Dsa
Math
Medium
Digit Factorial Sum
Given a number N, find the sum of the factorials of its digits.
Input:
A single integer N (0 <= N <= 10^7).
Output:
An integer representing the sum of the factorials of the digits of N.
Example:
Input:
145
Output:
145
Explanation: 1! + 4! + 5! = 1 + 24 + 120 = 145.
Key concepts
mathfactorialdigit
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