81831909712329

Names of 81831909712329

• Cardinal: 81831909712329 can be written as Eighty-one trillion, eight hundred thirty-one billion, nine hundred nine million, seven hundred twelve thousand, three hundred twenty-nine.

Scientific notation

• Scientific notation: 8.1831909712329 × 10¹³

Factors of 81831909712329

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3022

Divisors of 81831909712329

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 27 49 63 147 189 283 441 849 1323 1981 2547 2729 5943 7641 8187 13867 17829 19103 24561 41601 53487 57309 73683 80089 124803 133721 171927 240267 374409 401163 515781 560623 720801 772307 1203489 1681869 2162403 2316921 3610467 3924361 5045607 5406149 6950763 11773083 15136821 16218447 20852289 22665187 35319249 37843043 48655341 67995561 105957747 113529129 145966023 158656309 203986683 218562881 340587387 475968927 611960049 655688643 1021762161 1110594163 1427906781 1529940167 1967065929 3331782489 4283720343 4589820501 5901197787 9995347467 10709581169 13769461503 29986042401 32128743507 41308384509 61853295323 96386230521 185559885969 289158691563 432973067261 556679657907 1298919201783 1670038973721 3030811470827 3896757605349 9092434412481 11690272816047 27277303237443 81831909712329
• Sum of all divisors σ(n): 141577463664000
• Sum of proper divisors (its aliquot sum) s(n): 59745553951671
• 81831909712329 is a deficient number, because the sum of its proper divisors (59745553951671) is less than itself. Its deficiency is 22086355760658

Bases of 81831909712329

• Binary: 10010100110110011111001111010001110000111001001₂
• Hexadecimal: 0x4A6CF9E8E1C9
• Base-36: T09267E89

Squares and roots of 81831909712329

• 81831909712329 squared (81831909712329²) is 6696461447166765319534604241
• 81831909712329 cubed (81831909712329³) is 547984228536642733651366429899291173387289
• The square root of 81831909712329 is 9046099.1434059023
• The cube root of 81831909712329 is 43415.1089756763

Scales and comparisons

• 81,831,909,712,329 seconds is equal to 2,602,001 years, 31 weeks, 3 days, 15 hours, 12 minutes, 9 seconds.
• To count from 1 to 81,831,909,712,329 would take you about six million, five hundred five thousand and four 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 81831909712329 cubic inches would be around 3617.9 feet tall.

Recreational maths with 81831909712329

• 81831909712329 backwards is 92321790913818
• 81831909712329 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81831909712329's digits is 63
• More coming soon!