21043

Names of 21043

• Cardinal: 21043 can be written as Twenty-one thousand and forty-three.

Scientific notation

• Scientific notation: 2.1043 × 10⁴

Factors of 21043

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1924

Divisors of 21043

• Number of divisors d(n): 4
• Complete list of divisors:
  1 11 1913 21043
• Sum of all divisors σ(n): 22968
• Sum of proper divisors (its aliquot sum) s(n): 1925
• 21043 is a deficient number, because the sum of its proper divisors (1925) is less than itself. Its deficiency is 19118

Bases of 21043

• Binary: 101001000110011₂
• Hexadecimal: 0x5233
• Base-36: G8J

Squares and roots of 21043

• 21043 squared (21043²) is 442807849
• 21043 cubed (21043³) is 9318005566507
• The square root of 21043 is 145.0620556867
• The cube root of 21043 is 27.6080596779

Scales and comparisons

• 21,043 seconds is equal to 5 hours, 50 minutes, 43 seconds.
• To count from 1 to 21,043 would take you about five 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 21043 cubic inches would be around 2.3 feet tall.

Recreational maths with 21043

• 21043 backwards is 34012
• The number of decimal digits it has is: 5
• The sum of 21043's digits is 10
• More coming soon!