18428509272

Names of 18428509272

• Cardinal: 18428509272 can be written as Eighteen billion, four hundred twenty-eight million, five hundred nine thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 1.8428509272 × 10¹⁰

Factors of 18428509272

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4908

Divisors of 18428509272

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 193 386 579 772 1103 1158 1544 2206 2316 3309 3607 4412 4632 6618 7214 8824 10821 13236 14428 21642 26472 28856 43284 86568 212879 425758 638637 696151 851516 1277274 1392302 1703032 2088453 2554548 2784604 3978521 4176906 5109096 5569208 7957042 8353812 11935563 15914084 16707624 23871126 31828168 47742252 95484504 767854553 1535709106 2303563659 3071418212 4607127318 6142836424 9214254636 18428509272
• Sum of all divisors σ(n): 46364820480
• Sum of proper divisors (its aliquot sum) s(n): 27936311208
• 18428509272 is an abundant number, because the sum of its proper divisors (27936311208) is greater than itself. Its abundance is 9507801936

Bases of 18428509272

• Binary: 10001001010011011001011110001011000₂
• Hexadecimal: 0x44A6CBC58
• Base-36: 8GRUWRC

Squares and roots of 18428509272

• 18428509272 squared (18428509272²) is 339609953988189969984
• 18428509272 cubed (18428509272³) is 6258505185934852240347545691648
• The square root of 18428509272 is 135751.6455590871
• The cube root of 18428509272 is 2641.3750332361

Scales and comparisons

• 18,428,509,272 seconds is equal to 585 years, 50 weeks, 2 days, 22 hours, 21 minutes, 12 seconds.
• To count from 1 to 18,428,509,272 would take you about one thousand, one hundred seventy-one years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 18428509272 cubic inches would be around 220.1 feet tall.

Recreational maths with 18428509272

• 18428509272 backwards is 27290582481
• The number of decimal digits it has is: 11
• The sum of 18428509272's digits is 48
• More coming soon!