21047443

Names of 21047443

• Cardinal: 21047443 can be written as Twenty-one million, forty-seven thousand, four hundred forty-three.

Scientific notation

• Scientific notation: 2.1047443 × 10⁷

Factors of 21047443

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21047443

Divisors of 21047443

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21047443
• Sum of all divisors σ(n): 21047444
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21047443 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21047442

Bases of 21047443

• Binary: 1010000010010100010010011₂
• Hexadecimal: 0x1412893
• Base-36: CJ4B7

Squares and roots of 21047443

• 21047443 squared (21047443²) is 442994856838249
• 21047443 cubed (21047443³) is 9323908998596206047307
• The square root of 21047443 is 4587.7492302871
• The cube root of 21047443 is 276.1000258817

Scales and comparisons

• 21,047,443 seconds is equal to 34 weeks, 5 days, 14 hours, 30 minutes, 43 seconds.
• To count from 1 to 21,047,443 would take you about nine 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 21047443 cubic inches would be around 23 feet tall.

Recreational maths with 21047443

• 21047443 backwards is 34474012
• The number of decimal digits it has is: 8
• The sum of 21047443's digits is 25
• More coming soon!