Compare 409 vs 503
| Property | 409 | 503 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 4091 | 5031 | 
| Prime factorization | 409 | 503 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 409 | 1, 503 | 
| Number of properties | 9 | 9 | 
| Additive primes | 47th | |
| Centered triangular primes | 5th | |
| Chen primes | 57th | 68th | 
| Cousin primes (2nd member) | 27th | |
| Happy primes | 22nd | |
| Harmonic primes | 40th | |
| Isolated primes | 39th | 49th | 
| Long primes | 36th | |
| Lucky primes | 22nd | |
| Primes | 80th | 96th | 
| Pythagorean primes | 39th | |
| Safe primes | 18th | |
| Sexy primes (1st member) | 47th | |
| Solinas primes | 37th | |
| Ulam primes | 11th | |
| Roman numberals | CDIX | DIII | 
| Base 2 | 1100110012 | 1111101112 | 
| Base 3 | 1200113 | 2001223 | 
| Base 4 | 121214 | 133134 | 
| Base 5 | 31145 | 40035 | 
| Base 6 | 15216 | 21556 | 
| Base 7 | 11237 | 13167 | 
| Base 8 | 6318 | 7678 | 
| Base 9 | 5049 | 6189 | 
| Base 10 | 40910 | 50310 | 
| Base 11 | 34211 | 41811 | 
| Base 12 | 2a112 | 35b12 | 
| Base 13 | 25613 | 2c913 | 
| Base 14 | 21314 | 27d14 | 
| Base 15 | 1c415 | 23815 | 
| Base 16 | 19916 | 1f716 |