Compare 31081 vs 31090
| Property | 31081 | 31090 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 310811 | 21 × 51 × 31091 |
| Prime factorization | 31081 | 2 × 5 × 3109 |
| Divisors count | 2 | 8 |
| Divisors | 1, 31081 | 1, 2, 5, 10, 3109, 6218, 15545, 31090 |
| Number of properties | 6 | 0 |
| Additive primes | 1514th | |
| Emirps | 666th | |
| Lucky primes | 519th | |
| Primes | 3349th | |
| Pythagorean primes | 1667th | |
| Twin primes (2nd member) | 479th | |
| Roman numberals | ||
| Base 2 | 1111001011010012 | 1111001011100102 |
| Base 3 | 11201220113 | 11201221113 |
| Base 4 | 132112214 | 132113024 |
| Base 5 | 14433115 | 14433305 |
| Base 6 | 3555216 | 3555346 |
| Base 7 | 1564217 | 1564337 |
| Base 8 | 745518 | 745628 |
| Base 9 | 465649 | 465749 |
| Base 10 | 3108110 | 3109010 |
| Base 11 | 2139611 | 213a411 |
| Base 12 | 15ba112 | 15baa12 |
| Base 13 | 111bb13 | 111c713 |
| Base 14 | b48114 | b48a14 |
| Base 15 | 932115 | 932a15 |
| Base 16 | 796916 | 797216 |