Compare 991 vs 2633
| Property | 991 | 2633 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9911 | 26331 |
| Prime factorization | 991 | 2633 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991 | 1, 2633 |
| Number of properties | 10 | 6 |
| Additive primes | 89th | |
| Chen primes | 115th | |
| Emirps | 36th | |
| Harmonic primes | 144th | |
| Isolated primes | 98th | 235th |
| Long primes | 153rd | |
| Lucky primes | 42nd | |
| Primes | 167th | 382nd |
| Pythagorean primes | 188th | |
| Sexy primes (1st member) | 74th | |
| Solinas primes | 43rd | |
| Super primes | 39th | |
| Ulam primes | 18th | 29th |
| Roman numberals | CMXCI | MMDCXXXIII |
| Base 2 | 11110111112 | 1010010010012 |
| Base 3 | 11002013 | 101211123 |
| Base 4 | 331334 | 2210214 |
| Base 5 | 124315 | 410135 |
| Base 6 | 43316 | 201056 |
| Base 7 | 26147 | 104517 |
| Base 8 | 17378 | 51118 |
| Base 9 | 13219 | 35459 |
| Base 10 | 99110 | 263310 |
| Base 11 | 82111 | 1a8411 |
| Base 12 | 6a712 | 163512 |
| Base 13 | 5b313 | 127713 |
| Base 14 | 50b14 | d6114 |
| Base 15 | 46115 | ba815 |
| Base 16 | 3df16 | a4916 |