82128309813

Names of 82128309813

• Cardinal: 82128309813 can be written as Eighty-two billion, one hundred twenty-eight million, three hundred nine thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 8.2128309813 × 10¹⁰

Factors of 82128309813

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 52503

Divisors of 82128309813

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 33 37 99 111 333 407 431 1221 1293 3663 3879 4741 14223 15947 42669 47841 52021 143523 156063 175417 468189 526251 572231 1578753 1716693 1924777 5150079 5774331 17322993 21172547 22421051 63517641 67263153 190552923 201789459 246631561 739894683 829578887 2219684049 2488736661 7466209983 9125367757 27376103271 82128309813
• Sum of all divisors σ(n): 133222931712
• Sum of proper divisors (its aliquot sum) s(n): 51094621899
• 82128309813 is a deficient number, because the sum of its proper divisors (51094621899) is less than itself. Its deficiency is 31033687914

Bases of 82128309813

• Binary: 1001100011111001110101000111000110101₂
• Hexadecimal: 0x131F3A8E35
• Base-36: 11Q92PF9

Squares and roots of 82128309813

• 82128309813 squared (82128309813²) is 6745059272740112094969
• 82128309813 cubed (82128309813³) is 553960317658648391567962510630797
• The square root of 82128309813 is 286580.3723443041
• The cube root of 82128309813 is 4346.7463195393

Scales and comparisons

• 82,128,309,813 seconds is equal to 2,611 years, 22 weeks, 1 day, 3 hours, 23 minutes, 33 seconds.
• To count from 1 to 82,128,309,813 would take you about five thousand, two hundred twenty-two 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 82128309813 cubic inches would be around 362.2 feet tall.

Recreational maths with 82128309813

• 82128309813 backwards is 31890382128
• The number of decimal digits it has is: 11
• The sum of 82128309813's digits is 45
• More coming soon!