Converting Hex to String

iex(2)> input = "0x056bc75e2d63100002"
"0x056bc75e2d63100002"
iex(3)> "0x" <> hex = input
"0x056bc75e2d63100002"
iex(4)> Integer.parse(hex, 16)
{100000000000000000002, ""}