21843394

Names of 21843394

• Cardinal: 21843394 can be written as Twenty-one million, eight hundred forty-three thousand, three hundred ninety-four.

Scientific notation

• Scientific notation: 2.1843394 × 10⁷

Factors of 21843394

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1557

Divisors of 21843394

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 37 74 229 458 1289 2578 8473 16946 47693 95386 295181 590362 10921697 21843394
• Sum of all divisors σ(n): 33823800
• Sum of proper divisors (its aliquot sum) s(n): 11980406
• 21843394 is a deficient number, because the sum of its proper divisors (11980406) is less than itself. Its deficiency is 9862988

Bases of 21843394

• Binary: 1010011010100110111000010₂
• Hexadecimal: 0x14D4DC2
• Base-36: D06GY

Squares and roots of 21843394

• 21843394 squared (21843394²) is 477133861439236
• 21843394 cubed (21843394³) is 10422222926158639006984
• The square root of 21843394 is 4673.6916885905
• The cube root of 21843394 is 279.5374761871

Scales and comparisons

• 21,843,394 seconds is equal to 36 weeks, 19 hours, 36 minutes, 34 seconds.
• To count from 1 to 21,843,394 would take you about two weeks!

  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 21843394 cubic inches would be around 23.3 feet tall.

Recreational maths with 21843394

• 21843394 backwards is 49334812
• The number of decimal digits it has is: 8
• The sum of 21843394's digits is 34
• More coming soon!