40018508821

Names of 40018508821

• Cardinal: 40018508821 can be written as Forty billion, eighteen million, five hundred eight thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 4.0018508821 × 10¹⁰

Factors of 40018508821

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 87568310

Divisors of 40018508821

• Number of divisors d(n): 4
• Complete list of divisors:
  1 457 87567853 40018508821
• Sum of all divisors σ(n): 40106077132
• Sum of proper divisors (its aliquot sum) s(n): 87568311
• 40018508821 is a deficient number, because the sum of its proper divisors (87568311) is less than itself. Its deficiency is 39930940510

Bases of 40018508821

• Binary: 100101010001010010011111110000010101₂
• Hexadecimal: 0x95149FC15
• Base-36: IDTZJ11

Squares and roots of 40018508821

• 40018508821 squared (40018508821²) is 1601481048256454810041
• 40018508821 cubed (40018508821³) is 64088883456315263485813637871661
• The square root of 40018508821 is 200046.2667009809
• The cube root of 40018508821 is 3420.4793059921

Scales and comparisons

• 40,018,508,821 seconds is equal to 1,272 years, 24 weeks, 1 day, 4 hours, 27 minutes, 1 second.
• To count from 1 to 40,018,508,821 would take you about two thousand, five hundred forty-four 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 40018508821 cubic inches would be around 285 feet tall.

Recreational maths with 40018508821

• 40018508821 backwards is 12880581004
• The number of decimal digits it has is: 11
• The sum of 40018508821's digits is 37
• More coming soon!