English : Spanish the thousand = el mil the million = el millón the billion = el mil millones hundred = cien hundred thousand = cien mil ten thousand = diez mil thirty thousand = treinta mil fifty thousand = cincuenta mil seventy thousand = setenta mil ninety thousand = noventa mil the trillion = el billón hundred million = cien millones five hundred = quinientos eight hundred = ochocientos one thousand = mil four thousand = cuatro mil six thousand = seis mil nine thousand = nueve mil the number = el número infinite = infinito