tomislav-b
8/27/2013 - 7:10 PM

## Given an integer in the range of 0 < X < 10**26 returns the string representation of the given number. Like: 25161045656 => 'twenty five bil

Given an integer in the range of 0 < X < 10**26 returns the string representation of the given number. Like: 25161045656 => 'twenty five billion one hundred sixty one million forty five thousand six hundred fifty six'

``````\$numbers = {0 => "", 1 => "one", 2 => "two", 3 => "three",
4 => "four", 5 => "five", 6 => "six", 7 => "seven",
8 =>  "eight", 9 => "nine", 10 => "ten",
11 => "eleven", 12 => "twelve", 13 => "thirteen",
14 => "fourteen", 15 => "fifteen", 16 => "sixteen",
17 => "seventeen", 18 => "eighteen", 19 => "nineteen",
20 => "twenty", 30 => "thirty", 40 => "forty",
50 => "fifty", 60 => "sixty",
70 => "seventy", 80 => "eighty",
90 => "ninety", 10**2 => "hundred"}

\$large_numbers = {1 => "", 10**3 => "thousand", 10**6 => "million",
10**9 => "billion", 10**12 => "trillion",
10**15 => "quadrillion", 10**18 => "quintillion",
10**21 => "sextillion", 10**24 => "septillion"}

def small_number_to_word(number)
english = ""

if number.abs.to_s.length > 2
english << \$numbers[(number % 1000 - number % 100) / 100] + " " + \$numbers[100] + " "
end

if \$numbers.keys.include?(number % 100) and number != 100
english << \$numbers[number % 100]
return english.strip
end

english += \$numbers[number % 100 - number % 10] + " " + \$numbers[number % 10] + " "

return english.strip
end

def int_to_english(number)
english = ""
large_num = 1
temp_list = []

while number != 0
temp_list << \$large_numbers[large_num] + " "
temp_list << small_number_to_word(number % 1000) + " "

number = number / 1000
large_num = large_num * 1000
end

temp_list.reverse!
temp_list.each do |string|
english << string
end

return english.strip
end``````
``````numStrList = {0: "", 1: "one", 2: "two", 3: "three",
4: "four", 5: "five", 6: "six", 7: "seven",
8:  "eight", 9: "nine", 10: "ten",
11: "eleven", 12: "twelve", 13: "thirteen",
14: "fourteen", 15: "fifteen", 16: "sixteen",
17: "seventeen", 18: "eighteen", 19: "nineteen",
20: "twenty", 30: "thirty", 40: "forty",
50: "fifty", 60: "sixty",
70: "seventy", 80: "eighty",
90: "ninety", 10**2: "hundred"}

largeNumStrList = {1: "", 10**3: "thousand", 10**6: "million",
10**9: "billion", 10**12: "trillion",
10**21: "hexillion", 10**24: "heptillion"}

def smallNumberToWord(number):
"""Returns the string representation of a given integer
input: 0 < X < 1000"""

numWord = ""

if len(str(abs(number))) > 2:
numWord += numStrList[(number % 1000 - number % 100) / 100] + " " + \
numStrList[100] + " "

if number % 100 in numStrList.keys() and number != 100:
numWord += numStrList[number % 100]
return numWord.strip()

numWord += numStrList[number % 100 - number % 10] + " " + \
numStrList[number % 10] + " "

return numWord.strip()

def numberToWord(number):
"""
Returns the string representation of a given integer
input: int 0 < X < 10**24
"""
numWord = ""
largeNum = 1
tempList = []

while number != 0:
tempList.append(largeNumStrList[largeNum] + " ")
tempList.append(smallNumberToWord(number % 1000) + " ")

number /= 1000
largeNum *= 1000

tempList.reverse()
for string in tempList:
numWord += string

return numWord.strip()

# MAIN function
if __name__ == '__main__':
print numberToWord(25161045656)``````