56781

Names of 56781

• Cardinal: 56781 can be written as Fifty-six thousand, seven hundred eighty-one.

Scientific notation

• Scientific notation: 5.6781 × 10⁴

Factors of 56781

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 704

Divisors of 56781

• Number of divisors d(n): 10
• Complete list of divisors:
  1 3 9 27 81 701 2103 6309 18927 56781
• Sum of all divisors σ(n): 84942
• Sum of proper divisors (its aliquot sum) s(n): 28161
• 56781 is a deficient number, because the sum of its proper divisors (28161) is less than itself. Its deficiency is 28620

Bases of 56781

• Binary: 1101110111001101₂
• Hexadecimal: 0xDDCD
• Base-36: 17T9

Squares and roots of 56781

• 56781 squared (56781²) is 3224081961
• 56781 cubed (56781³) is 183066597827541
• The square root of 56781 is 238.2876413077
• The cube root of 56781 is 38.4356602331

Scales and comparisons

• 56,781 seconds is equal to 15 hours, 46 minutes, 21 seconds.
• To count from 1 to 56,781 would take you about fifteen 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 56781 cubic inches would be around 3.2 feet tall.

Recreational maths with 56781

• 56781 backwards is 18765
• 56781 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 56781's digits is 27
• More coming soon!