81742117539706

Names of 81742117539706

• Cardinal: 81742117539706 can be written as Eighty-one trillion, seven hundred forty-two billion, one hundred seventeen million, five hundred thirty-nine thousand, seven hundred six.

Scientific notation

• Scientific notation: 8.1742117539706 × 10¹³

Factors of 81742117539706

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6464362

Divisors of 81742117539706

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 13 23 26 46 169 299 338 598 1627 3254 3887 7774 21151 37421 42302 74842 274963 486473 549926 972946 6324149 6462697 12648298 12925394 84015061 148642031 168030122 297284062 1092195793 1932346403 2184391586 3864692806 10514808019 21029616038 25120503239 50241006478 136692504247 241840584437 273385008494 483681168874 1777002555211 3143927597681 3554005110422 6287855195362 40871058769853 81742117539706
• Sum of all divisors σ(n): 138628284404544
• Sum of proper divisors (its aliquot sum) s(n): 56886166864838
• 81742117539706 is a deficient number, because the sum of its proper divisors (56886166864838) is less than itself. Its deficiency is 24855950674868

Bases of 81742117539706

• Binary: 10010100101100000010001111000010000111101111010₂
• Hexadecimal: 0x4A5811E10F7A
• Base-36: SZ3T69IEY

Squares and roots of 81742117539706

• 81742117539706 squared (81742117539706²) is 6681773779875111286486566436
• 81742117539706 cubed (81742117539706³) is 546182337688276991809282244524303836907816
• The square root of 81742117539706 is 9041134.7484542005
• The cube root of 81742117539706 is 43399.2237148885

Scales and comparisons

• 81,742,117,539,706 seconds is equal to 2,599,146 years, 25 weeks, 4 days, 9 hours, 1 minute, 46 seconds.
• To count from 1 to 81,742,117,539,706 would take you about six million, four hundred ninety-seven thousand, eight hundred sixty-six 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 81742117539706 cubic inches would be around 3616.6 feet tall.

Recreational maths with 81742117539706

• 81742117539706 backwards is 60793571124718
• The number of decimal digits it has is: 14
• The sum of 81742117539706's digits is 61
• More coming soon!