Question

How to calculate the sum of digits of 2 power 15 in PHP

Answer 1

function sumDigits($num) {
    $sum = 0;
     
    while ($num != 0) {
        $sum += $num % 10;
        $num = (int)($num / 10);
    }
     
    return $sum;
}
         
$base = 2;
$exponent = 15;
 
$power = pow($base, $exponent);
 
echo sumDigits($power);
 
 
 
/*
run:
    
26
   
*/

 

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