Compare 991 vs 993
Property | 991 | 993 |
---|---|---|
Type | prime | semiprime |
Unique factors | 1 | 2 |
Total factors | 1 | 2 |
Prime factorization | 9911 | 31 × 3311 |
Prime factorization | 991 | 3 × 331 |
Divisors count | 2 | 4 |
Divisors | 1, 991 | 1, 3, 331, 993 |
Number of properties | 10 | 1 |
Additive primes | 89th | |
Chen primes | 115th | |
Emirps | 36th | |
Isolated primes | 98th | |
Lucky primes | 42nd | |
Primes | 167th | |
Semiprimes | 297th | |
Sexy primes (1st member) | 74th | |
Solinas primes | 43rd | |
Super primes | 39th | |
Ulam primes | 18th | |
Roman numberals | CMXCI | CMXCIII |
Base 2 | 11110111112 | 11111000012 |
Base 3 | 11002013 | 11002103 |
Base 4 | 331334 | 332014 |
Base 5 | 124315 | 124335 |
Base 6 | 43316 | 43336 |
Base 7 | 26147 | 26167 |
Base 8 | 17378 | 17418 |
Base 9 | 13219 | 13239 |
Base 10 | 99110 | 99310 |
Base 11 | 82111 | 82311 |
Base 12 | 6a712 | 6a912 |
Base 13 | 5b313 | 5b513 |
Base 14 | 50b14 | 50d14 |
Base 15 | 46115 | 46315 |
Base 16 | 3df16 | 3e116 |