81470399072040

Names of 81470399072040

• Cardinal: 81470399072040 can be written as Eighty-one trillion, four hundred seventy billion, three hundred ninety-nine million, seventy-two thousand and forty.

Scientific notation

• Scientific notation: 8.147039907204 × 10¹³

Factors of 81470399072040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 813

Divisors of 81470399072040

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 30 33 36 40 44 45 55 59 60 66 72 88 90 99 110 118 120 121 132 165 177 180 198 220 236 242 264 295 330 354 360 363 396 440 472 484 495 531 590 605 649 660 708 726 733 792 885 968 990 1062 1089 1180 1210 1298 1320 1416 1452 1466 1770 1815 1947 1980 2124 2178 2199 2360 2420 2596 2655 2904 2932 3245 3481 3540 3630 3665 3894 3960 4248 4356 4398 4840 5192 5310 5445 5841 5864 6490 6597 6962 7080 7139 7260 7330 7788 8063 8712 8796 9735 10443 10620 10890 10995 11682 12980 13194 13924 14278 14520 14660 15576 16126 17405 17592 19470 20886 21240 21417 21780 21990 23364 24189 25960 26388 27848 28556 29205 29320 31329 32252 32985 34810 35695 38291 38940 40315 41772 42834 43247 43560 43980 46728 48378 52215 52776 57112 58410 62658 64251 64504 65970 69620 71390 72567 76582 77880 80630 83544 85668 86494 87960 88693 96756 104430 107085 114873 116820 120945 125316 128502 129741 131940 139240 142780 145134 153164 156645 161260 171336 172988 177386 191455 193512 208860 214170 216235 229746 233640 241890 250632 257004 259482 263880 266079 285560 290268 306328 313290 321255 322520 344619 345976 354772 362835 382910 389223 417720 421201 428340 432470 443465 459492 475717 483780 514008 518964 532158 537289 574365 580536 626580 642510 648705 689238 709544 725670 765820 778446 798237 842402 856680 864940 886930 918984 951434 967560 1037928 1064316 1074578 1148730 1253160 1263603 1285020 1297410 1330395 1378476 1427151 1451340 1531640 1556892 1596474 1611867 1684804 1723095 1729880 1773860 1902868 1946115 2106005 2128632 2149156 2297460 2378585 2527206 2551573 2570040 2594820 2660790 2686445 2756952 2854302 2902680 3113784 3192948 3223734 3369608 3446190 3547720 3790809 3805736 3892230 3991185 4212010 4281453 4298312 4594920 4757170 4835601 5054412 5103146 5189640 5232887 5321580 5372890 5708604 5910179 6318015 6385896 6447468 6892380 7135755 7581618 7654719 7784460 7982370 8059335 8424020 8562906 9514340 9671202 10108824 10206292 10465774 10643160 10745780 11417208 11820358 12636030 12757865 12894936 13784760 14271510 15163236 15309438 15568920 15698661 15964740 16118670 16848040 17125812 17730537 18954045 19028680 19342404 20412584 20931548 21407265 21491560 22964157 23640716 24178005 25272060 25515730 26164435 28067303 28543020 29550895 30326472 30618876 31397322 31700051 31929480 32237340 34251624 35461074 37908090 38273595 38684808 41863096 42814530 45928314 47095983 47281432 48356010 50544120 51031460 52328870 53191611 56134606 57086040 59101790 61237752 62794644 63400102 64474680 65011969 70922148 75816180 76547190 78493305 84201909 85629060 88652685 91856628 94191966 95100153 96712020 102062920 104657740 106383222 112269212 114820785 118203580 125589288 126800204 130023938 140336515 141844296 151632360 153094380 156986610 158500255 168403818 171258120 177305370 183713256 188383932 190200306 193424040 195035907 209315480 212766444 224538424 229641570 235479915 236407160 252605727 253600408 260047876 265958055 280673030 285300459 306188760 308740333 313973220 317000510 325059845 336807636 348700561 354610740 376767864 380400612 390071814 421009545 425532888 459283140 470959830 475500765 505211454 520095752 