Binary: | 1111111111111111111111111111111111111111111111 |
Octal: | 1777777777777777 |
Hex: | 3FFFFFFFFFFF |
1, 3, 47, 141, 178481, 535443, 2796203, 8388607, 8388609, 25165821, 131421541, 394264623, 499069107643, 1497207322929, 23456248059221 and 70368744177663
No.
Its nearest Fibonacci number neighbors are 44945570212853 and 72723460248141.