Compare 839 vs 947
| Property | 839 | 947 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8391 | 9471 |
| Prime factorization | 839 | 947 |
| Divisors count | 2 | 2 |
| Divisors | 1, 839 | 1, 947 |
| Number of properties | 4 | 7 |
| Chen primes | 100th | 110th |
| Isolated primes | 81st | 92nd |
| Left-truncatable primes | 50th | |
| Primes | 146th | 161st |
| Safe primes | 22nd | |
| Sexy primes (1st member) | 71st | |
| Sexy primes (2nd member) | 70th | |
| Sexy prime triplets (2nd member) | 27th | |
| Roman numberals | DCCCXXXIX | CMXLVII |
| Base 2 | 11010001112 | 11101100112 |
| Base 3 | 10110023 | 10220023 |
| Base 4 | 310134 | 323034 |
| Base 5 | 113245 | 122425 |
| Base 6 | 35156 | 42156 |
| Base 7 | 23067 | 25227 |
| Base 8 | 15078 | 16638 |
| Base 9 | 11329 | 12629 |
| Base 10 | 83910 | 94710 |
| Base 11 | 6a311 | 79111 |
| Base 12 | 59b12 | 66b12 |
| Base 13 | 4c713 | 57b13 |
| Base 14 | 43d14 | 4b914 |
| Base 15 | 3ae15 | 43215 |
| Base 16 | 34716 | 3b316 |