21220223

Names of 21220223

• Cardinal: 21220223 can be written as Twenty-one million, two hundred twenty thousand, two hundred twenty-three.

Scientific notation

• Scientific notation: 2.1220223 × 10⁷

Factors of 21220223

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21220223

Divisors of 21220223

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21220223
• Sum of all divisors σ(n): 21220224
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21220223 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21220222

Bases of 21220223

• Binary: 1010000111100101101111111₂
• Hexadecimal: 0x143CB7F
• Base-36: CMTMN

Squares and roots of 21220223

• 21220223 squared (21220223²) is 450297864169729
• 21220223 cubed (21220223³) is 9555421094105359229567
• The square root of 21220223 is 4606.5413272865
• The cube root of 21220223 is 276.8534763573

Scales and comparisons

• 21,220,223 seconds is equal to 35 weeks, 14 hours, 30 minutes, 23 seconds.
• To count from 1 to 21,220,223 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 21220223 cubic inches would be around 23.1 feet tall.

Recreational maths with 21220223

• 21220223 backwards is 32202212
• The number of decimal digits it has is: 8
• The sum of 21220223's digits is 14
• More coming soon!