40136678205716721

Names of 40136678205716721

• Cardinal: 40136678205716721 can be written as Forty quadrillion, one hundred thirty-six trillion, six hundred seventy-eight billion, two hundred five million, seven hundred sixteen thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 4.0136678205716721 × 10¹⁶

Factors of 40136678205716721

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 786993690308191

Divisors of 40136678205716721

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 17 51 786993690308171 2360981070924513 13378892735238907 40136678205716721
• Sum of all divisors σ(n): 56663545702188384
• Sum of proper divisors (its aliquot sum) s(n): 16526867496471663
• 40136678205716721 is a deficient number, because the sum of its proper divisors (16526867496471663) is less than itself. Its deficiency is 23609810709245058

Bases of 40136678205716721

• Binary: 10001110100110000001100010011110111010100111100011110001₂
• Hexadecimal: 0x8E98189EEA78F1
• Base-36: AZ79JF5D1BL

Squares and roots of 40136678205716721

• 40136678205716721 squared (40136678205716721²) is 1610952937389255622305045298991841
• 40136678205716721 cubed (40136678205716721³) is 64658299652546669537183188192457627509264136273361
• The square root of 40136678205716721 is 200341404.1223549003
• The cube root of 40136678205716721 is 342384.2739167655

Scales and comparisons

• 40,136,678,205,716,721 seconds is equal to 1,276,222,216 years, 2 weeks, 2 days, 5 hours, 45 minutes, 21 seconds.
• To count from 1 to 40,136,678,205,716,721 would take you about three billion, eight hundred twenty-eight million, six hundred sixty-six thousand, six hundred forty-eight 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 40136678205716721 cubic inches would be around 28532 feet tall.

Recreational maths with 40136678205716721

• 40136678205716721 backwards is 12761750287663104
• The number of decimal digits it has is: 17
• The sum of 40136678205716721's digits is 66
• More coming soon!