Question

How to find the numbers that are the sum of fifth powers of their digits in Scala

Answer 1

object DigitFifthPowerSum {

  // Computes the sum of the fifth powers of the digits of n
  def sumOfFifthPowers(n: Int): Int = {
    n.toString.map(_.asDigit).map(d => math.pow(d, 5).toInt).sum
  }

  def main(args: Array[String]): Unit = {
    val results = for (i <- 1000 until 1000000 if i == sumOfFifthPowers(i)) yield i
    
    results.foreach(println)
  }
}



/*
run:

4150
4151
54748
92727
93084
194979

*/

 

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