numberToReadable will return an int if the $shorthand is empty.

Author: mkwsra

src/Interaction.php

@@ -221,7 +221,9 @@ static public function numberToReadable($number, $precision = 1, $divisors = nul
             }
         }
 
-        return number_format($number / $divisor, $precision).$shorthand;
+        $precision = empty($shorthand) ? 0 : $precision;
+
+        return number_format($number / $divisor, $precision) . $shorthand;
     }