SOURCE

var target = 20;
var decimal = 0;
var result = '';
var desult = '';
var base = 32;
var arr = [
    '0','1','2','3','4','5','6','7','8',
    '9','a','b','c','d','e','f','g','h',
    'i','j','k','l','m','n','o','p','q',
    'r','s','t','u','v'
];

if(String(target).includes('.')){
    var temp = String(target).split('.');
    target = Number(temp[0]);
    decimal = Number(temp[1]) / Math.pow(10 ,temp[1].length);
}


while (target / base > 0) {
    if(target % base >= 10){
        result = arr[Number(target % base)] + result;
    }else{
        result = target % base + result;
    }
    target = Math.floor(target / base);
}


if(decimal){
    for(var i = 0; i < 10; i++){
        if(decimal * base == 1){
            desult = 1;
            break;
        }else{
            var temp = String(decimal * base).split('.');
            desult += Number(temp[0]) >= 10 ? arr[Number(temp[0])] : Number(temp[0]);
            decimal = Number(temp[1]) / Math.pow(10 ,temp[1].length);
        }
    }
}

console.log(desult ? `${result}.${desult}` : result);