Compare 31139 vs 31143
| Property | 31139 | 31143 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 311391 | 31 × 71 × 14831 |
| Prime factorization | 31139 | 3 × 7 × 1483 |
| Divisors count | 2 | 8 |
| Divisors | 1, 31139 | 1, 3, 7, 21, 1483, 4449, 10381, 31143 |
| Number of properties | 7 | 0 |
| Additive primes | 1515th | |
| Emirps | 669th | |
| Good primes | 333rd | |
| Isolated primes | 2394th | |
| Long primes | 1271st | |
| Primes | 3353rd | |
| Safe primes | 272nd | |
| Roman numberals | ||
| Base 2 | 1111001101000112 | 1111001101001112 |
| Base 3 | 11202010223 | 11202011103 |
| Base 4 | 132122034 | 132122134 |
| Base 5 | 14440245 | 14440335 |
| Base 6 | 4000556 | 4001036 |
| Base 7 | 1565337 | 1565407 |
| Base 8 | 746438 | 746478 |
| Base 9 | 466389 | 466439 |
| Base 10 | 3113910 | 3114310 |
| Base 11 | 2143911 | 2144211 |
| Base 12 | 1602b12 | 1603312 |
| Base 13 | 1123413 | 1123813 |
| Base 14 | b4c314 | b4c714 |
| Base 15 | 935e15 | 936315 |
| Base 16 | 79a316 | 79a716 |