Multiple choice general knowledge math & puzzles There is a number that is 6 times the sum of its digits. What is this number? 34 65 54 78 Reveal answer Fill a bubble to check yourself C Correct answer Explanation For the number 54, the sum of the digits is 5 + 4 = 9. Multiplying the sum by 6 gives 9 * 6 = 54. No other option satisfies this condition.