Compare 4019 vs 4091
| Property | 4019 | 4091 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 40191 | 40911 | 
| Prime factorization | 4019 | 4091 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 4019 | 1, 4091 | 
| Number of properties | 8 | 7 | 
| Chen primes | 323rd | 325th | 
| Harmonic primes | 202nd | |
| Long primes | 220th | 224th | 
| Primes | 555th | 563rd | 
| Sexy primes (2nd member) | 205th | |
| Sexy prime quadrupletss (4th member) | 17th | |
| Sexy prime triplets (3rd member) | 72nd | |
| Solinas primes | 64th | |
| Sophie germain primes | 102nd | |
| Super primes | 103rd | |
| Twin primes (1st member) | 105th | 107th | 
| Roman numberals | MMMMXIX | MMMMXCI | 
| Base 2 | 1111101100112 | 1111111110112 | 
| Base 3 | 121112123 | 121211123 | 
| Base 4 | 3323034 | 3333234 | 
| Base 5 | 1120345 | 1123315 | 
| Base 6 | 303356 | 305356 | 
| Base 7 | 145017 | 146337 | 
| Base 8 | 76638 | 77738 | 
| Base 9 | 54559 | 55459 | 
| Base 10 | 401910 | 409110 | 
| Base 11 | 302411 | 308a11 | 
| Base 12 | 23ab12 | 244b12 | 
| Base 13 | 1aa213 | 1b2913 | 
| Base 14 | 167114 | 16c314 | 
| Base 15 | 12ce15 | 132b15 | 
| Base 16 | fb316 | ffb16 |