Compare 839 vs 881
| Property | 839 | 881 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 8391 | 8811 | 
| Prime factorization | 839 | 881 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 839 | 1, 881 | 
| Number of properties | 4 | 12 | 
| Additive primes | 80th | |
| Chen primes | 100th | 104th | 
| Cousin primes (2nd member) | 37th | |
| Happy primes | 33rd | |
| Harmonic primes | 57th | |
| Isolated primes | 81st | |
| Primes | 146th | 152nd | 
| Prime triplets (1st member) | 30th | |
| Prime triplets (2nd member) | 29th | |
| Pythagorean primes | 74th | |
| Quartan primes | 7th | |
| Safe primes | 22nd | |
| Sexy primes (1st member) | 69th | |
| Twin primes (1st member) | 35th | |
| Roman numberals | DCCCXXXIX | DCCCLXXXI | 
| Base 2 | 11010001112 | 11011100012 | 
| Base 3 | 10110023 | 10121223 | 
| Base 4 | 310134 | 313014 | 
| Base 5 | 113245 | 120115 | 
| Base 6 | 35156 | 40256 | 
| Base 7 | 23067 | 23667 | 
| Base 8 | 15078 | 15618 | 
| Base 9 | 11329 | 11789 | 
| Base 10 | 83910 | 88110 | 
| Base 11 | 6a311 | 73111 | 
| Base 12 | 59b12 | 61512 | 
| Base 13 | 4c713 | 52a13 | 
| Base 14 | 43d14 | 46d14 | 
| Base 15 | 3ae15 | 3db15 | 
| Base 16 | 34716 | 37116 |