JS Hex/Bin Conv Final SRC

<script>
var x=prompt("enter Integer:");//Grab User Input
  if (Number(x)){
var xx=(x<<x);//Input #
var xxx=xx.toString(10);//Binary
var xxxx=xx.toString(16);//Hexadecimal
alert("Bin: "+xxx+" Hex :"+xxxx) //Resuly
  }
else{
  alert("Invalid Entry!")
}
</script>