140021891

Names of 140021891

• Cardinal: 140021891 can be written as One hundred forty million, twenty-one thousand, eight hundred ninety-one.

Scientific notation

• Scientific notation: 1.40021891 × 10⁸

Factors of 140021891

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 6625

Divisors of 140021891

• Number of divisors d(n): 8
• Complete list of divisors:
  1 79 283 6263 22357 494777 1772429 140021891
• Sum of all divisors σ(n): 142318080
• Sum of proper divisors (its aliquot sum) s(n): 2296189
• 140021891 is a deficient number, because the sum of its proper divisors (2296189) is less than itself. Its deficiency is 137725702

Bases of 140021891

• Binary: 1000010110001001000010000011₂
• Hexadecimal: 0x8589083
• Base-36: 2BD5KZ

Squares and roots of 140021891

• 140021891 squared (140021891²) is 19606129959215881
• 140021891 cubed (140021891³) is 2745287392081160534850971
• The square root of 140021891 is 11833.0845936299
• The cube root of 140021891 is 519.2764727957

Scales and comparisons

• 140,021,891 seconds is equal to 4 years, 23 weeks, 3 days, 14 hours, 58 minutes, 11 seconds.
• To count from 1 to 140,021,891 would take you about six 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 140021891 cubic inches would be around 43.3 feet tall.

Recreational maths with 140021891

• 140021891 backwards is 198120041
• The number of decimal digits it has is: 9
• The sum of 140021891's digits is 26
• More coming soon!