21424200

Names of 21424200

• Cardinal: 21424200 can be written as Twenty-one million, four hundred twenty-four thousand, two hundred.

Scientific notation

• Scientific notation: 2.14242 × 10⁷

Factors of 21424200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5118

Divisors of 21424200

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 50 56 60 70 75 84 100 105 120 140 150 168 175 200 210 280 300 350 420 525 600 700 840 1050 1400 2100 4200 5101 10202 15303 20404 25505 30606 35707 40808 51010 61212 71414 76515 102020 107121 122424 127525 142828 153030 178535 204040 214242 255050 285656 306060 357070 382575 428484 510100 535605 612120 714140 765150 856968 892675 1020200 1071210 1428280 1530300 1785350 2142420 2678025 3060600 3570700 4284840 5356050 7141400 10712100 21424200
• Sum of all divisors σ(n): 75917760
• Sum of proper divisors (its aliquot sum) s(n): 54493560
• 21424200 is an abundant number, because the sum of its proper divisors (54493560) is greater than itself. Its abundance is 33069360

Bases of 21424200

• Binary: 1010001101110100001001000₂
• Hexadecimal: 0x146E848
• Base-36: CR70O

Squares and roots of 21424200

• 21424200 squared (21424200²) is 458996345640000
• 21424200 cubed (21424200³) is 9833629508260488000000
• The square root of 21424200 is 4628.6283065289
• The cube root of 21424200 is 277.7377234095

Scales and comparisons

• 21,424,200 seconds is equal to 35 weeks, 2 days, 23 hours, 10 minutes.
• To count from 1 to 21,424,200 would take you about twenty-two hours!

  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 21424200 cubic inches would be around 23.1 feet tall.

Recreational maths with 21424200

• 21424200 backwards is 00242412
• 21424200 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21424200's digits is 15
• More coming soon!