640486104986742

Names of 640486104986742

• Cardinal: 640486104986742 can be written as Six hundred forty trillion, four hundred eighty-six billion, one hundred four million, nine hundred eighty-six thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 6.40486104986742 × 10¹⁴

Factors of 640486104986742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 336467260

Divisors of 640486104986742

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 7 14 21 42 45329 90658 135987 271974 317303 634606 951909 1903818 336421919 672843838 1009265757 2018531514 2354953433 4709906866 7064860299 14129720598 15249669166351 30499338332702 45749007499053 91498014998106 106747684164457 213495368328914 320243052493371 640486104986742
• Sum of all divisors σ(n): 1464000540825600
• Sum of proper divisors (its aliquot sum) s(n): 823514435838858
• 640486104986742 is an abundant number, because the sum of its proper divisors (823514435838858) is greater than itself. Its abundance is 183028330852116

Bases of 640486104986742

• Binary: 10010001101000010011001010110001010111010001110110₂
• Hexadecimal: 0x24684CAC57476
• Base-36: 6B17961Q46

Squares and roots of 640486104986742

• 640486104986742 squared (640486104986742²) is 410222450681087895439995774564
• 640486104986742 cubed (640486104986742³) is 262741779614845854061880291549210969240830488
• The square root of 640486104986742 is 25307826.9510983893
• The cube root of 640486104986742 is 86199.2004431063

Scales and comparisons

• 640,486,104,986,742 seconds is equal to 20,365,476 years, 51 weeks, 1 day, 12 hours, 45 minutes, 42 seconds.
• To count from 1 to 640,486,104,986,742 would take you about fifty million, nine hundred thirteen thousand, six hundred ninety-two 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 640486104986742 cubic inches would be around 7183.3 feet tall.

Recreational maths with 640486104986742

• 640486104986742 backwards is 247689401684046
• The number of decimal digits it has is: 15
• The sum of 640486104986742's digits is 69
• More coming soon!