var base62 = require('base-62.js');

base62.encode('144928238032487217698238462873470924850921348902347582734698872031234');
//=> "17BHYOc7KWVceLGi6QvVTM1OELAxTLd1EwAtmQW"

base62.decode('17BHYOc7KWVceLGi6QvVTM1OELAxTLd1EwAtmQW');
//=> "144928238032487217698238462873470924850921348902347582734698872031234"

base62.encodeHex('556c9e573337620003000000');
//=> "ynKPk8OoB7EzcAus"
 
base62.decodeHex('ynKPk8OoB7EzcAus')
//=> "556c9e573337620003000000"

base62.random()
//=> "jplADVZ4H8gYGRXGSbki8zBZsv5"