21059681664

Names of 21059681664

• Cardinal: 21059681664 can be written as Twenty-one billion, fifty-nine million, six hundred eighty-one thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1059681664 × 10¹⁰

Factors of 21059681664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 25356

Divisors of 21059681664

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 313 336 384 448 626 672 896 939 1252 1344 1878 2191 2504 2688 3756 4382 5008 6573 7512 8764 10016 13146 15024 17528 20032 25031 26292 30048 35056 40064 50062 52584 60096 70112 75093 100124 105168 120192 140224 150186 175217 200248 210336 280448 300372 350434 400496 420672 525651 600744 700868 800992 841344 1051302 1201488 1401736 1601984 2102604 2402976 2803472 3203968 4205208 4805952 5606944 7834703 8410416 9611904 11213888 15669406 16820832 22427776 23504109 31338812 33641664 47008218 54842921 62677624 67283328 94016436 109685842 125355248 164528763 188032872 219371684 250710496 329057526 376065744 438743368 501420992 658115052 752131488 877486736 1002841984 1316230104 1504262976 1754973472 2632460208 3008525952 3509946944 5264920416 7019893888 10529840832 21059681664
• Sum of all divisors σ(n): 64137991680
• Sum of proper divisors (its aliquot sum) s(n): 43078310016
• 21059681664 is an abundant number, because the sum of its proper divisors (43078310016) is greater than itself. Its abundance is 22018628352

Bases of 21059681664

• Binary: 10011100111010000010011110110000000₂
• Hexadecimal: 0x4E7413D80
• Base-36: 9OAE2DC

Squares and roots of 21059681664

• 21059681664 squared (21059681664²) is 443510191789017808896
• 21059681664 cubed (21059681664³) is 9340183453816301706576547282944
• The square root of 21059681664 is 145119.5426674161
• The cube root of 21059681664 is 2761.5353104629

Scales and comparisons

• 21,059,681,664 seconds is equal to 669 years, 32 weeks, 6 days, 7 hours, 34 minutes, 24 seconds.
• To count from 1 to 21,059,681,664 would take you about one thousand, three hundred thirty-nine 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 21059681664 cubic inches would be around 230.1 feet tall.

Recreational maths with 21059681664

• 21059681664 backwards is 46618695012
• 21059681664 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21059681664's digits is 48
• More coming soon!