21162010

Names of 21162010

• Cardinal: 21162010 can be written as Twenty-one million, one hundred sixty-two thousand and ten.

Scientific notation

• Scientific notation: 2.116201 × 10⁷

Factors of 21162010

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1030

Divisors of 21162010

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 19 38 95 127 190 254 635 877 1270 1754 2413 4385 4826 8770 12065 16663 24130 33326 83315 111379 166630 222758 556895 1113790 2116201 4232402 10581005 21162010
• Sum of all divisors σ(n): 40458240
• Sum of proper divisors (its aliquot sum) s(n): 19296230
• 21162010 is a deficient number, because the sum of its proper divisors (19296230) is less than itself. Its deficiency is 1865780

Bases of 21162010

• Binary: 1010000101110100000011010₂
• Hexadecimal: 0x142E81A
• Base-36: CLKPM

Squares and roots of 21162010

• 21162010 squared (21162010²) is 447830667240100
• 21162010 cubed (21162010³) is 9476997058441668601000
• The square root of 21162010 is 4600.2184730729
• The cube root of 21162010 is 276.6000823623

Scales and comparisons

• 21,162,010 seconds is equal to 34 weeks, 6 days, 22 hours, 20 minutes, 10 seconds.
• To count from 1 to 21,162,010 would take you about three 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 21162010 cubic inches would be around 23.1 feet tall.

Recreational maths with 21162010

• 21162010 backwards is 01026112
• The number of decimal digits it has is: 8
• The sum of 21162010's digits is 13
• More coming soon!