Compare 3945 vs 3947
Property | 3945 | 3947 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 3 | 1 |
Prime factorization | 31 × 51 × 2631 | 39471 |
Prime factorization | 3 × 5 × 263 | 3947 |
Divisors count | 8 | 2 |
Divisors | 1, 3, 5, 15, 263, 789, 1315, 3945 | 1, 3947 |
Number of properties | 0 | 8 |
Additive primes | 280th | |
Chen primes | 319th | |
Cousin primes (2nd member) | 108th | |
Isolated primes | 343rd | |
Left-truncatable primes | 87th | |
Primes | 548th | |
Restricted left-truncatable primes | 5th | |
Safe primes | 60th | |
Roman numberals | MMMCMXLV | MMMCMXLVII |
Base 2 | 1111011010012 | 1111011010112 |
Base 3 | 121020103 | 121020123 |
Base 4 | 3312214 | 3312234 |
Base 5 | 1112405 | 1112425 |
Base 6 | 301336 | 301356 |
Base 7 | 143347 | 143367 |
Base 8 | 75518 | 75538 |
Base 9 | 53639 | 53659 |
Base 10 | 394510 | 394710 |
Base 11 | 2a6711 | 2a6911 |
Base 12 | 234912 | 234b12 |
Base 13 | 1a4613 | 1a4813 |
Base 14 | 161b14 | 161d14 |
Base 15 | 128015 | 128215 |
Base 16 | f6916 | f6b16 |