21222706

Names of 21222706

• Cardinal: 21222706 can be written as Twenty-one million, two hundred twenty-two thousand, seven hundred six.

Scientific notation

• Scientific notation: 2.1222706 × 10⁷

Factors of 21222706

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 145436

Divisors of 21222706

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 73 146 145361 290722 10611353 21222706
• Sum of all divisors σ(n): 32270364
• Sum of proper divisors (its aliquot sum) s(n): 11047658
• 21222706 is a deficient number, because the sum of its proper divisors (11047658) is less than itself. Its deficiency is 10175048

Bases of 21222706

• Binary: 1010000111101010100110010₂
• Hexadecimal: 0x143D532
• Base-36: CMVJM

Squares and roots of 21222706

• 21222706 squared (21222706²) is 450403249962436
• 21222706 cubed (21222706³) is 9558775755397290271816
• The square root of 21222706 is 4606.8108274597
• The cube root of 21222706 is 276.8642742389

Scales and comparisons

• 21,222,706 seconds is equal to 35 weeks, 15 hours, 11 minutes, 46 seconds.
• To count from 1 to 21,222,706 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 21222706 cubic inches would be around 23.1 feet tall.

Recreational maths with 21222706

• 21222706 backwards is 60722212
• The number of decimal digits it has is: 8
• The sum of 21222706's digits is 22
• More coming soon!