81736345489968

Names of 81736345489968

• Cardinal: 81736345489968 can be written as Eighty-one trillion, seven hundred thirty-six billion, three hundred forty-five million, four hundred eighty-nine thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 8.1736345489968 × 10¹³

Factors of 81736345489968

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 5494

Divisors of 81736345489968

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 31 36 39 48 52 54 62 72 73 78 93 104 108 117 124 144 146 156 186 208 216 219 234 248 279 292 312 351 372 403 432 438 468 496 558 584 624 657 702 744 806 837 876 936 949 1116 1168 1209 1314 1404 1488 1612 1674 1752 1801 1872 1898 1971 2232 2263 2418 2628 2808 2847 3224 3348 3504 3571 3602 3627 3796 3942 4464 4526 4836 5256 5403 5616 5694 6448 6696 6789 7142 7204 7254 7592 7884 8541 9052 9672 10512 10713 10806 10881 11388 13392 13578 14284 14408 14508 15184 15768 16209 17082 18104 19344 20367 21426 21612 21762 22776 23413 25623 27156 28568 28816 29016 29419 31536 32139 32418 34164 36208 40734 42852 43224 43524 45552 46423 46826 48627 51246 54312 55831 57136 58032 58838 61101 64278 64836 68328 70239 81468 85704 86448 87048 88257 92846 93652 96417 97254 102492 108624 110701 111662 117676 122202 128556 129672 131473 136656 139269 140478 162936 167493 171408 174096 176514 185692 187304 192834 194508 204984 210717 221402 223324 235352 244404 257112 259344 260683 262946 264771 278538 280956 325872 332103 334986 353028 371384 374608 385668 389016 394419 409968 417807 421434 442804 446648 470704 488808 502479 514224 521366 525892 529542 557076 561912 632151 664206 669972 706056 725803 742768 771336 778032 782049 788838 794313 835614 842868 885608 893296 977616 996309 1004958 1042732 1051784 1059084 1114152 1123824 1183257 1253421 1264302 1328412 1339944 1412112 1439113 1451606 1507437 1542672 1564098 1577676 1588626 1671228 1685736 1709149 1771216 1992618 2009916 2085464 2103568 2118168 2177409 2228304 2346147 2366514 2506842 2528604 2656824 2679888 2878226 2903212 2988927 3014874 3128196 3155352 3177252 3342456 3371472 3388879 3418298 3549771 3985236 4019832 4075663 4170928 4236336 4317339 4354818 4692294 4733028 5013684 5057208 5127447 5313648 5756452 5806424 5977854 6029748 6256392 6310704 6354504 6431371 6532227 6684912 6777758 6836596 7038441 7099542 7970472 8039664 8081173 8151326 8634678 8709636 9384588 9466056 10027368 10114416 10166637 10254894 11512904 11612848 11955708 12059496 12226989 12512784 12709008 12862742 12952017 13064454 13555516 13673192 14076882 14199084 15382341 15940944 16162346 16302652 17269356 17419272 18769176 18932112 19294113 19596681 20054736 20333274 20509788 23025808 23911416 24118992 24243519 24453978 25725484 25904034 26128908 27111032 27346384 28153764 28398168 30499911 30764682 32324692 32605304 34538712 34838544 36680967 37538352 38588226 38856051 39193362 40666548 41019576 46147023 47822832 48487038 48907956 51450968 51808068 52257816 52983619 54222064 56307528 56796336 57882339 60999822 61529364 64649384 65210608 69077424 72730557 73361934 77176452 77712102 78386724 81333096 82039152 83607823 91499733 92294046 96974076 97815912 102901936 103616136 104515632 105055249 105967238 110042901 112615056 115764678 121999644 123058728 129298768 145461114 146723868 154352904 155424204 156773448 158950857 162666192 167215646 173647017 182999466 184588092 193948152 195631824 199372501 207232272 210110498 211934476 218191671 220085802 231529356 243999288 246117456 250823469 290922228 293447736 308705808 310848408 313546896 315165747 317901714 334431292 347294034 365998932 369176184 387896304 398745002 420220996 423868952 436383342 440171604 463058712 469490083 476852571 487998576 501646938 581844456 586895472 598117503 621696816 630331494 635803428 668862584 694588068 731997864 738352368 752470407 797490004 840441992 847737904 872766684 880343208 926117424 938980166 945497241 953705142 1003293876 1163688912 1196235006 1260662988 1271606856 1337725168 1389176136 1408470249 1430557713 1463995728 1504940814 1594980008 1680883984 1745533368 1760686416 1794352509 1877960332 1890994482 1907410284 2006587752 2257411221 2392470012 2521325976 2543213712 2591842513 2778352272 2816940498 2836491723 2861115426 3009881628 3189960016 3491066736 3588705018 3755920664 3781988964 3814820568 4013175504 4225410747 4514822442 4784940024 5042651952 5183685026 5383057527 5633880996 5672983446 5722230852 6019763256 6103371079 7177410036 7511841328 7563977928 7629641136 7775527539 8450821494 9029644884 9569880048 10367370052 10766115054 11267761992 11345966892 11444461704 12039526512 12206742158 12676232241 14354820072 14554192573 15127955856 15551055078 16901642988 18059289768 18310113237 20734740104 21532230108 22535523984 22691933784 22888923408 23326582617 24413484316 25352464482 28709640144 29108385146 31102110156 33803285976 36118579536 36620226474 41469480208 43064460216 43662577719 45383867568 46653165234 48826968632 50704928964 54930339711 58216770292 62204220312 67606571952 69979747851 73240452948 86128920432 87325155438 93306330468 97653937264 101409857928 109860679422 116433540584 124408440624 130987733157 139959495702 146480905896 164791019133 174650310876 186612660936 189204503449 202819715856 219721358844 232867081168 261975466314 279918991404 292961811792 329582038266 349300621752 373225321872 378409006898 392963199471 439442717688 523950932628 559837982808 567613510347 659164076532 698601243504 756818013796 785926398942 878885435376 1047901865256 1119675965616 1135227020694 1318328153064 1513636027592 1571852797884 1702840531041 2095803730512 2270454041388 2636656306128 3027272055184 3143705595768 3405681062082 4540908082776 5108521593123 6287411191536 6811362124164 9081816165552 10217043186246 13622724248328 20434086372492 27245448496656 40868172744984 81736345489968
• Sum of all divisors σ(n): 264604761989120
• Sum of proper divisors (its aliquot sum) s(n): 182868416499152
• 81736345489968 is an abundant number, because the sum of its proper divisors (182868416499152) is greater than itself. Its abundance is 101132071009184

Bases of 81736345489968

• Binary: 10010100101011010111001110101101001001000110000₂
• Hexadecimal: 0x4A56B9D69230
• Base-36: SZ15PQGC0

Squares and roots of 81736345489968

• 81736345489968 squared (81736345489968²) is 6680830174055412213988641024
• 81736345489968 cubed (81736345489968³) is 546066643266396220561371600482403745247232
• The square root of 81736345489968 is 9040815.5323492803
• The cube root of 81736345489968 is 43398.2021755161

Scales and comparisons

• 81,736,345,489,968 seconds is equal to 2,598,962 years, 49 weeks, 6 days, 5 hours, 52 minutes, 48 seconds.
• To count from 1 to 81,736,345,489,968 would take you about six million, four hundred ninety-seven thousand, four hundred seven 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 81736345489968 cubic inches would be around 3616.5 feet tall.

Recreational maths with 81736345489968

• 81736345489968 backwards is 86998454363718
• The number of decimal digits it has is: 14
• The sum of 81736345489968's digits is 81
• More coming soon!