21328559648

Names of 21328559648

• Cardinal: 21328559648 can be written as Twenty-one billion, three hundred twenty-eight million, five hundred fifty-nine thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1328559648 × 10¹⁰

Factors of 21328559648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2360

Divisors of 21328559648

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 88 121 176 242 352 484 968 1936 2347 3872 4694 9388 18776 25817 37552 51634 75104 103268 206536 283987 413072 567974 826144 1135948 2271896 4543792 5508409 9087584 11016818 22033636 44067272 60592499 88134544 121184998 176269088 242369996 484739992 666517489 969479984 1333034978 1938959968 2666069956 5332139912 10664279824 21328559648
• Sum of all divisors σ(n): 46174632903
• Sum of proper divisors (its aliquot sum) s(n): 24846073255
• 21328559648 is an abundant number, because the sum of its proper divisors (24846073255) is greater than itself. Its abundance is 3517513607

Bases of 21328559648

• Binary: 10011110111010001111111111000100000₂
• Hexadecimal: 0x4F747FE20
• Base-36: 9SQH1Y8

Squares and roots of 21328559648

• 21328559648 squared (21328559648²) is 454907456658293883904
• 21328559648 cubed (21328559648³) is 9702520823656395856760051105792
• The square root of 21328559648 is 146043.0061591447
• The cube root of 21328559648 is 2773.2382139365

Scales and comparisons

• 21,328,559,648 seconds is equal to 678 years, 9 weeks, 3 days, 7 hours, 54 minutes, 8 seconds.
• To count from 1 to 21,328,559,648 would take you about one thousand, three hundred fifty-six 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 21328559648 cubic inches would be around 231.1 feet tall.

Recreational maths with 21328559648

• 21328559648 backwards is 84695582312
• The number of decimal digits it has is: 11
• The sum of 21328559648's digits is 53
• More coming soon!