81432609131744

Names of 81432609131744

• Cardinal: 81432609131744 can be written as Eighty-one trillion, four hundred thirty-two billion, six hundred nine million, one hundred thirty-one thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 8.1432609131744 × 10¹³

Factors of 81432609131744

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 338

Divisors of 81432609131744

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 103 104 107 113 169 206 208 214 226 338 412 416 428 452 676 824 856 904 1339 1352 1391 1469 1648 1712 1808 2678 2704 2782 2938 3296 3424 3616 5356 5408 5564 5876 10712 11021 11128 11449 11639 11752 12091 12769 17407 18083 19097 21424 22042 22256 22898 23278 23504 24182 25538 34814 36166 38194 42848 44084 44512 45796 46556 47008 48364 51076 69628 72332 76388 88168 91592 93112 96728 102152 139256 143273 144664 148837 151307 152776 157183 165997 176336 183184 186224 193456 204304 278512 286546 289328 297674 302614 305552 314366 331994 352672 366368 372448 386912 408608 557024 573092 578656 595348 605228 611104 628732 663988 1146184 1179247 1190696 1210456 1245373 1257464 1293737 1315207 1327976 1366283 1862549 1934881 1966991 2043379 2157961 2292368 2358494 2381392 2420912 2490746 2514928 2587474 2630414 2655952 2732566 3725098 3869762 3933982 4086758 4315922 4584736 4716988 4762784 4841824 4981492 5029856 5174948 5260828 5311904 5465132 7450196 7739524 7867964 8173516 8631844 9433976 9962984 10349896 10521656 10930264 14900392 15330211 15479048 15735928 16189849 16347032 16818581 17097691 17263688 17761679 18867952 19925968 20699792 21043312 21860528 29800784 30660422 30958096 31471856 32379698 32694064 33637162 34195382 34527376 35523358 37735904 39851936 41399584 42086624 43721056 59601568 61320844 61916192 62943712 64759396 65388128 67274324 68390764 69054752 71046716 122641688 129518792 133254911 134548648 136781528 140727149 142093432 146192281 199292743 210468037 218641553 222269983 230901827 245283376 259037584 266509822 269097296 273563056 281454298 284186864 292384562 398585486 420936074 437283106 444539966 461803654 490566752 518075168 533019644 538194592 547126112 562908596 568373728 584769124 797170972 841872148 874566212 889079932 923607308 1066039288 1125817192 1169538248 1594341944 1683744296 1732313843 1749132424 1778159864 1829452937 1847214616 1900499653 2132078576 2251634384 2339076496 3188683888 3367488592 3464627686 3498264848 3556319728 3658905874 3694429232 3800999306 4264157152 4503268768 4678152992 6377367776 6734977184 6929255372 6996529696 7112639456 7317811748 7388858464 7601998612 13858510744 14635623496 15057804943 15203997224 22520079959 23782888181 24706495489 27717021488 29271246992 30115609886 30407994448 45040159918 47565776362 49412990978 55434042976 58542493984 60231219772 60815988896 90080319836 95131552724 98825981956 120462439544 180160639672 190263105448 195751464259 197651963912 240924879088 360321279344 380526210896 391502928518 395303927824 481849758176 720642558688 761052421792 783005857036 790607855648 1566011714072 2544769035367 3132023428144 5089538070734 6264046856288 10179076141468 20358152282936 40716304565872 81432609131744
• Sum of all divisors σ(n): 178520090590296
• Sum of proper divisors (its aliquot sum) s(n): 97087481458552
• 81432609131744 is an abundant number, because the sum of its proper divisors (97087481458552) is greater than itself. Its abundance is 15654872326808

Bases of 81432609131744

• Binary: 10010100001000000000001101111011000110011100000₂
• Hexadecimal: 0x4A1001BD8CE0
• Base-36: SV5MGY6E8

Squares and roots of 81432609131744

• 81432609131744 squared (81432609131744²) is 6631269830003396297548481536
• 81432609131744 cubed (81432609131744³) is 540001604113793051854280597289034575478784
• The square root of 81432609131744 is 9024001.8357569053
• The cube root of 81432609131744 is 43344.3788184817

Scales and comparisons

• 81,432,609,131,744 seconds is equal to 2,589,305 years, 4 weeks, 2 days, 3 hours, 15 minutes, 44 seconds.
• To count from 1 to 81,432,609,131,744 would take you about six million, four hundred seventy-three thousand, two hundred sixty-two 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 81432609131744 cubic inches would be around 3612 feet tall.

Recreational maths with 81432609131744

• 81432609131744 backwards is 44713190623418
• The number of decimal digits it has is: 14
• The sum of 81432609131744's digits is 53
• More coming soon!