81443

Names of 81443

• Cardinal: 81443 can be written as Eighty-one thousand, four hundred forty-three.

Scientific notation

• Scientific notation: 8.1443 × 10⁴

Factors of 81443

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3564

Divisors of 81443

• Number of divisors d(n): 4
• Complete list of divisors:
  1 23 3541 81443
• Sum of all divisors σ(n): 85008
• Sum of proper divisors (its aliquot sum) s(n): 3565
• 81443 is a deficient number, because the sum of its proper divisors (3565) is less than itself. Its deficiency is 77878

Bases of 81443

• Binary: 10011111000100011₂
• Hexadecimal: 0x13E23
• Base-36: 1QUB

Squares and roots of 81443

• 81443 squared (81443²) is 6632962249
• 81443 cubed (81443³) is 540208344445307
• The square root of 81443 is 285.3821998653
• The cube root of 81443 is 43.3462223329

Scales and comparisons

• 81,443 seconds is equal to 22 hours, 37 minutes, 23 seconds.
• To count from 1 to 81,443 would take you about twenty-two 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 81443 cubic inches would be around 3.6 feet tall.

Recreational maths with 81443

• 81443 backwards is 34418
• The number of decimal digits it has is: 5
• The sum of 81443's digits is 20
• More coming soon!