81818130177712

Names of 81818130177712

• Cardinal: 81818130177712 can be written as Eighty-one trillion, eight hundred eighteen billion, one hundred thirty million, one hundred seventy-seven thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 8.1818130177712 × 10¹³

Factors of 81818130177712

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 591739

Divisors of 81818130177712

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 8 16 71 142 284 349 568 698 1136 1396 2792 5584 24779 49558 99116 121801 198232 243602 396464 487204 591317 974408 1182634 1948816 2365268 4730536 8647871 9461072 17295742 34591484 41983507 69182968 83967014 138365936 167934028 206369633 335868056 412739266 671736112 825478532 1650957064 3301914128 14652243943 29304487886 58608975772 72023001917 117217951544 144046003834 234435903088 288092007668 576184015336 1152368030672 5113633136107 10227266272214 20454532544428 40909065088856 81818130177712
• Sum of all divisors σ(n): 161217549760176
• Sum of proper divisors (its aliquot sum) s(n): 79399419582464
• 81818130177712 is a deficient number, because the sum of its proper divisors (79399419582464) is less than itself. Its deficiency is 2418710595248

Bases of 81818130177712

• Binary: 10010100110100111000100100101011101111010110000₂
• Hexadecimal: 0x4A69C495DEB0
• Base-36: T02QA859S

Squares and roots of 81818130177712

• 81818130177712 squared (81818130177712²) is 6694206425777027068701554944
• 81818130177712 cubed (81818130177712³) is 547707452780700964058229788043425452208128
• The square root of 81818130177712 is 9045337.4827980851
• The cube root of 81818130177712 is 43412.6719736921

Scales and comparisons

• 81,818,130,177,712 seconds is equal to 2,601,563 years, 23 weeks, 6 days, 6 hours, 41 minutes, 52 seconds.
• To count from 1 to 81,818,130,177,712 would take you about six million, five hundred three thousand, nine hundred eight 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 81818130177712 cubic inches would be around 3617.7 feet tall.

Recreational maths with 81818130177712

• 81818130177712 backwards is 21777103181818
• The number of decimal digits it has is: 14
• The sum of 81818130177712's digits is 55
• More coming soon!