821942006697

Names of 821942006697

• Cardinal: 821942006697 can be written as Eight hundred twenty-one billion, nine hundred forty-two million, six thousand, six hundred ninety-seven.

Scientific notation

• Scientific notation: 8.21942006697 × 10¹¹

Factors of 821942006697

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 9028

Divisors of 821942006697

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 41 53 63 123 159 287 369 371 477 733 861 1113 2173 2199 2583 3339 5131 6519 6597 8191 15211 15393 19557 24573 30053 38849 45633 46179 57337 73719 90159 116547 136899 172011 210371 270477 271943 335831 349641 434123 516033 631113 815829 1007493 1302369 1592809 1893339 2350817 2447487 3022479 3038861 3907107 4778427 6004003 7052451 9116583 11149663 14335281 17799043 18012009 21157353 27349749 33448989 42028021 53397129 54036027 100346967 124593301 126084063 160191387 246164123 318212159 373779903 378252189 738492369 954636477 1121339709 1723148861 2215477107 2227485113 2863909431 5169446583 6682455339 13046698519 15508339749 20047366017 39140095557 91326889633 117420286671 273980668899 821942006697
• Sum of all divisors σ(n): 1418281353216
• Sum of proper divisors (its aliquot sum) s(n): 596339346519
• 821942006697 is a deficient number, because the sum of its proper divisors (596339346519) is less than itself. Its deficiency is 225602660178

Bases of 821942006697

• Binary: 1011111101011111100011111011001110101001₂
• Hexadecimal: 0xBF5F8FB3A9
• Base-36: AHLF1RC9

Squares and roots of 821942006697

• 821942006697 squared (821942006697²) is 675588662373091192849809
• 821942006697 cubed (821942006697³) is 555294700852680593145949427593170873
• The square root of 821942006697 is 906610.1735018199
• The cube root of 821942006697 is 9367.2848186523

Scales and comparisons

• 821,942,006,697 seconds is equal to 26,135 years, 11 weeks, 16 hours, 4 minutes, 57 seconds.
• To count from 1 to 821,942,006,697 would take you about fifty-two thousand, two hundred seventy 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 821942006697 cubic inches would be around 780.6 feet tall.

Recreational maths with 821942006697

• 821942006697 backwards is 796600249128
• The number of decimal digits it has is: 12
• The sum of 821942006697's digits is 54
• More coming soon!