21528106

Names of 21528106

• Cardinal: 21528106 can be written as Twenty-one million, five hundred twenty-eight thousand, one hundred six.

Scientific notation

• Scientific notation: 2.1528106 × 10⁷

Factors of 21528106

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10764055

Divisors of 21528106

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 10764053 21528106
• Sum of all divisors σ(n): 32292162
• Sum of proper divisors (its aliquot sum) s(n): 10764056
• 21528106 is a deficient number, because the sum of its proper divisors (10764056) is less than itself. Its deficiency is 10764050

Bases of 21528106

• Binary: 1010010000111111000101010₂
• Hexadecimal: 0x1487E2A
• Base-36: CTF6Y

Squares and roots of 21528106

• 21528106 squared (21528106²) is 463459347947236
• 21528106 cubed (21528106³) is 9977401969298979015016
• The square root of 21528106 is 4639.8390058277
• The cube root of 21528106 is 278.1860028795

Scales and comparisons

• 21,528,106 seconds is equal to 35 weeks, 4 days, 4 hours, 1 minute, 46 seconds.
• To count from 1 to 21,528,106 would take you about two 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 21528106 cubic inches would be around 23.2 feet tall.

Recreational maths with 21528106

• 21528106 backwards is 60182512
• The number of decimal digits it has is: 8
• The sum of 21528106's digits is 25
• More coming soon!