21329999

Names of 21329999

• Cardinal: 21329999 can be written as Twenty-one million, three hundred twenty-nine thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 2.1329999 × 10⁷

Factors of 21329999

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21329999

Divisors of 21329999

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21329999
• Sum of all divisors σ(n): 21330000
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21329999 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21329998

Bases of 21329999

• Binary: 1010001010111100001001111₂
• Hexadecimal: 0x145784F
• Base-36: CP6BZ

Squares and roots of 21329999

• 21329999 squared (21329999²) is 454968857340001
• 21329999 cubed (21329999³) is 9704485272093363989999
• The square root of 21329999 is 4618.4411872405
• The cube root of 21329999 is 277.3300596273

Scales and comparisons

• 21,329,999 seconds is equal to 35 weeks, 1 day, 20 hours, 59 minutes, 59 seconds.
• To count from 1 to 21,329,999 would take you about six days!

  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 21329999 cubic inches would be around 23.1 feet tall.

Recreational maths with 21329999

• 21329999 backwards is 99992312
• The number of decimal digits it has is: 8
• The sum of 21329999's digits is 44
• More coming soon!