20640436071920

Names of 20640436071920

• Cardinal: 20640436071920 can be written as Twenty trillion, six hundred forty billion, four hundred thirty-six million, seventy-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.064043607192 × 10¹³

Factors of 20640436071920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8452216

Divisors of 20640436071920

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 4363 8726 17452 21815 30541 34904 43630 61082 69808 87260 122164 152705 174520 244328 305410 349040 488656 610820 1221640 2443280 8447839 16895678 33791356 42239195 59134873 67582712 84478390 118269746 135165424 168956780 236539492 295674365 337913560 473078984 591348730 675827120 946157968 1182697460 2365394920 4730789840 36857921557 73715843114 147431686228 184289607785 258005450899 294863372456 368579215570 516010901798 589726744912 737158431140 1032021803596 1290027254495 1474316862280 2064043607192 2580054508990 2948633724560 4128087214384 5160109017980 10320218035960 20640436071920
• Sum of all divisors σ(n): 54857164154880
• Sum of proper divisors (its aliquot sum) s(n): 34216728082960
• 20640436071920 is an abundant number, because the sum of its proper divisors (34216728082960) is greater than itself. Its abundance is 13576292011040

Bases of 20640436071920

• Binary: 100101100010110111001110111000010110111110000₂
• Hexadecimal: 0x12C5B9DC2DF0
• Base-36: 7BE32PT68

Squares and roots of 20640436071920

• 20640436071920 squared (20640436071920²) is 426027601239016319412486400
• 20640436071920 cubed (20640436071920³) is 8793395468247342124899036832216421888000
• The square root of 20640436071920 is 4543174.6688763791
• The cube root of 20640436071920 is 27430.8725808245

Scales and comparisons

• 20,640,436,071,920 seconds is equal to 656,302 years, 1 week, 1 day, 25 minutes, 20 seconds.
• To count from 1 to 20,640,436,071,920 would take you about one million, six hundred forty thousand, seven hundred fifty-five 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 20640436071920 cubic inches would be around 2285.9 feet tall.

Recreational maths with 20640436071920

• 20640436071920 backwards is 02917063404602
• The number of decimal digits it has is: 14
• The sum of 20640436071920's digits is 44
• More coming soon!