81740984940160

Names of 81740984940160

• Cardinal: 81740984940160 can be written as Eighty-one trillion, seven hundred forty billion, nine hundred eighty-four million, nine hundred forty thousand, one hundred sixty.

Scientific notation

• Scientific notation: 8.174098494016 × 10¹³

Factors of 81740984940160

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 8332

Divisors of 81740984940160

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 53 56 61 64 65 70 80 91 104 106 112 122 128 130 140 160 182 208 212 224 244 260 265 280 305 320 364 371 416 424 427 448 455 488 520 530 560 610 640 689 728 742 793 832 848 854 896 910 976 1040 1060 1120 1220 1378 1456 1484 1586 1664 1696 1708 1820 1855 1952 2080 2120 2135 2240 2440 2756 2809 2912 2968 3172 3233 3392 3416 3445 3640 3710 3904 3965 4160 4240 4270 4480 4823 4880 5512 5551 5618 5824 5936 6344 6466 6784 6832 6890 7280 7420 7808 7930 8191 8320 8480 8540 9646 9760 11024 11102 11236 11648 11872 12688 12932 13664 13780 14045 14560 14840 15860 16165 16382 16960 17080 19292 19520 19663 22048 22204 22472 22631 23744 24115 25376 25864 27328 27560 27755 28090 29120 29680 31720 32330 32764 33920 34160 36517 38584 39040 39326 40955 42029 44096 44408 44944 45262 47488 48230 50752 51728 54656 55120 55510 56180 57337 58240 59360 63440 64660 65528 68320 73034 77168 78652 81910 84058 88192 88816 89888 90524 96460 98315 101504 103456 106483 110240 111020 112360 113155 114674 118720 126880 129320 131056 136640 146068 154336 157304 163820 168116 171349 177632 179776 181048 182585 192920 196630 206912 210145 212966 220480 222040 224720 226310 229348 237440 253760 255619 258640 262112 273280 286685 292136 294203 308672 314608 327640 336232 342698 355264 359552 362096 365170 385840 393260 413824 420290 425932 434123 440960 444080 449440 452620 458696 499651 507520 511238 517280 524224 532415 573370 584272 588406 617344 629216 655280 672464 685396 710528 724192 730340 745381 771680 786520 840580 851864 856745 868246 888160 898880 905240 917392 999302 1022476 1034560 1048448 1064830 1146740 1168544 1176812 1199443 1258432 1278095 1310560 1344928 1370792 1448384 1460680 1471015 1490762 1543360 1573040 1681160 1703728 1713490 1736492 1776320 1797760 1810480 1834784 1998604 2044952 2069120 2129660 2170615 2227537 2293480 2337088 2353624 2398886 2498255 2516864 2556190 2621120 2689856 2741584 2896768 2921360 2942030 2981524 3038861 3086720 3146080 3362320 3407456 3426980 3472984 3497557 3552640 3620960 3669568 3726905 3997208 4089904 4259320 4341230 4455074 4586960 4674176 4707248 4797772 4996510 5112380 5242240 5379712 5483168 5643599 5842720 5884060 5963048 5997215 6077722 6292160 6495463 6724640 6814912 6853960 6945968 6995114 7241920 7339136 7453810 7994416 8179808 8518640 8682460 8910148 9173920 9414496 9595544 9993020 10224760 10966336 11137685 11287198 11685440 11768120 11926096 11994430 12155444 12584320 12990926 13449280 13629824 13707920 13891936 13990228 14483840 14907620 15194305 15592759 15988832 16359616 17037280 17364920 17487785 17820296 18347840 18828992 19191088 19986040 20449520 21932672 22275370 22574396 23008519 23370880 23536240 23852192 23988860 24310888 25981852 26481503 26898560 27415840 27783872 27980456 28217995 29815240 30388610 31185518 31977664 32477315 32719232 34074560 34729840 34975570 35640592 36695680 37657984 38382176 39505193 39972080 40899040 44550740 45148792 45468241 46017038 47072480 47704384 47977720 48621776 51963704 52963006 54831680 55567744 55960912 56435990 59630480 60777220 62371036 63955328 64954630 68149120 69459680 69951140 71281184 76764352 77963795 79010386 79944160 81798080 89101480 90297584 90936482 92034076 94144960 95408768 95955440 97243552 103927408 105926012 109663360 111921824 112871980 115042595 119260960 121554440 124742072 129909260 132407515 138919360 139902280 142562368 153528704 155927590 158020772 159888320 161059633 163596160 178202960 180595168 181872964 184068152 185370521 188289920 191910880 194487104 197525965 207854816 211852024 223843648 225743960 227341205 230085190 238521920 243108880 249484144 259818520 264815030 277838720 