212221890

Names of 212221890

• Cardinal: 212221890 can be written as Two hundred twelve million, two hundred twenty-one thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 2.1222189 × 10⁸

Factors of 212221890

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2298

Divisors of 212221890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 421 842 1263 1867 2105 2526 3734 3789 4210 5601 6315 7578 9335 11202 11367 12630 16803 18670 18945 22734 28005 33606 37890 50409 56010 56835 84015 100818 113670 168030 252045 504090 786007 1572014 2358021 3930035 4716042 7074063 7860070 11790105 14148126 21222189 23580210 35370315 42444378 70740630 106110945 212221890
• Sum of all divisors σ(n): 567573120
• Sum of proper divisors (its aliquot sum) s(n): 355351230
• 212221890 is an abundant number, because the sum of its proper divisors (355351230) is greater than itself. Its abundance is 143129340

Bases of 212221890

• Binary: 1100101001100011111111000010₂
• Hexadecimal: 0xCA63FC2
• Base-36: 3ICNGI

Squares and roots of 212221890

• 212221890 squared (212221890²) is 45038130595172100
• 212221890 cubed (212221890³) is 9558077196974247937269000
• The square root of 212221890 is 14567.8375196869
• The cube root of 212221890 is 596.4811532059

Scales and comparisons

• 212,221,890 seconds is equal to 6 years, 38 weeks, 6 days, 6 hours, 31 minutes, 30 seconds.
• To count from 1 to 212,221,890 would take you about ten years!

  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 212221890 cubic inches would be around 49.7 feet tall.

Recreational maths with 212221890

• 212221890 backwards is 098122212
• 212221890 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 212221890's digits is 27
• More coming soon!