21643000995

Names of 21643000995

• Cardinal: 21643000995 can be written as Twenty-one billion, six hundred forty-three million, nine hundred ninety-five.

Scientific notation

• Scientific notation: 2.1643000995 × 10¹⁰

Factors of 21643000995

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 307276

Divisors of 21643000995

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 7 11 15 21 33 35 55 61 77 105 165 183 231 305 385 427 671 915 1155 1281 2013 2135 3355 4697 6405 10065 14091 23485 70455 307189 921567 1535945 2150323 3379079 4607835 6450969 10137237 10751615 16895395 18738529 23653553 32254845 50686185 56215587 70960659 93692645 118267765 131169703 206123819 281077935 354803295 393509109 618371457 655848515 1030619095 1442866733 1967545545 3091857285 4328600199 7214333665 21643000995
• Sum of all divisors σ(n): 43881477120
• Sum of proper divisors (its aliquot sum) s(n): 22238476125
• 21643000995 is an abundant number, because the sum of its proper divisors (22238476125) is greater than itself. Its abundance is 595475130

Bases of 21643000995

• Binary: 10100001010000001011111110010100011₂
• Hexadecimal: 0x50A05FCA3
• Base-36: 9XXOMG3

Squares and roots of 21643000995

• 21643000995 squared (21643000995²) is 468419492069570990025
• 21643000995 cubed (21643000995³) is 10138003532939119546334210074875
• The square root of 21643000995 is 147115.6041859599
• The cube root of 21643000995 is 2786.8001579039

Scales and comparisons

• 21,643,000,995 seconds is equal to 688 years, 9 weeks, 2 days, 16 hours, 43 minutes, 15 seconds.
• To count from 1 to 21,643,000,995 would take you about one thousand, three hundred seventy-six 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 21643000995 cubic inches would be around 232.2 feet tall.

Recreational maths with 21643000995

• 21643000995 backwards is 59900034612
• The number of decimal digits it has is: 11
• The sum of 21643000995's digits is 39
• More coming soon!