279804560 285124736 299110747 311855180 316041544 319776640 322119266 344259539 356405920 361190336 363745928 368136304 370741042 383821760 388974208 395051930 415709632 423704048 447687296 451487920 454682410 460170380 477043840 486217760 498968288 519637040 529630060 559609120 598221494 623710360 632083088 644238532 688519078 712811840 722380672 727491856 736272608 741482084 767643520 790103860 805298165 831419264 847408096 902975840 909364820 920340760 926852605 972435520 997936576 1039274080 1059260120 1119218240 1196442988 1247420720 1264166176 1288477064 1377038156 1403519659 1425623680 1454983712 1472545216 1482964168 1495553735 1580207720 1610596330 1694816192 1721297695 1805951680 1818729640 1840681520 1853705210 1944871040 1995873152 2078548160 2093775229 2118520240 2238436480 2392885976 2409816773 2494841440 2528332352 2576954128 2754076312 2807039318 2909967424 2945090432 2965928336 2991107470 3160415440 3221192660 3389632384 3442595390 3611903360 3637459280 3681363040 3707410420 4157096320 4187550458 4237040480 4785771952 4819633546 4989682880 5056664704 5153908256 5508152624 5614078636 5819934848 5931856672 5982214940 6320830880 6442385320 6885190780 7017598295 7274918560 7362726080 7414820840 8375100916 8474080960 9571543904 9639267092 9824637613 9979365760 10307816512 10468876145 11016305248 11228157272 11863713344 11964429880 12049083865 12641661760 12884770640 13770381560 14035196590 14549837120 14725452160 14829641680 16750201832 16948161920 18245755567 19143087808 19278534184 19649275226 20615633024 20937752290 22032610496 22456314544 23727426688 23928859760 24098167730 25283323520 25769541280 27540763120 28070393180 29099674240 29659283360 33500403664 36491511134 38286175616 38557068368 39298550452 41875504580 44065220992 44912629088 47857719520 48196335460 49123188065 51539082560 55081526240 56140786360 59318566720 67000807328 72983022268 77114136736 78597100904 83751009160 89825258176 91228777835 95715439040 96392670920 98246376130 103078165120 110163052480 112281572720 118637133440 127720288969 134001614656 145966044536 154228273472 157194201808 167502018320 179650516352 182457555670 191430878080 192785341840 196492752260 220326104960 224563145440 255440577938 268003229312 291932089072 308456546944 314388403616 335004036640 364915111340 385570683680 392985504520 449126290880 510881155876 583864178144 628776807232 638601444845 670008073280 729830222680 771141367360 785971009040 898252581760 1021762311752 1167728356288 1257553614464 1277202889690 1340016146560 1459660445360 1542282734720 1571942018080 2043524623504 2335456712576 2554405779380 2919320890720 3143884036160 4087049247008 5108811558760 5838641781440 6287768072320 8174098494016 10217623117520 11677283562880 16348196988032 20435246235040 40870492470080 81740984940160
• Sum of all divisors σ(n): 249179571486720
• Sum of proper divisors (its aliquot sum) s(n): 167438586546560
• 81740984940160 is an abundant number, because the sum of its proper divisors (167438586546560) is greater than itself. Its abundance is 85697601606400

Bases of 81740984940160

• Binary: 10010100101011111001110010111101111011010000000₂
• Hexadecimal: 0x4A57CE5EF680
• Base-36: SZ3AFXZ0G

Squares and roots of 81740984940160

• 81740984940160 squared (81740984940160²) is 6681588618987463918780825600
• 81740984940160 cubed (81740984940160³) is 546159634680998740412894842757371396096000
• The square root of 81740984940160 is 9041072.1123194233
• The cube root of 81740984940160 is 43399.0232708187

Scales and comparisons

• 81,740,984,940,160 seconds is equal to 2,599,110 years, 24 weeks, 6 days, 14 hours, 2 minutes, 40 seconds.
• To count from 1 to 81,740,984,940,160 would take you about six million, four hundred ninety-seven thousand, seven hundred seventy-six 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 81740984940160 cubic inches would be around 3616.6 feet tall.

Recreational maths with 81740984940160

• 81740984940160 backwards is 06104948904718
• 81740984940160 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81740984940160's digits is 61
• More coming soon!