# A Dudeney number is a positive integer that is a perfect cube such that the sum of its digits is equal to the cube root of the number. Write a program to input a number and check and print whether it is a Dudeney number or not.Example:Consider the number 512.Sum of digits = 5 + 1 + 2 = 8Cube root of 512 = 8As Sum of digits = Cube root of Number hence 512 is a Dudeney number.

#### ICSE

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``````import java.util.Scanner;

public class KboatDudeneyNumber
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter the number: ");
int n = in.nextInt();

//Check if n is a perfect cube
int cubeRoot = (int)Math.round(Math.cbrt(n));
if (cubeRoot * cubeRoot * cubeRoot == n) {
//If n is perfect cube then find
//sum of its digits
int s = 0;
int t = n;
while (t != 0) {
int d = t % 10;
s += d;
t /= 10;
}

if (s == cubeRoot) {
System.out.println(n + " is a Dudeney number");
}
else {
System.out.println(n + " is not a Dudeney number");
}
}
else {
System.out.println(n + " is not a Dudeney number");
}
}
}``````