81450043438079376

Names of 81450043438079376

• Cardinal: 81450043438079376 can be written as Eighty-one quadrillion, four hundred fifty trillion, forty-three billion, four hundred thirty-eight million, seventy-nine thousand, three hundred seventy-six.

Scientific notation

• Scientific notation: 8.1450043438079376 × 10¹⁶

Factors of 81450043438079376

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 44653454284

Divisors of 81450043438079376

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 53 72 106 144 159 212 239 318 424 477 478 636 717 848 954 956 1272 1434 1908 1912 2151 2544 2868 3816 3824 4302 5736 7632 8604 11472 12667 17208 25334 34416 38001 50668 76002 101336 114003 152004 202672 228006 304008 456012 608016 912024 1824048 44653453987 89306907974 133960361961 178613815948 267920723922 357227631896 401881085883 535841447844 714455263792 803762171766 1071682895688 1607524343532 2143365791376 2366633061311 3215048687064 4733266122622 6430097374128 7099899183933 9466532245244 10672175502893 14199798367866 18933064490488 21299697551799 21344351005786 28399596735732 32016526508679 37866128980976 42599395103598 42688702011572 56799193471464 64033053017358 85198790207196 85377404023144 96049579526037 113598386942928 128066106034716 170397580414392 170754808046288 192099159052074 256132212069432 340795160828784 384198318104148 512264424138864 565625301653329 768396636208296 1131250603306658 1536793272416592 1696875904959987 2262501206613316 3393751809919974 4525002413226632 5090627714879961 6787503619839948 9050004826453264 10181255429759922 13575007239679896 20362510859519844 27150014479359792 40725021719039688 81450043438079376
• Sum of all divisors σ(n): 233219631764845440
• Sum of proper divisors (its aliquot sum) s(n): 151769588326766064
• 81450043438079376 is an abundant number, because the sum of its proper divisors (151769588326766064) is greater than itself. Its abundance is 70319544888686688

Bases of 81450043438079376

• Binary: 100100001010111100110001000001010000100010001110110010000₂
• Hexadecimal: 0x1215E620A111D90
• Base-36: M9ZMPED8AS0

Squares and roots of 81450043438079376

• 81450043438079376 squared (81450043438079376²) is 6634109576065017217139875676549376
• 81450043438079376 cubed (81450043438079376³) is 540348513143474006529970488783494007923496471269376
• The square root of 81450043438079376 is 285394539.9584220779
• The cube root of 81450043438079376 is 433474.7186791119

Scales and comparisons

• 81,450,043,438,079,376 seconds is equal to 2,589,859,439 years, 41 weeks, 5 days, 21 hours, 9 minutes, 36 seconds.
• To count from 1 to 81,450,043,438,079,376 would take you about seven billion, seven hundred sixty-nine million, five hundred seventy-eight thousand, three hundred nineteen 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 81450043438079376 cubic inches would be around 36122.9 feet tall.

Recreational maths with 81450043438079376

• 81450043438079376 backwards is 67397083434005418
• 81450043438079376 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 81450043438079376's digits is 72
• More coming soon!