base 2 | 1100110012 | 1111001112 |
| Base 3 | 1200113 | 2000013 |
| Base 4 | 121214 | 132134 |
| Base 5 | 31145 | 34225 |
| Base 6 | 15216 | 21316 |
| Base 7 | 11237 | 12647 |
| Base 8 | 6318 | 7478 |
| Base 9 | 5049 | 6019 |
| Base 10 | 40910 | 48710 |
| Base 11 | 34211 | 40311 |
| Base 12 | 2a112 | 34712 |
| Base 13 | 25613 | 2b613 |
| Base 14 | 21314 | 26b14 |
| Base 15 | 1c415 | 22715 |
| Base 16 | 19916 | 1e716 |