21818122

Names of 21818122

• Cardinal: 21818122 can be written as Twenty-one million, eight hundred eighteen thousand, one hundred twenty-two.

Scientific notation

• Scientific notation: 2.1818122 × 10⁷

Factors of 21818122

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 474332

Divisors of 21818122

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 23 46 474307 948614 10909061 21818122
• Sum of all divisors σ(n): 34150176
• Sum of proper divisors (its aliquot sum) s(n): 12332054
• 21818122 is a deficient number, because the sum of its proper divisors (12332054) is less than itself. Its deficiency is 9486068

Bases of 21818122

• Binary: 1010011001110101100001010₂
• Hexadecimal: 0x14CEB0A
• Base-36: CZMYY

Squares and roots of 21818122

• 21818122 squared (21818122²) is 476030447606884
• 21818122 cubed (21818122³) is 10386090381601603151848
• The square root of 21818122 is 4670.9872618109
• The cube root of 21818122 is 279.4296297401

Scales and comparisons

• 21,818,122 seconds is equal to 36 weeks, 12 hours, 35 minutes, 22 seconds.
• To count from 1 to 21,818,122 would take you about two weeks!

  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 21818122 cubic inches would be around 23.3 feet tall.

Recreational maths with 21818122

• 21818122 backwards is 22181812
• The number of decimal digits it has is: 8
• The sum of 21818122's digits is 25
• More coming soon!