40081021

Names of 40081021

• Cardinal: 40081021 can be written as Forty million, eighty-one thousand and twenty-one.

Scientific notation

• Scientific notation: 4.0081021 × 10⁷

Factors of 40081021

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 40081021

Divisors of 40081021

• Number of divisors d(n): 2
• Complete list of divisors:
  1 40081021
• Sum of all divisors σ(n): 40081022
• Sum of proper divisors (its aliquot sum) s(n): 1
• 40081021 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 40081020

Bases of 40081021

• Binary: 10011000111001011001111101₂
• Hexadecimal: 0x263967D
• Base-36: NV2PP

Squares and roots of 40081021

• 40081021 squared (40081021²) is 1606488244402441
• 40081021 cubed (40081021³) is 64389689060147370172261
• The square root of 40081021 is 6330.9573525653
• The cube root of 40081021 is 342.2259402101

Scales and comparisons

• 40,081,021 seconds is equal to 1 year, 14 weeks, 1 day, 21 hours, 37 minutes, 1 second.
• To count from 1 to 40,081,021 would take you about forty-seven weeks!

  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 40081021 cubic inches would be around 28.5 feet tall.

Recreational maths with 40081021

• 40081021 backwards is 12018004
• The number of decimal digits it has is: 8
• The sum of 40081021's digits is 16
• More coming soon!