81002741040

Names of 81002741040

• Cardinal: 81002741040 can be written as Eighty-one billion, two million, seven hundred forty-one thousand and forty.

Scientific notation

• Scientific notation: 8.100274104 × 10¹⁰

Factors of 81002741040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 288

Divisors of 81002741040

• Number of divisors d(n): 1200
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 19 20 24 26 27 30 34 36 38 39 40 45 48 51 52 54 57 60 65 68 72 76 78 80 81 85 90 95 102 104 108 114 117 120 130 135 136 144 152 153 156 162 169 170 171 180 190 195 204 208 216 221 228 229 234 240 247 255 260 270 272 285 304 306 312 323 324 338 340 342 351 360 380 390 405 408 432 442 456 458 459 468 494 507 510 513 520 540 570 585 612 624 646 648 663 676 680 684 687 702 720 741 760 765 780 810 816 845 855 884 912 916 918 936 969 988 1014 1020 1026 1040 1053 1080 1105 1140 1145 1170 1224 1235 1292 1296 1326 1352 1360 1368 1374 1377 1404 1482 1520 1521 1530 1539 1560 1615 1620 1690 1710 1755 1768 1832 1836 1872 1938 1976 1989 2028 2040 2052 2061 2106 2160 2210 2223 2280 2290 2295 2340 2448 2470 2535 2565 2584 2652 2704 2736 2748 2754 2808 2873 2907 2964 2977 3042 3060 3078 3120 3211 3230 3240 3315 3380 3420 3435 3510 3536 3664 3672 3705 3876 3893 3952 3978 4056 4080 4104 4122 4199 4212 4351 4420 4446 4560 4563 4580 4590 4680 4845 4940 5070 5130 5168 5265 5304 5496 5508 5616 5746 5814 5928 5954 5967 6084 6120 6156 6183 6422 6460 6480 6630 6669 6760 6840 6870 6885 7020 7344 7410 7605 7695 7752 7786 7956 8112 8208 8244 8398 8424 8619 8702 8721 8840 8892 8931 9126 9160 9180 9360 9633 9690 9880 9945 10140 10260 10305 10530 10608 10992 11016 11115 11492 11628 11679 11856 11908 11934 12168 12240 12312 12366 12597 12844 12920 13053 13260 13338 13520 13680 13689 13740 13770 14040 14365 14535 14820 14885 15210 15390 15504 15572 15912 16055 16488 16796 16848 17238 17404 17442 17680 17784 17862 17901 18252 18320 18360 18549 19266 19380 19465 19760 19890 20007 20280 20520 20610 20995 21060 21755 22032 22230 22815 22984 23256 23358 23816 23868 24336 24624 24732 25194 25688 25840 25857 26106 26163 26520 26676 26793 27378 27480 27540 28080 28730 28899 29070 29640 29770 29835 30420 30780 30915 31144 31824 32110 32976 33345 33592 34476 34808 34884 35037 35568 35724 35802 36504 36720 37098 37791 38532 38701 38760 38930 39159 39780 40014 40560 41040 41220 41990 42120 43095 43510 43605 44460 44655 45630 45968 46512 46716 47632 47736 48165 49464 50388 50609 51376 51714 52212 52326 53040 53352 53586 54587 54756 54960 55080 56563 57460 57798 58140 58395 59280 59540 59670 60840 61560 61830 62288 62985 64220 65265 66690 67184 68445 68952 69616 69768 70074 71448 71604 73008 73967 74196 75582 77064 77402 77520 77571 77860 78318 79560 80028 80379 82440 83980 84240 86190 86697 87020 87210 88920 89310 89505 91260 92745 93432 95472 96330 98928 100035 100776 101218 103428 104424 104652 105111 106704 107172 109174 109512 110160 113126 113373 114920 115596 116103 116280 116790 117477 119080 119340 121680 123120 123660 125970 128440 129285 130530 130815 133380 133965 136890 137904 139536 140148 142896 143208 144495 147934 148392 151164 151827 154128 154804 155142 155720 156636 159120 160056 160758 163761 164880 167960 169689 172380 173394 174040 174420 175185 177840 178620 179010 182520 185490 186864 188955 192660 193505 195795 200070 201552 202436 206856 208848 209304 210222 214344 218348 219024 221901 226252 226746 229840 231192 232206 232560 232713 233580 234954 238160 238680 241137 247320 251940 253045 256880 258570 260091 261060 261630 266760 267930 272935 273780 280296 282815 286416 288990 295868 296784 302328 303654 309608 310284 311440 313272 315333 320112 321516 327522 335920 339378 340119 344760 346788 348080 348309 348840 350370 352431 357240 358020 365040 369835 370980 377910 385320 387010 387855 391590 400140 401895 404872 413712 418608 420444 428688 433485 436696 443802 452504 453492 455481 462384 464412 465426 467160 469908 477360 482274 491283 494640 503880 506090 509067 517140 520182 522120 523260 525555 533520 535860 545870 547560 560592 565630 566865 577980 580515 587385 591736 604656 607308 619216 620568 626544 630666 643032 655044 657917 665703 678756 680238 689520 693576 696618 697680 700740 704862 714480 716040 735319 739670 741960 755820 759135 770640 774020 775710 783180 800280 803790 809744 818805 840888 848445 866970 873392 887604 905008 906984 910962 928824 930852 934320 939816 961571 964548 982566 1007760 1012180 1018134 1034280 1040364 1044240 1044927 1046520 1051110 1071720 1091740 1095120 1109505 1131260 1133730 1155960 1161030 1163565 1174770 1183472 1205685 1214616 1241136 1261332 1286064 1300455 1310088 1315834 1331406 1357512 1360476 1366443 1387152 1393236 1401480 1409724 1432080 1470638 1473849 1479340 1483920 1511640 1518270 1527201 1548040 1551420 1566360 1576665 1600560 1607580 1637610 1681776 1696890 1700595 1733940 1741545 1762155 