81418

Names of 81418

• Cardinal: 81418 can be written as Eighty-one thousand, four hundred eighteen.

Scientific notation

• Scientific notation: 8.1418 × 10⁴

Factors of 81418

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 40711

Divisors of 81418

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 40709 81418
• Sum of all divisors σ(n): 122130
• Sum of proper divisors (its aliquot sum) s(n): 40712
• 81418 is a deficient number, because the sum of its proper divisors (40712) is less than itself. Its deficiency is 40706

Bases of 81418

• Binary: 10011111000001010₂
• Hexadecimal: 0x13E0A
• Base-36: 1QTM

Squares and roots of 81418

• 81418 squared (81418²) is 6628890724
• 81418 cubed (81418³) is 539711024966632
• The square root of 81418 is 285.3383955937
• The cube root of 81418 is 43.3417866481

Scales and comparisons

• 81,418 seconds is equal to 22 hours, 36 minutes, 58 seconds.
• To count from 1 to 81,418 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 81418 cubic inches would be around 3.6 feet tall.

Recreational maths with 81418

• 81418 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 5
• The sum of 81418's digits is 22
• More coming soon!