20684017840

Names of 20684017840

• Cardinal: 20684017840 can be written as Twenty billion, six hundred eighty-four million, seventeen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.068401784 × 10¹⁰

Factors of 20684017840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5104

Divisors of 20684017840

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 41 80 82 164 205 328 410 656 820 1640 2237 2819 3280 4474 5638 8948 11185 11276 14095 17896 22370 22552 28190 35792 44740 45104 56380 89480 91717 112760 115579 178960 183434 225520 231158 366868 458585 462316 577895 733736 917170 924632 1155790 1467472 1834340 1849264 2311580 3668680 4623160 6306103 7337360 9246320 12612206 25224412 31530515 50448824 63061030 100897648 126122060 252244120 258550223 504488240 517100446 1034200892 1292751115 2068401784 2585502230 4136803568 5171004460 10342008920 20684017840
• Sum of all divisors σ(n): 49302781920
• Sum of proper divisors (its aliquot sum) s(n): 28618764080
• 20684017840 is an abundant number, because the sum of its proper divisors (28618764080) is greater than itself. Its abundance is 7934746240

Bases of 20684017840

• Binary: 10011010000110111010001000010110000₂
• Hexadecimal: 0x4D0DD10B0
• Base-36: 9I2QAB4

Squares and roots of 20684017840

• 20684017840 squared (20684017840²) is 427828594005438265600
• 20684017840 cubed (20684017840³) is 8849214270870602142689058304000
• The square root of 20684017840 is 143819.3931290217
• The cube root of 20684017840 is 2745.0165543687

Scales and comparisons

• 20,684,017,840 seconds is equal to 657 years, 35 weeks, 5 days, 8 hours, 30 minutes, 40 seconds.
• To count from 1 to 20,684,017,840 would take you about one thousand, three hundred fifteen 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 20684017840 cubic inches would be around 228.8 feet tall.

Recreational maths with 20684017840

• 20684017840 backwards is 04871048602
• 20684017840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20684017840's digits is 40
• More coming soon!