<script>
 var onum=new Number(1983)
 with (document)
 {
   write("數字1983");
   write("<br>16進制表示為:"+onum.toString(16));
   write("<br>8進制表示為:"+onum.toString(8));
   write("<br>2進制表示為:"+onum.toString(2));
 }
</script>