20997762720

Names of 20997762720

• Cardinal: 20997762720 can be written as Twenty billion, nine hundred ninety-seven million, seven hundred sixty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.099776272 × 10¹⁰

Factors of 20997762720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3976870

Divisors of 20997762720

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 66 80 88 96 110 120 132 160 165 176 220 240 264 330 352 440 480 528 660 880 1056 1320 1760 2640 5280 3976849 7953698 11930547 15907396 19884245 23861094 31814792 39768490 43745339 47722188 59652735 63629584 79536980 87490678 95444376 119305470 127259168 131236017 159073960 174981356 190888752 218726695 238610940 262472034 318147920 349962712 381777504 437453390 477221880 524944068 636295840 656180085 699925424 874906780 954443760 1049888136 1312360170 1399850848 1749813560 1908887520 2099776272 2624720340 3499627120 4199552544 5249440680 6999254240 10498881360 20997762720
• Sum of all divisors σ(n): 72155966400
• Sum of proper divisors (its aliquot sum) s(n): 51158203680
• 20997762720 is an abundant number, because the sum of its proper divisors (51158203680) is greater than itself. Its abundance is 30160440960

Bases of 20997762720

• Binary: 10011100011100100000110111010100000₂
• Hexadecimal: 0x4E3906EA0
• Base-36: 9N9IXEO

Squares and roots of 20997762720

• 20997762720 squared (20997762720²) is 440906039245421798400
• 20997762720 cubed (20997762720³) is 9258040393890374769118875648000
• The square root of 20997762720 is 144906.0479069111
• The cube root of 20997762720 is 2758.8261969353

Scales and comparisons

• 20,997,762,720 seconds is equal to 667 years, 34 weeks, 3 days, 15 hours, 52 minutes.
• To count from 1 to 20,997,762,720 would take you about one thousand, three hundred thirty-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 20997762720 cubic inches would be around 229.9 feet tall.

Recreational maths with 20997762720

• 20997762720 backwards is 02726779902
• The number of decimal digits it has is: 11
• The sum of 20997762720's digits is 51
• More coming soon!