8421431843

Names of 8421431843

• Cardinal: 8421431843 can be written as Eight billion, four hundred twenty-one million, four hundred thirty-one thousand, eight hundred forty-three.

Scientific notation

• Scientific notation: 8.421431843 × 10⁹

Factors of 8421431843

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 765584724

Divisors of 8421431843

• Number of divisors d(n): 4
• Complete list of divisors:
  1 11 765584713 8421431843
• Sum of all divisors σ(n): 9187016568
• Sum of proper divisors (its aliquot sum) s(n): 765584725
• 8421431843 is a deficient number, because the sum of its proper divisors (765584725) is less than itself. Its deficiency is 7655847118

Bases of 8421431843

• Binary: 111110101111101001101101000100011₂
• Hexadecimal: 0x1F5F4DA23
• Base-36: 3V9WIEB

Squares and roots of 8421431843

• 8421431843 squared (8421431843²) is 70920514286294376649
• 8421431843 cubed (8421431843³) is 597252277332535881983724234107
• The square root of 8421431843 is 91768.3597052927
• The cube root of 8421431843 is 2034.5200745317

Scales and comparisons

• 8,421,431,843 seconds is equal to 267 years, 40 weeks, 2 days, 6 hours, 37 minutes, 23 seconds.
• To count from 1 to 8,421,431,843 would take you about five hundred thirty-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 8421431843 cubic inches would be around 169.5 feet tall.

Recreational maths with 8421431843

• 8421431843 backwards is 3481341248
• The number of decimal digits it has is: 10
• The sum of 8421431843's digits is 38
• More coming soon!