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37 lines
775 B
Python
37 lines
775 B
Python
"""
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Problem 16: https://projecteuler.net/problem=16
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2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.
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What is the sum of the digits of the number 2^1000?
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"""
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def solution(power: int = 1000) -> int:
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"""Returns the sum of the digits of the number 2^power.
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>>> solution(1000)
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1366
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>>> solution(50)
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76
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>>> solution(20)
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31
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>>> solution(15)
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26
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"""
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num = 2**power
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string_num = str(num)
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list_num = list(string_num)
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sum_of_num = 0
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for i in list_num:
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sum_of_num += int(i)
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return sum_of_num
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if __name__ == "__main__":
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power = int(input("Enter the power of 2: ").strip())
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print("2 ^ ", power, " = ", 2**power)
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result = solution(power)
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print("Sum of the digits is: ", result)
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