Compare 503 vs 507
| Property | 503 | 507 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 5031 | 31 × 132 |
| Prime factorization | 503 | 3 × 13 × 13 |
| Divisors count | 2 | 6 |
| Divisors | 1, 503 | 1, 3, 13, 39, 169, 507 |
| Number of properties | 9 | 0 |
| Chen primes | 68th | |
| Cousin primes (2nd member) | 27th | |
| Harmonic primes | 40th | |
| Isolated primes | 49th | |
| Long primes | 36th | |
| Primes | 96th | |
| Safe primes | 18th | |
| Sexy primes (1st member) | 47th | |
| Solinas primes | 37th | |
| Roman numberals | DIII | DVII |
| Base 2 | 1111101112 | 1111110112 |
| Base 3 | 2001223 | 2002103 |
| Base 4 | 133134 | 133234 |
| Base 5 | 40035 | 40125 |
| Base 6 | 21556 | 22036 |
| Base 7 | 13167 | 13237 |
| Base 8 | 7678 | 7738 |
| Base 9 | 6189 | 6239 |
| Base 10 | 50310 | 50710 |
| Base 11 | 41811 | 42111 |
| Base 12 | 35b12 | 36312 |
| Base 13 | 2c913 | 30013 |
| Base 14 | 27d14 | 28314 |
| Base 15 | 23815 | 23c15 |
| Base 16 | 1f716 | 1fb16 |