81337538127375

Names of 81337538127375

• Cardinal: 81337538127375 can be written as Eighty-one trillion, three hundred thirty-seven billion, five hundred thirty-eight million, one hundred twenty-seven thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 8.1337538127375 × 10¹³

Factors of 81337538127375

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 51213

Divisors of 81337538127375

• Number of divisors d(n): 224
• Complete list of divisors:
  1 3 5 9 15 25 27 43 45 75 81 125 129 135 215 225 243 375 387 405 409 645 675 729 1075 1125 1161 1215 1227 1935 2025 2045 3225 3375 3483 3645 3681 5375 5805 6075 6135 9675 10125 10225 10449 11043 16125 17415 17587 18225 18405 29025 30375 30675 31347 33129 48375 50753 51125 52245 52761 55215 87075 87935 91125 92025 99387 145125 152259 153375 156735 158283 165645 253765 261225 263805 276075 298161 435375 439675 456777 460125 474849 496935 761295 783675 791415 828225 1268825 1306125 1319025 1370331 1380375 1424547 1490805 2182379 2198375 2283885 2374245 2484675 3806475 3918375 3957075 4110993 4141125 4273641 6344125 6547137 6595125 6851655 7122735 7454025 10911895 11419425 11871225 12332979 12423375 12820923 19032375 19641411 19785375 20554965 20757977 21368205 32735685 34258275 35613675 36998937 37270125 54559475 57097125 58924233 59356125 61664895 62273931 64104615 98207055 102774825 103789885 106841025 163678425 171291375 176772699 178068375 184994685 186821793 272797375 294621165 308324475 311369655 320523075 491035275 513874125 518949425 530318097 534205125 560465379 818392125 883863495 892593011 924973425 934108965 1473105825 1541622375 1556848275 1590954291 1602615375 1681396137 2455176375 2594747125 2651590485 2677779033 2802326895 4419317475 4462965055 4624867125 4670544825 5044188411 7365529125 7784241375 7954771455 8033337099 8406980685 13257952425 13388895165 14011634475 15132565233 22096587375 22314825275 23352724125 24100011297 25220942055 39773857275 40166685495 42034903425 66289762125 66944475825 70058172375 72300033891 75662826165 111574126375 120500056485 126104710275 198869286375 200833427475 210174517125 216900101673 334722379125 361500169455 378314130825 602500282425 630523551375 650700305019 1004167137375 1084500508365 1807500847275 1891570654125 3012501412125 3253501525095 5422502541825 9037504236375 16267507625475 27112512709125 81337538127375
• Sum of all divisors σ(n): 156117493097280
• Sum of proper divisors (its aliquot sum) s(n): 74779954969905
• 81337538127375 is a deficient number, because the sum of its proper divisors (74779954969905) is less than itself. Its deficiency is 6557583157470

Bases of 81337538127375

• Binary: 10010011111100111011111000100010010011000001111₂
• Hexadecimal: 0x49F9DF11260F
• Base-36: STXY64LXR

Squares and roots of 81337538127375

• 81337538127375 squared (81337538127375²) is 6615795108622181821724390625
• 81337538127375 cubed (81337538127375³) is 538112486890457743528167257529925505859375
• The square root of 81337538127375 is 9018732.6231225527
• The cube root of 81337538127375 is 43327.5043404645

Scales and comparisons

• 81,337,538,127,375 seconds is equal to 2,586,282 years, 6 weeks, 1 day, 6 hours, 56 minutes, 15 seconds.
• To count from 1 to 81,337,538,127,375 would take you about six million, four hundred sixty-five thousand, seven hundred 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 81337538127375 cubic inches would be around 3610.6 feet tall.

Recreational maths with 81337538127375

• 81337538127375 backwards is 57372183573318
• The number of decimal digits it has is: 14
• The sum of 81337538127375's digits is 63
• More coming soon!