21443999

Names of 21443999

• Cardinal: 21443999 can be written as Twenty-one million, four hundred forty-three thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 2.1443999 × 10⁷

Factors of 21443999

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21443999

Divisors of 21443999

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21443999
• Sum of all divisors σ(n): 21444000
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21443999 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21443998

Bases of 21443999

• Binary: 1010001110011010110011111₂
• Hexadecimal: 0x147359F
• Base-36: CRMAN

Squares and roots of 21443999

• 21443999 squared (21443999²) is 459845093112001
• 21443999 cubed (21443999³) is 9860917716848656331999
• The square root of 21443999 is 4630.7665672111
• The cube root of 21443999 is 277.8232534199

Scales and comparisons

• 21,443,999 seconds is equal to 35 weeks, 3 days, 4 hours, 39 minutes, 59 seconds.
• To count from 1 to 21,443,999 would take you about six 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 21443999 cubic inches would be around 23.2 feet tall.

Recreational maths with 21443999

• 21443999 backwards is 99934412
• The number of decimal digits it has is: 8
• The sum of 21443999's digits is 41
• More coming soon!