Compare 3947 vs 4021
Property | 3947 | 4021 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 39471 | 40211 |
Prime factorization | 3947 | 4021 |
Divisors count | 2 | 2 |
Divisors | 1, 3947 | 1, 4021 |
Number of properties | 8 | 6 |
Additive primes | 280th | 285th |
Chen primes | 319th | |
Cousin primes (2nd member) | 108th | |
Harmonic primes | 199th | |
Isolated primes | 343rd | |
Left-truncatable primes | 87th | |
Primes | 548th | 556th |
Pythagorean primes | 272nd | |
Restricted left-truncatable primes | 5th | |
Safe primes | 60th | |
Sexy primes (1st member) | 206th | |
Twin primes (2nd member) | 105th | |
Roman numberals | MMMCMXLVII | MMMMXXI |
Base 2 | 1111011010112 | 1111101101012 |
Base 3 | 121020123 | 121112213 |
Base 4 | 3312234 | 3323114 |
Base 5 | 1112425 | 1120415 |
Base 6 | 301356 | 303416 |
Base 7 | 143367 | 145037 |
Base 8 | 75538 | 76658 |
Base 9 | 53659 | 54579 |
Base 10 | 394710 | 402110 |
Base 11 | 2a6911 | 302611 |
Base 12 | 234b12 | 23b112 |
Base 13 | 1a4813 | 1aa413 |
Base 14 | 161d14 | 167314 |
Base 15 | 128215 | 12d115 |
Base 16 | f6b16 | fb516 |