21622130

Names of 21622130

• Cardinal: 21622130 can be written as Twenty-one million, six hundred twenty-two thousand, one hundred thirty.

Scientific notation

• Scientific notation: 2.162213 × 10⁷

Factors of 21622130

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 127213

Divisors of 21622130

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 5 10 17 34 85 170 127189 254378 635945 1271890 2162213 4324426 10811065 21622130
• Sum of all divisors σ(n): 41209560
• Sum of proper divisors (its aliquot sum) s(n): 19587430
• 21622130 is a deficient number, because the sum of its proper divisors (19587430) is less than itself. Its deficiency is 2034700

Bases of 21622130

• Binary: 1010010011110110101110010₂
• Hexadecimal: 0x149ED72
• Base-36: CVFQQ

Squares and roots of 21622130

• 21622130 squared (21622130²) is 467516505736900
• 21622130 cubed (21622130³) is 10108702664188997597000
• The square root of 21622130 is 4649.9602148837
• The cube root of 21622130 is 278.5904071475

Scales and comparisons

• 21,622,130 seconds is equal to 35 weeks, 5 days, 6 hours, 8 minutes, 50 seconds.
• To count from 1 to 21,622,130 would take you about four 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 21622130 cubic inches would be around 23.2 feet tall.

Recreational maths with 21622130

• 21622130 backwards is 03122612
• 21622130 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21622130's digits is 17
• More coming soon!