1775208 1813968 1821924 1857648 1861704 1879632 1923142 1929096 1965132 1973751 1997109 2024360 2036268 2068560 2080728 2089854 2093040 2102220 2143440 2183480 2205957 2219010 2262520 2267460 2277405 2311920 2322060 2327130 2349540 2411370 2429232 2456415 2522664 2545335 2600910 2620176 2631668 2662812 2715024 2720952 2732886 2786472 2802960 2819448 2884713 2941276 2947698 2958680 3023280 3036540 3054402 3096080 3102840 3132720 3134781 3153330 3215160 3275220 3289585 3328515 3393780 3401190 3467880 3483090 3524310 3550416 3643848 3676595 3723408 3846284 3858192 3930264 3947502 3994218 4048720 4072536 4099329 4161456 4179708 4204440 4366960 4411914 4421547 4438020 4525040 4534920 4554810 4581603 4644120 4654260 4699080 4807855 4822740 4912830 5045328 5090670 5201820 5224635 5263336 5325624 5441904 5465772 5572944 5638896 5769426 5882552 5895396 5917360 5921253 5991327 6073080 6108804 6205680 6269562 6306660 6430320 6550440 6579170 6617871 6657030 6787560 6802380 6832215 6935760 6966180 7048620 7287696 7353190 7369245 7636005 7692568 7860528 7895004 7988436 8145072 8198658 8359416 8408880 8654139 8823828 8843094 8876040 9069840 9109620 9163206 9288240 9308520 9398160 9615710 9645480 9825660 9868755 9985545 10181340 10403640 10449270 10526672 10651248 10931544 11029785 11538852 11765104 11790792 11842506 11982654 12146160 12217608 12500423 12539124 12613320 13100880 13158340 13235742 13314060 13575120 13604760 13664430 13932360 14097240 14423565 14706380 14738490 15272010 15385136 15673905 15790008 15976872 16397316 16718832 17308278 17647656 17686188 17752080 17763759 18219240 18326412 18617040 19231420 19290960 19651320 19737510 19853613 19971090 20362680 20496645 20807280 20898540 21863088 22059570 22107735 22908015 23077704 23581584 23685012 23965308 24435216 25000846 25078248 25226640 25962417 26316680 26471484 26628120 27209520 27328860 27864720 28194480 28847130 29412760 29476980 29606265 29956635 30544020 31347810 31580016 31953744 32794632 33089355 34616556 35295312 35372376 35527518 36438480 36652824 37501269 38462840 39302640 39475020 39707226 39942180 40725360 40993290 41797080 43270695 44119140 44215470 45816030 46155408 47370024 47930616 50001692 50156496 51924834 52633360 52942968 53256240 53291277 54657720 57694260 58825520 58953960 59212530 59560839 59913270 61088040 62502115 62695620 65589264 66178710 69233112 70744752 71055036 73305648 75002538 76925680 77887251 78950040 79414452 79884360 81986580 83594160 86541390 88238280 88430940 88818795 91632060 94740048 95861232 99268065 100003384 103849668 105885936 106582554 109315440 112503807 115388520 117907920 118425060 119121678 119826540 122176080 125004230 125391240 129812085 132357420 138466224 142110072 150005076 155774502 157900080 158828904 159768720 163973160 173082780 176476560 176861880 177637590 183264120 187506345 198536130 200006768 207699336 213165108 225007614 230777040 236850120 238243356 239653080 250008460 250782480 259624170 264714840 266456385 284220144 297804195 300010152 311549004 317657808 327946320 337511421 346165560 353723760 355275180 366528240 375012690 389436255 397072260 415398672 426330216 450015228 473700240 476486712 479306160 500016920 519248340 529429680 532912770 562519035 595608390 600020304 623098008 675022842 692331120 710550360 750025380 778872510 794144520 852660432 900030456 952973424 1000033840 1012534263 1038496680 1065825540 1125038070 1191216780 1246196016 1350045684 1421100720 1500050760 1557745020 1588289040 1687557105 1800060912 2025068526 2076993360 2131651080 2250076140 2382433560 2700091368 3000101520 3115490040 3375114210 4050137052 4263302160 4500152280 4764867120 5062671315 5400182736 6230980080 6750228420 8100274104 9000304560 10125342630 13500456840 16200548208 20250685260 27000913680 40501370520 81002741040
• Sum of all divisors σ(n): 341019914400
• Sum of proper divisors (its aliquot sum) s(n): 260017173360
• 81002741040 is an abundant number, because the sum of its proper divisors (260017173360) is greater than itself. Its abundance is 179014432320

Bases of 81002741040

• Binary: 1001011011100001000111011110100110000₂
• Hexadecimal: 0x12DC23BD30
• Base-36: 117MXV00

Squares and roots of 81002741040

• 81002741040 squared (81002741040²) is 6561444055993300281600
• 81002741040 cubed (81002741040³) is 531494953716072562685403876864000
• The square root of 81002741040 is 284609.8048908365
• The cube root of 81002741040 is 4326.7975160971

Scales and comparisons

• 81,002,741,040 seconds is equal to 2,575 years, 33 weeks, 17 hours, 24 minutes.
• To count from 1 to 81,002,741,040 would take you about five thousand, one hundred fifty-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 81002741040 cubic inches would be around 360.6 feet tall.

Recreational maths with 81002741040

• 81002741040 backwards is 04014720018
• 81002741040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81002741040's digits is 27
• More coming soon!