20831184864

Names of 20831184864

• Cardinal: 20831184864 can be written as Twenty billion, eight hundred thirty-one million, one hundred eighty-four thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 2.0831184864 × 10¹⁰

Factors of 20831184864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10332941

Divisors of 20831184864

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 10332929 20665858 30998787 41331716 61997574 72330503 82663432 92996361 123995148 144661006 165326864 185992722 216991509 247990296 289322012 330653728 371985444 433983018 495980592 578644024 650974527 743970888 867966036 991961184 1157288048 1301949054 1487941776 1735932072 2314576096 2603898108 2975883552 3471864144 5207796216 6943728288 10415592432 20831184864
• Sum of all divisors σ(n): 67701357360
• Sum of proper divisors (its aliquot sum) s(n): 46870172496
• 20831184864 is an abundant number, because the sum of its proper divisors (46870172496) is greater than itself. Its abundance is 26038987632

Bases of 20831184864

• Binary: 10011011001101000101010011111100000₂
• Hexadecimal: 0x4D9A2A7E0
• Base-36: 9KICL40

Squares and roots of 20831184864

• 20831184864 squared (20831184864²) is 433938262838142698496
• 20831184864 cubed (20831184864³) is 9039448172744371862781990764544
• The square root of 20831184864 is 144330.1245894287
• The cube root of 20831184864 is 2751.5114496345

Scales and comparisons

• 20,831,184,864 seconds is equal to 662 years, 19 weeks, 16 hours, 14 minutes, 24 seconds.
• To count from 1 to 20,831,184,864 would take you about one thousand, three hundred twenty-four 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 20831184864 cubic inches would be around 229.3 feet tall.

Recreational maths with 20831184864

• 20831184864 backwards is 46848113802
• The number of decimal digits it has is: 11
• The sum of 20831184864's digits is 45
• More coming soon!