Compare 427991 vs 428221
| Property | 427991 | 428221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4279911 | 4282211 |
| Prime factorization | 427991 | 428221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 427991 | 1, 428221 |
| Number of properties | 7 | 4 |
| Additive primes | 14242nd | |
| Chen primes | 14457th | |
| Isolated primes | 27951st | |
| Primes | 36000th | 36020th |
| Prime triplets (1st member) | 1536th | |
| Sexy primes (1st member) | 8087th | 8096th |
| Sexy prime triplets (1st member) | 1548th | |
| Sophie germain primes | 3797th | |
| Twin primes (1st member) | 4033rd | |
| Roman numberals | ||
| Base 2 | 11010000111110101112 | 11010001000101111012 |
| Base 3 | 2102020021123 | 2102021020013 |
| Base 4 | 12201331134 | 12202023314 |
| Base 5 | 1021434315 | 1022003415 |
| Base 6 | 131012356 | 131023016 |
| Base 7 | 34315347 | 34323137 |
| Base 8 | 15037278 | 15042758 |
| Base 9 | 7220759 | 7223619 |
| Base 10 | 42799110 | 42822110 |
| Base 11 | 27261311 | 27280211 |
| Base 12 | 18781b12 | 18799112 |
| Base 13 | 11ca6513 | 11cbb113 |
| Base 14 | b1d8b14 | b20b314 |
| Base 15 | 86c2b15 | 86d3115 |
| Base 16 | 687d716 | 688bd16 |