var pass=1337;
var i=0;
var j=0;
for(i=1;i<=10000;i++){
for(j=1;j<=i;j++){
pass+=i*j*i;
}
if(pass == 318338237039211050000){
console.log("i:"+i);
}
else{pass=1337;}
}



var target = 318338237039211050000;

function half(begin,end)
{
    if (begin <= end)
    {
        halfValue = Math.floor( (begin+end)/2 );
        halfValueV = value(halfValue);

        if(halfValueV == target)
        {
            console.log(halfValue);
            return;
        }
        else if(halfValueV < target)
        {
            return half( (halfValue+1), end );
        }
        else
        {
            return half( begin, halfValue );
        }
    }
    else
        return;
}

function value(suspicious)
{
    pass = 1337;
    for(i = 1; i <= suspicious; i++)
    {
        pass += suspicious * i * suspicious;
    }
    return pass;
}

half(1,600000);