BitShiftLeft

BitShiftLeft[n, k] shifts the binary bits in the integer n to the left by k places, padding with zeros on the right.

BitShiftLeft[n] shifts one bit to the left.

Examples

Shift bits to the left by 2 positions:

BitShiftLeft[5, 2]
(* 20 *)

Shift one bit to the left (equivalent to multiplying by 2):

BitShiftLeft[7]
(* 14 *)

Please visit the official Wolfram Language Reference for more details.