40987642

Names of 40987642

• Cardinal: 40987642 can be written as Forty million, nine hundred eighty-seven thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 4.0987642 × 10⁷

Factors of 40987642

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 661124

Divisors of 40987642

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 31 62 661091 1322182 20493821 40987642
• Sum of all divisors σ(n): 63464832
• Sum of proper divisors (its aliquot sum) s(n): 22477190
• 40987642 is a deficient number, because the sum of its proper divisors (22477190) is less than itself. Its deficiency is 18510452

Bases of 40987642

• Binary: 10011100010110101111111010₂
• Hexadecimal: 0x2716BFA
• Base-36: OEI9M

Squares and roots of 40987642

• 40987642 squared (40987642²) is 1679986796720164
• 40987642 cubed (40987642³) is 68858697388692856213288
• The square root of 40987642 is 6402.1591670311
• The cube root of 40987642 is 344.7870757857

Scales and comparisons

• 40,987,642 seconds is equal to 1 year, 15 weeks, 5 days, 9 hours, 27 minutes, 22 seconds.
• To count from 1 to 40,987,642 would take you about forty-nine 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 40987642 cubic inches would be around 28.7 feet tall.

Recreational maths with 40987642

• 40987642 backwards is 24678904
• The number of decimal digits it has is: 8
• The sum of 40987642's digits is 40
• More coming soon!