Compare 31139 vs 31481
| Property | 31139 | 31481 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 311391 | 314811 |
| Prime factorization | 31139 | 31481 |
| Divisors count | 2 | 2 |
| Divisors | 1, 31139 | 1, 31481 |
| Number of properties | 7 | 9 |
| Additive primes | 1515th | 1534th |
| Chen primes | 1617th | |
| Cousin primes (2nd member) | 486th | |
| Emirps | 669th | 679th |
| Good primes | 333rd | |
| Happy primes | 558th | |
| Harmonic primes | 1264th | |
| Isolated primes | 2394th | 2419th |
| Long primes | 1271st | |
| Primes | 3353rd | 3388th |
| Pythagorean primes | 1686th | |
| Safe primes | 272nd | |
| Roman numberals | ||
| Base 2 | 1111001101000112 | 1111010111110012 |
| Base 3 | 11202010223 | 11210112223 |
| Base 4 | 132122034 | 132233214 |
| Base 5 | 14440245 | 20014115 |
| Base 6 | 4000556 | 4014256 |
| Base 7 | 1565337 | 1605327 |
| Base 8 | 746438 | 753718 |
| Base 9 | 466389 | 471589 |
| Base 10 | 3113910 | 3148110 |
| Base 11 | 2143911 | 2171a11 |
| Base 12 | 1602b12 | 1627512 |
| Base 13 | 1123413 | 1143813 |
| Base 14 | b4c314 | b68914 |
| Base 15 | 935e15 | 94db15 |
| Base 16 | 79a316 | 7af916 |