81426473909898

Names of 81426473909898

• Cardinal: 81426473909898 can be written as Eighty-one trillion, four hundred twenty-six billion, four hundred seventy-three million, nine hundred nine thousand, eight hundred ninety-eight.

Scientific notation

• Scientific notation: 8.1426473909898 × 10¹³

Factors of 81426473909898

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1031711

Divisors of 81426473909898

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 13 26 39 41 78 82 123 246 533 1066 1599 3198 25301 50602 75903 151806 328913 657826 986739 1006351 1037341 1973478 2012702 2074682 3019053 3112023 6038106 6224046 13082563 13485433 26165126 26970866 39247689 40456299 41260391 78495378 80912598 82520782 123781173 247562346 536385083 1072770166 1609155249 3218310498 25461686651 50923373302 76385059953 152770119906 331001926463 662003852926 993005779389 1043929152691 1986011558778 2087858305382 3131787458073 6263574916146 13571078984983 27142157969966 40713236954949 81426473909898
• Sum of all divisors σ(n): 179664940353024
• Sum of proper divisors (its aliquot sum) s(n): 98238466443126
• 81426473909898 is an abundant number, because the sum of its proper divisors (98238466443126) is greater than itself. Its abundance is 16811992533228

Bases of 81426473909898

• Binary: 10010100000111010010100000011010111111010001010₂
• Hexadecimal: 0x4A0E940D7E8A
• Base-36: SV2T072X6

Squares and roots of 81426473909898

• 81426473909898 squared (81426473909898²) is 6630270653399299687422370404
• 81426473909898 cubed (81426473909898³) is 539879560374580441203522070283545077858792
• The square root of 81426473909898 is 9023661.8902692713
• The cube root of 81426473909898 is 43343.2902535061

Scales and comparisons

• 81,426,473,909,898 seconds is equal to 2,589,110 years, 14 hours, 58 minutes, 18 seconds.
• To count from 1 to 81,426,473,909,898 would take you about six million, four hundred seventy-two thousand, seven hundred seventy-five 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 81426473909898 cubic inches would be around 3611.9 feet tall.

Recreational maths with 81426473909898

• 81426473909898 backwards is 89890937462418
• 81426473909898 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81426473909898's digits is 78
• More coming soon!