Compare 984 vs 991
| Property | 984 | 991 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 23 × 31 × 411 | 9911 |
| Prime factorization | 2 × 2 × 2 × 3 × 41 | 991 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984 | 1, 991 |
| Number of properties | 0 | 10 |
| Additive primes | 89th | |
| Chen primes | 115th | |
| Emirps | 36th | |
| Isolated primes | 98th | |
| Lucky primes | 42nd | |
| Primes | 167th | |
| Sexy primes (1st member) | 74th | |
| Solinas primes | 43rd | |
| Super primes | 39th | |
| Ulam primes | 18th | |
| Roman numberals | CMLXXXIV | CMXCI |
| Base 2 | 11110110002 | 11110111112 |
| Base 3 | 11001103 | 11002013 |
| Base 4 | 331204 | 331334 |
| Base 5 | 124145 | 124315 |
| Base 6 | 43206 | 43316 |
| Base 7 | 26047 | 26147 |
| Base 8 | 17308 | 17378 |
| Base 9 | 13139 | 13219 |
| Base 10 | 98410 | 99110 |
| Base 11 | 81511 | 82111 |
| Base 12 | 6a012 | 6a712 |
| Base 13 | 5a913 | 5b313 |
| Base 14 | 50414 | 50b14 |
| Base 15 | 45915 | 46115 |
| Base 16 | 3d816 | 3df16 |