40639

Names of 40639

• Cardinal: 40639 can be written as Forty thousand, six hundred thirty-nine.

Scientific notation

• Scientific notation: 4.0639 × 10⁴

Factors of 40639

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 40639

Divisors of 40639

• Number of divisors d(n): 2
• Complete list of divisors:
  1 40639
• Sum of all divisors σ(n): 40640
• Sum of proper divisors (its aliquot sum) s(n): 1
• 40639 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 40638

Bases of 40639

• Binary: 1001111010111111₂
• Hexadecimal: 0x9EBF
• Base-36: VCV

Squares and roots of 40639

• 40639 squared (40639²) is 1651528321
• 40639 cubed (40639³) is 67116459437119
• The square root of 40639 is 201.5911704415
• The cube root of 40639 is 34.3806701391

Scales and comparisons

• 40,639 seconds is equal to 11 hours, 17 minutes, 19 seconds.
• To count from 1 to 40,639 would take you about eleven hours.

  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 40639 cubic inches would be around 2.9 feet tall.

Recreational maths with 40639

• 40639 backwards is 93604
• The number of decimal digits it has is: 5
• The sum of 40639's digits is 22
• More coming soon!