Compare 31139 vs 31531
| Property | 31139 | 31531 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 311391 | 315311 |
| Prime factorization | 31139 | 31531 |
| Divisors count | 2 | 2 |
| Divisors | 1, 31139 | 1, 31531 |
| Number of properties | 7 | 7 |
| Additive primes | 1515th | 1538th |
| Emirps | 669th | 680th |
| Good primes | 333rd | |
| Harmonic primes | 1267th | |
| Isolated primes | 2394th | 2422nd |
| Long primes | 1271st | 1284th |
| Lucky primes | 527th | |
| Primes | 3353rd | 3393rd |
| Safe primes | 272nd | |
| Roman numberals | ||
| Base 2 | 1111001101000112 | 1111011001010112 |
| Base 3 | 11202010223 | 11210202113 |
| Base 4 | 132122034 | 132302234 |
| Base 5 | 14440245 | 20021115 |
| Base 6 | 4000556 | 4015516 |
| Base 7 | 1565337 | 1606337 |
| Base 8 | 746438 | 754538 |
| Base 9 | 466389 | 472249 |
| Base 10 | 3113910 | 3153110 |
| Base 11 | 2143911 | 2176511 |
| Base 12 | 1602b12 | 162b712 |
| Base 13 | 1123413 | 1147613 |
| Base 14 | b4c314 | b6c314 |
| Base 15 | 935e15 | 952115 |
| Base 16 | 79a316 | 7b2b16 |