81244

Names of 81244

• Cardinal: 81244 can be written as Eighty-one thousand, two hundred forty-four.

Scientific notation

• Scientific notation: 8.1244 × 10⁴

Factors of 81244

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1090

Divisors of 81244

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 19 38 76 1069 2138 4276 20311 40622 81244
• Sum of all divisors σ(n): 149800
• Sum of proper divisors (its aliquot sum) s(n): 68556
• 81244 is a deficient number, because the sum of its proper divisors (68556) is less than itself. Its deficiency is 12688

Bases of 81244

• Binary: 10011110101011100₂
• Hexadecimal: 0x13D5C
• Base-36: 1QOS

Squares and roots of 81244

• 81244 squared (81244²) is 6600587536
• 81244 cubed (81244³) is 536258133774784
• The square root of 81244 is 285.0333313843
• The cube root of 81244 is 43.3108891003

Scales and comparisons

• 81,244 seconds is equal to 22 hours, 34 minutes, 4 seconds.
• To count from 1 to 81,244 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 81244 cubic inches would be around 3.6 feet tall.

Recreational maths with 81244

• 81244 backwards is 44218
• 81244 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 81244's digits is 19
• More coming soon!