81371

Names of 81371

• Cardinal: 81371 can be written as Eighty-one thousand, three hundred seventy-one.

Scientific notation

• Scientific notation: 8.1371 × 10⁴

Factors of 81371

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 81371

Divisors of 81371

• Number of divisors d(n): 2
• Complete list of divisors:
  1 81371
• Sum of all divisors σ(n): 81372
• Sum of proper divisors (its aliquot sum) s(n): 1
• 81371 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 81370

Bases of 81371

• Binary: 10011110111011011₂
• Hexadecimal: 0x13DDB
• Base-36: 1QSB

Squares and roots of 81371

• 81371 squared (81371²) is 6621239641
• 81371 cubed (81371³) is 538776890827811
• The square root of 81371 is 285.2560253527
• The cube root of 81371 is 43.3334451015

Scales and comparisons

• 81,371 seconds is equal to 22 hours, 36 minutes, 11 seconds.
• To count from 1 to 81,371 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 81371 cubic inches would be around 3.6 feet tall.

Recreational maths with 81371

• 81371 backwards is 17318
• 81371 is a twin prime! Its twin is 81373
• The number of decimal digits it has is: 5
• The sum of 81371's digits is 20
• More coming soon!