var a:Number=1234;
trace(a.toString(2))//10011010010
trace(a.toString(8))//2322
trace(a.toString(16))//4d2
 
var b:String="10011010010"
var b2:String="2322"
var b3:String="4d2"
 
trace(parseInt(b,2));//1234
trace(parseInt(b2,8));//1234
trace(parseInt(b3,16));//1234