Compare 945 vs 947
| Property | 945 | 947 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 33 × 51 × 71 | 9471 |
| Prime factorization | 3 × 3 × 3 × 5 × 7 | 947 |
| Divisors count | 16 | 2 |
| Divisors | 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945 | 1, 947 |
| Number of properties | 0 | 7 |
| Chen primes | 110th | |
| Isolated primes | 92nd | |
| Left-truncatable primes | 50th | |
| Primes | 161st | |
| Sexy primes (1st member) | 71st | |
| Sexy primes (2nd member) | 70th | |
| Sexy prime triplets (2nd member) | 27th | |
| Roman numberals | CMXLV | CMXLVII |
| Base 2 | 11101100012 | 11101100112 |
| Base 3 | 10220003 | 10220023 |
| Base 4 | 323014 | 323034 |
| Base 5 | 122405 | 122425 |
| Base 6 | 42136 | 42156 |
| Base 7 | 25207 | 25227 |
| Base 8 | 16618 | 16638 |
| Base 9 | 12609 | 12629 |
| Base 10 | 94510 | 94710 |
| Base 11 | 78a11 | 79111 |
| Base 12 | 66912 | 66b12 |
| Base 13 | 57913 | 57b13 |
| Base 14 | 4b714 | 4b914 |
| Base 15 | 43015 | 43215 |
| Base 16 | 3b116 | 3b316 |