81401336221712

Names of 81401336221712

• Cardinal: 81401336221712 can be written as Eighty-one trillion, four hundred one billion, three hundred thirty-six million, two hundred twenty-one thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 8.1401336221712 × 10¹³

Factors of 81401336221712

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 37141110

Divisors of 81401336221712

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 13 16 26 41 52 82 104 164 208 257 328 514 533 656 1028 1066 2056 2132 3341 4112 4264 6682 8528 10537 13364 21074 26728 42148 53456 84296 136981 168592 273962 547924 1095848 2191696 37140797 74281594 148563188 297126376 482830361 594252752 965660722 1522772677 1931321444 3045545354 3862642888 6091090708 7725285776 9545184829 12182181416 19090369658 19796044801 24364362832 38180739316 39592089602 76361478632 79184179204 124087402777 152722957264 158368358408 248174805554 316736716816 391352577989 496349611108 782705155978 992699222216 1565410311956 1985398444432 3130820623912 5087583513857 6261641247824 10175167027714 20350334055428 40700668110856 81401336221712
• Sum of all divisors σ(n): 174666636213552
• Sum of proper divisors (its aliquot sum) s(n): 93265299991840
• 81401336221712 is an abundant number, because the sum of its proper divisors (93265299991840) is greater than itself. Its abundance is 11863963770128

Bases of 81401336221712

• Binary: 10010100000100010111001101110101101000000010000₂
• Hexadecimal: 0x4A08B9BAD010
• Base-36: SUR99V6KW

Squares and roots of 81401336221712

• 81401336221712 squared (81401336221712²) is 6626177538680202063620210944
• 81401336221712 cubed (81401336221712³) is 539379705690863199184507127372785392816128
• The square root of 81401336221712 is 9022268.9065285569
• The cube root of 81401336221712 is 43338.8295328791

Scales and comparisons

• 81,401,336,221,712 seconds is equal to 2,588,310 years, 36 weeks, 3 days, 3 hours, 48 minutes, 32 seconds.
• To count from 1 to 81,401,336,221,712 would take you about six million, four hundred seventy thousand, seven hundred seventy-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 81401336221712 cubic inches would be around 3611.6 feet tall.

Recreational maths with 81401336221712

• 81401336221712 backwards is 21712263310418
• 81401336221712 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81401336221712's digits is 41
• More coming soon!