21001343

Names of 21001343

• Cardinal: 21001343 can be written as Twenty-one million, one thousand, three hundred forty-three.

Scientific notation

• Scientific notation: 2.1001343 × 10⁷

Factors of 21001343

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1909224

Divisors of 21001343

• Number of divisors d(n): 4
• Complete list of divisors:
  1 11 1909213 21001343
• Sum of all divisors σ(n): 22910568
• Sum of proper divisors (its aliquot sum) s(n): 1909225
• 21001343 is a deficient number, because the sum of its proper divisors (1909225) is less than itself. Its deficiency is 19092118

Bases of 21001343

• Binary: 1010000000111010001111111₂
• Hexadecimal: 0x140747F
• Base-36: CI4QN

Squares and roots of 21001343

• 21001343 squared (21001343²) is 441056407803649
• 21001343 cubed (21001343³) is 9262776902632309300607
• The square root of 21001343 is 4582.7222259263
• The cube root of 21001343 is 275.8982988385

Scales and comparisons

• 21,001,343 seconds is equal to 34 weeks, 5 days, 1 hour, 42 minutes, 23 seconds.
• To count from 1 to 21,001,343 would take you about fourteen 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 21001343 cubic inches would be around 23 feet tall.

Recreational maths with 21001343

• 21001343 backwards is 34310012
• The number of decimal digits it has is: 8
• The sum of 21001343's digits is 14
• More coming soon!