531916110 561346060 570600918 585107721 617480666 627946440 634001020 650119690 673615272 697401122 709221480 760801224 780143628 842019090 918566280 926220999 941919660 951001530 975179535 1010422908 1046101683 1063832220 1122692120 1141201836 1170215442 1234961332 1263028635 1268002040 1300239380 1394802244 1426502295 1543701665 1560287256 1684038180 1743502805 1852441998 1870303009 1883839320 1902003060 1950359070 2020845816 2092203366 2127664440 2282403672 2340430884 2469922664 2526057270 2600478760 2778662997 2789604488 2853004590 2925538605 3087403330 3138305049 3368076360 3487005610 3704883996 3740606018 3804006120 3835706171 3900718140 4184406732 4631104995 4680861768 5052114540 5230508415 5557325994 5610909027 5706009180 5851077210 6174806660 6276610098 6974011220 7409767992 7481212036 7671412342 7801436280 8368813464 9262209990 9351515045 10104229080 10461016830 11114651988 11221818054 11412018360 11507118513 11702154420 12349613320 12553220196 13893314985 13948022440 14962424072 15342824684 15691525245 16832727081 18524419980 18703030090 19178530855 20573333099 20922033660 22229303976 22443636108 23014237026 23404308840 25106440392 27786629970 28054545135 30685649368 31383050490 33665454162 34521355539 37048839960 37406060180 38357061710 41146666198 41844067320 44887272216 46028474052 55573259940 56109090270 57535592565 61719999297 62766100980 67330908324 69042711078 74812120360 76714123420 82293332396 84163635405 92056948104 102866665495 111146519880 112218180540 115071185130 123439998594 125532201960 134661816648 138085422156 153428246840 164586664792 168327270810 172606777695 185159997891 205733330990 224436361080 226306664089 230142370260 246879997188 276170844312 308599996485 336654541620 345213555390 370319995782 411466661980 452613328178 460284740520 493759994376 617199992970 673309083240 678919992267 690427110780 740639991564 822933323960 905226656356 925799989455 1131533320445 1234399985940 1357839984534 1380854221560 1481279983128 1810453312712 1851599978910 2036759976801 2263066640890 2468799971880 2715679969068 3394599961335 3703199957820 4073519953602 4526133281780 5431359938136 6789199922670 7406399915640 8147039907204 9052266563560 10183799884005 13578399845340 16294079814408 20367599768010 27156799690680 40735199536020 81470399072040
• Sum of all divisors σ(n): 296458748725230
• Sum of proper divisors (its aliquot sum) s(n): 214988349653190
• 81470399072040 is an abundant number, because the sum of its proper divisors (214988349653190) is greater than itself. Its abundance is 133517950581150

Bases of 81470399072040

• Binary: 10010100001100011001110001100100100011100101000₂
• Hexadecimal: 0x4A18CE324728
• Base-36: SVMZG3QY0

Squares and roots of 81470399072040

• 81470399072040 squared (81470399072040²) is 6637425924957456093109761600
• 81470399072040 cubed (81470399072040³) is 540753738917388169564568565294505625664000
• The square root of 81470399072040 is 9026095.4499739255
• The cube root of 81470399072040 is 43351.0826364993

Scales and comparisons

• 81,470,399,072,040 seconds is equal to 2,590,506 years, 35 weeks, 4 days, 16 hours, 54 minutes.
• To count from 1 to 81,470,399,072,040 would take you about six million, four hundred seventy-six thousand, two hundred sixty-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 81470399072040 cubic inches would be around 3612.6 feet tall.

Recreational maths with 81470399072040

• 81470399072040 backwards is 04027099307418
• The number of decimal digits it has is: 14
• The sum of 81470399072040's digits is 54
• More coming soon!