81364667437980

Names of 81364667437980

• Cardinal: 81364667437980 can be written as Eighty-one trillion, three hundred sixty-four billion, six hundred sixty-seven million, four hundred thirty-seven thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 8.136466743798 × 10¹³

Factors of 81364667437980

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4604

Divisors of 81364667437980

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 61 90 122 127 180 183 229 244 254 305 366 381 458 508 549 610 635 687 732 762 915 916 1098 1143 1145 1220 1270 1374 1524 1830 1905 2061 2196 2286 2290 2540 2745 2748 3435 3660 3721 3810 4122 4177 4572 4580 5490 5715 6870 7442 7620 7747 8244 8354 10305 10980 11163 11430 12531 13740 13969 14884 15494 16708 18605 20610 20885 22326 22860 23241 25062 27938 29083 30988 33489 37210 37593 38735 41220 41770 41907 44652 46482 50124 55815 55876 58166 62655 66978 69723 69845 74420 75186 77470 83540 83814 87249 92964 111630 116205 116332 125310 125721 133956 139446 139690 145415 150372 154940 167445 167628 174498 187965 209535 223260 232410 250620 251442 254797 261747 278892 279380 290830 334890 348615 348996 375930 419070 436245 464820 472567 502884 509594 523494 530479 581660 628605 669780 697230 751860 764391 838140 852109 872490 945134 956533 1019188 1046988 1060958 1257210 1273985 1308735 1394460 1417701 1528782 1591437 1704218 1744980 1774063 1890268 1913066 2121916 2293173 2362835 2514420 2547970 2556327 2617470 2652395 2835402 2869599 3057564 3182874 3408436 3548126 3821955 3826132 4253103 4260545 4586346 4725670 4774311 4782665 5095940 5112654 5234940 5304790 5322189 5670804 5739198 6365748 7088505 7096252 7643910 7668981 7957185 8506206 8521090 8608797 8870315 9172692 9451340 9548622 9565330 10225308 10609580 10644378 11465865 11478396 12781635 14177010 14347995 15287820 15337962 15542617 15914370 15966567 17012412 17042180 17217594 17740630 19097244 19130660 21265515 21288756 22931730 23871555 25563270 26610945 28354020 28695990 30675924 31085234 31828740 31933134 32359219 34435188 35481260 38344905 42531030 43043985 45863460 46627851 47743110 51126540 53221890 57391980 58348513 62170468 63866268 64718438 76689810 77713085 79832835 85062060 86087970 93255702 95486220 97077657 106443780 108217843 116697026 121479691 129436876 139883553 153379620 155426170 159665670 161796095 172175940 175045539 186511404 194155314 216435686 233139255 233394052 242959382 279767106 291232971 291742565 310852340 319331340 323592190 324653529 350091078 364439073 388310628 432871372 466278510 485388285 485918764 525136617 541089215 559534212 582465942 583485130 607398455 647184380 649307058 699417765 700182156 728878146 875227695 932557020 970776570 973960587 1050273234 1082178430 1093317219 1164931884 1166970260 1214796910 1298614116 1398835530 1456164855 1457756292 1623267645 1750455390 1822195365 1941553140 1947921174 1973912359 2100546468 2164356860 2186634438 2429593820 2625683085 2797671060 2912329710 3246535290 3500910780 3559259293 3644390730 3895842348 3947824718 4373268876 4869802935 5251366170 5466586095 5824659420 5921737077 6493070580 7118518586 7288781460 7410261151 7895649436 9739605870 9869561795 10502732340 10677777879 10933172190 11843474154 14237037172 14820522302 17765211231 17796296465 19479211740 19739123590 21355555758 21866344380 22230783453 23686948308 29608685385 29641044604 32033333637 35530422462 35592592930 37051305755 39478247180 42711111516 44461566906 53388889395 59217370770 64066667274 66692350359 71060844924 71185185860 74102611510 88826056155 88923133812 106777778790 111153917265 118434741540 128133334548 133384700718 148205223020 160166668185 177652112310 213555557580 222307834530 266769401436 320333336370 333461751795 355304224620 444615669060 452025930211 640666672740 666923503590 904051860422 1333847007180 1356077790633 1808103720844 2260129651055 2712155581266 4068233371899 4520259302110 5424311162532 6780388953165 8136466743798 9040518604220 13560777906330 16272933487596 20341166859495 27121555812660 40682333718990 81364667437980
• Sum of all divisors σ(n): 254059374965760
• Sum of proper divisors (its aliquot sum) s(n): 172694707527780
• 81364667437980 is an abundant number, because the sum of its proper divisors (172694707527780) is greater than itself. Its abundance is 91330040089800

Bases of 81364667437980

• Binary: 10010100000000000110000000110011001001110011100₂
• Hexadecimal: 0x4A003019939C
• Base-36: SUAEU7VZ0

Squares and roots of 81364667437980

• 81364667437980 squared (81364667437980²) is 6620209107293082897146480400
• 81364667437980 cubed (81364667437980³) is 538651112384788146141943075260242285592000
• The square root of 81364667437980 is 9020236.5511099541
• The cube root of 81364667437980 is 43332.3209548195

Scales and comparisons

• 81,364,667,437,980 seconds is equal to 2,587,144 years, 38 weeks, 5 days, 22 hours, 33 minutes.
• To count from 1 to 81,364,667,437,980 would take you about six million, four hundred sixty-seven thousand, eight hundred sixty-one 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 81364667437980 cubic inches would be around 3611 feet tall.

Recreational maths with 81364667437980

• 81364667437980 backwards is 08973476646318
• The number of decimal digits it has is: 14
• The sum of 81364667437980's digits is 72
• More coming soon!