Compare 31129 vs 31139
| Property | 31129 | 31139 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 44471 | 311391 |
| Prime factorization | 7 × 4447 | 31139 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 4447, 31129 | 1, 31139 |
| Number of properties | 1 | 7 |
| Additive primes | 1515th | |
| Emirps | 669th | |
| Good primes | 333rd | |
| Isolated primes | 2394th | |
| Long primes | 1271st | |
| Primes | 3353rd | |
| Safe primes | 272nd | |
| Semiprimes | 7736th | |
| Roman numberals | ||
| Base 2 | 1111001100110012 | 1111001101000112 |
| Base 3 | 11202002213 | 11202010223 |
| Base 4 | 132121214 | 132122034 |
| Base 5 | 14440045 | 14440245 |
| Base 6 | 4000416 | 4000556 |
| Base 7 | 1565207 | 1565337 |
| Base 8 | 746318 | 746438 |
| Base 9 | 466279 | 466389 |
| Base 10 | 3112910 | 3113910 |
| Base 11 | 2142a11 | 2143911 |
| Base 12 | 1602112 | 1602b12 |
| Base 13 | 1122713 | 1123413 |
| Base 14 | b4b714 | b4c314 |
| Base 15 | 935415 | 935e15 |
| Base 16 | 799916 | 79a316 |