Compare 30391 vs 30931
| Property | 30391 | 30931 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 303911 | 309311 |
| Prime factorization | 30391 | 30931 |
| Divisors count | 2 | 2 |
| Divisors | 1, 30391 | 1, 30931 |
| Number of properties | 4 | 6 |
| Emirps | 658th | |
| Happy primes | 540th | 550th |
| Harmonic primes | 1224th | |
| Isolated primes | 2379th | |
| Long primes | 1261st | |
| Primes | 3284th | 3334th |
| Sexy primes (1st member) | 974th | |
| Twin primes (2nd member) | 472nd | |
| Roman numberals | ||
| Base 2 | 1110110101101112 | 1111000110100112 |
| Base 3 | 11122001213 | 11201021213 |
| Base 4 | 131223134 | 132031034 |
| Base 5 | 14330315 | 14422115 |
| Base 6 | 3524116 | 3551116 |
| Base 7 | 1544147 | 1561157 |
| Base 8 | 732678 | 743238 |
| Base 9 | 456179 | 463779 |
| Base 10 | 3039110 | 3093110 |
| Base 11 | 2091911 | 2126a11 |
| Base 12 | 1570712 | 15a9712 |
| Base 13 | 10aaa13 | 1110413 |
| Base 14 | b10b14 | b3b514 |
| Base 15 | 901115 | 927115 |
| Base 16 | 76b716 | 78d316 |