82720782729725640

Names of 82720782729725640

• Cardinal: 82720782729725640 can be written as Eighty-two quadrillion, seven hundred twenty trillion, seven hundred eighty-two billion, seven hundred twenty-nine million, seven hundred twenty-five thousand, six hundred forty.

Scientific notation

• Scientific notation: 8.272078272972564 × 10¹⁶

Factors of 82720782729725640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 689339856081057

Divisors of 82720782729725640

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 689339856081047 1378679712162094 2068019568243141 2757359424324188 3446699280405235 4136039136486282 5514718848648376 6893398560810470 8272078272972564 10340097841215705 13786797121620940 16544156545945128 20680195682431410 27573594243241880 41360391364862820 82720782729725640
• Sum of all divisors σ(n): 248162348189177280
• Sum of proper divisors (its aliquot sum) s(n): 165441565459451640
• 82720782729725640 is an abundant number, because the sum of its proper divisors (165441565459451640) is greater than itself. Its abundance is 82720782729726000

Bases of 82720782729725640

• Binary: 100100101111000100001110100010110001001011100011011001000₂
• Hexadecimal: 0x125E21D1625C6C8
• Base-36: MMI2IYXYKSO

Squares and roots of 82720782729725640

• 82720782729725640 squared (82720782729725640²) is 6842727895418475705000469673409600
• 82720782729725640 cubed (82720782729725640³) is 566035807515544520395740413407645651036611342144000
• The square root of 82720782729725640 is 287612208.9371827067
• The cube root of 82720782729725640 is 435717.3748583579

Scales and comparisons

• 82,720,782,729,725,640 seconds is equal to 2,630,265,018 years, 32 weeks, 3 days, 5 hours, 34 minutes.
• To count from 1 to 82,720,782,729,725,640 would take you about seven billion, eight hundred ninety million, seven hundred ninety-five thousand and fifty-five 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 82720782729725640 cubic inches would be around 36309.8 feet tall.

Recreational maths with 82720782729725640

• 82720782729725640 backwards is 04652792728702728
• The number of decimal digits it has is: 17
• The sum of 82720782729725640's digits is 78
• More coming soon!