21316609

Names of 21316609

• Cardinal: 21316609 can be written as Twenty-one million, three hundred sixteen thousand, six hundred nine.

Scientific notation

• Scientific notation: 2.1316609 × 10⁷

Factors of 21316609

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21316609

Divisors of 21316609

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21316609
• Sum of all divisors σ(n): 21316610
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21316609 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21316608

Bases of 21316609

• Binary: 1010001010100010000000001₂
• Hexadecimal: 0x1454401
• Base-36: COW01

Squares and roots of 21316609

• 21316609 squared (21316609²) is 454397819258881
• 21316609 cubed (21316609³) is 9686220643594236054529
• The square root of 21316609 is 4616.9913363575
• The cube root of 21316609 is 277.2720157613

Scales and comparisons

• 21,316,609 seconds is equal to 35 weeks, 1 day, 17 hours, 16 minutes, 49 seconds.
• To count from 1 to 21,316,609 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 21316609 cubic inches would be around 23.1 feet tall.

Recreational maths with 21316609

• 21316609 backwards is 90661312
• The number of decimal digits it has is: 8
• The sum of 21316609's digits is 28
• More coming soon!