8128996740

Names of 8128996740

• Cardinal: 8128996740 can be written as Eight billion, one hundred twenty-eight million, nine hundred ninety-six thousand, seven hundred forty.

Scientific notation

• Scientific notation: 8.12899674 × 10⁹

Factors of 8128996740

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 13456

Divisors of 8128996740

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 6529 6917 13058 13834 19587 20751 26116 27668 32645 34585 39174 41502 58761 62253 65290 69170 78348 83004 97935 103755 117522 124506 130580 138340 195870 207510 235044 249012 293805 311265 391740 415020 587610 622530 1175220 1245060 45161093 90322186 135483279 180644372 225805465 270966558 406449837 451610930 541933116 677416395 812899674 903221860 1354832790 1625799348 2032249185 2709665580 4064498370 8128996740
• Sum of all divisors σ(n): 24665298840
• Sum of proper divisors (its aliquot sum) s(n): 16536302100
• 8128996740 is an abundant number, because the sum of its proper divisors (16536302100) is greater than itself. Its abundance is 8407305360

Bases of 8128996740

• Binary: 111100100100001101010010110000100₂
• Hexadecimal: 0x1E486A584
• Base-36: 3QFSM10

Squares and roots of 8128996740

• 8128996740 squared (8128996740²) is 66080587998930627600
• 8128996740 cubed (8128996740³) is 537168884420590195246554024000
• The square root of 8128996740 is 90160.9490855105
• The cube root of 8128996740 is 2010.6924620893

Scales and comparisons

• 8,128,996,740 seconds is equal to 258 years, 24 weeks, 5 days, 14 hours, 39 minutes.
• To count from 1 to 8,128,996,740 would take you about five hundred sixteen 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 8128996740 cubic inches would be around 167.6 feet tall.

Recreational maths with 8128996740

• 8128996740 backwards is 0476998218
• The number of decimal digits it has is: 10
• The sum of 8128996740's digits is 54
• More coming soon!