Compare 3939 vs 3947
| Property | 3939 | 3947 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 131 × 1011 | 39471 |
| Prime factorization | 3 × 13 × 101 | 3947 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 13, 39, 101, 303, 1313, 3939 | 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 | MMMCMXXXIX | MMMCMXLVII |
| Base 2 | 1111011000112 | 1111011010112 |
| Base 3 | 121012203 | 121020123 |
| Base 4 | 3312034 | 3312234 |
| Base 5 | 1112245 | 1112425 |
| Base 6 | 301236 | 301356 |
| Base 7 | 143257 | 143367 |
| Base 8 | 75438 | 75538 |
| Base 9 | 53569 | 53659 |
| Base 10 | 393910 | 394710 |
| Base 11 | 2a6111 | 2a6911 |
| Base 12 | 234312 | 234b12 |
| Base 13 | 1a4013 | 1a4813 |
| Base 14 | 161514 | 161d14 |
| Base 15 | 127915 | 128215 |
| Base 16 | f6316 | f6b16 |