8423040021

Names of 8423040021

• Cardinal: 8423040021 can be written as Eight billion, four hundred twenty-three million, forty thousand and twenty-one.

Scientific notation

• Scientific notation: 8.423040021 × 10⁹

Factors of 8423040021

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 23203981

Divisors of 8423040021

• Number of divisors d(n): 12
• Complete list of divisors:
  1 3 11 33 121 363 23203967 69611901 255243637 765730911 2807680007 8423040021
• Sum of all divisors σ(n): 12344510976
• Sum of proper divisors (its aliquot sum) s(n): 3921470955
• 8423040021 is a deficient number, because the sum of its proper divisors (3921470955) is less than itself. Its deficiency is 4501569066

Bases of 8423040021

• Binary: 111110110000011010110010000010101₂
• Hexadecimal: 0x1F60D6415
• Base-36: 3VAUZ9X

Squares and roots of 8423040021

• 8423040021 squared (8423040021²) is 70947603195367680441
• 8423040021 cubed (8423040021³) is 597594501108609454164481929261
• The square root of 8423040021 is 91777.1214464695
• The cube root of 8423040021 is 2034.6495719947

Scales and comparisons

• 8,423,040,021 seconds is equal to 267 years, 42 weeks, 6 days, 21 hours, 20 minutes, 21 seconds.
• To count from 1 to 8,423,040,021 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 8423040021 cubic inches would be around 169.6 feet tall.

Recreational maths with 8423040021

• 8423040021 backwards is 1200403248
• The number of decimal digits it has is: 10
• The sum of 8423040021's digits is 24
• More coming soon!