128478516336

Names of 128478516336

• Cardinal: 128478516336 can be written as One hundred twenty-eight billion, four hundred seventy-eight million, five hundred sixteen thousand, three hundred thirty-six.

Scientific notation

• Scientific notation: 1.28478516336 × 10¹¹

Factors of 128478516336

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 297403978

Divisors of 128478516336

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 297403973 594807946 892211919 1189615892 1784423838 2379231784 2676635757 3568847676 4758463568 5353271514 7137695352 8029907271 10706543028 14275390704 16059814542 21413086056 32119629084 42826172112 64239258168 128478516336
• Sum of all divisors σ(n): 368780927760
• Sum of proper divisors (its aliquot sum) s(n): 240302411424
• 128478516336 is an abundant number, because the sum of its proper divisors (240302411424) is greater than itself. Its abundance is 111823895088

Bases of 128478516336

• Binary: 1110111101001111010101001010001110000₂
• Hexadecimal: 0x1DE9EA9470
• Base-36: 1N0SSHO0

Squares and roots of 128478516336

• 128478516336 squared (128478516336²) is 16506729159899818864896
• 128478516336 cubed (128478516336³) is 2120760072024116434156981712941056
• The square root of 128478516336 is 358438.9994629489
• The cube root of 128478516336 is 5045.9565232701

Scales and comparisons

• 128,478,516,336 seconds is equal to 4,085 years, 11 weeks, 2 days, 20 hours, 45 minutes, 36 seconds.
• To count from 1 to 128,478,516,336 would take you about eight thousand, one hundred seventy 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 128478516336 cubic inches would be around 420.5 feet tall.

Recreational maths with 128478516336

• 128478516336 backwards is 633615874821
• 128478516336 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128478516336's digits is 54
• More coming soon!