81012382080

Names of 81012382080

• Cardinal: 81012382080 can be written as Eighty-one billion, twelve million, three hundred eighty-two thousand and eighty.

Scientific notation

• Scientific notation: 8.101238208 × 10¹⁰

Factors of 81012382080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 71

Divisors of 81012382080

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 17 20 21 24 28 30 32 34 35 37 40 42 48 49 51 56 60 64 68 70 74 80 84 85 96 98 102 105 111 112 119 120 128 136 140 147 148 160 168 170 185 192 196 204 210 222 224 238 240 245 255 259 272 280 294 296 320 336 340 357 370 384 392 408 420 444 448 476 480 490 510 518 544 555 560 588 592 595 629 640 672 680 714 735 740 777 784 816 833 840 888 896 952 960 980 1020 1036 1088 1110 1120 1176 1184 1190 1258 1295 1344 1360 1369 1428 1470 1480 1554 1568 1632 1666 1680 1776 1785 1813 1887 1904 1920 1960 2040 2072 2176 2220 2240 2352 2368 2380 2499 2516 2590 2688 2720 2738 2856 2940 2960 3108 3136 3145 3264 3332 3360 3552 3570 3626 3774 3808 3885 3920 4080 4107 4144 4165 4403 4440 4480 4704 4736 4760 4998 5032 5180 5439 5440 5476 5712 5880 5920 6216 6272 6290 6528 6664 6720 6845 7104 7140 7252 7548 7616 7770 7840 8160 8214 8288 8330 8806 8880 9065 9408 9435 9520 9583 9996 10064 10360 10878 10880 10952 11424 11760 11840 12432 12495 12580 13209 13328 13440 13690 14208 14280 14504 15096 15232 15540 15680 16320 16428 16576 16660 17612 17760 18130 18816 18870 19040 19166 19992 20128 20535 20720 21756 21904 22015 22848 23273 23520 23680 24864 24990 25160 26418 26656 27195 27380 28560 28749 29008 30192 30821 31080 31360 32640 32856 33152 33320 35224 35520 36260 37740 38080 38332 39984 40256 41070 41440 43512 43808 44030 45696 46546 47040 47915 49728 49980 50320 50653 52836 53312 54390 54760 57120 57498 58016 60384 61642 62160 65712 66045 66640 67081 69819 70448 71040 72520 75480 76160 76664 79968 80512 82140 82880 87024 87616 88060 92463 93092 94080 95830 99456 99960 100640 101306 105672 106624 108780 109520 114240 114996 116032 116365 120768 123284 124320 131424 132090 133280 134162 139638 140896 143745 145040 150960 151959 153328 154105 159936 162911 164280 165760 174048 175232 176120 184926 186184 191660 199920 201243 201280 202612 211344 217560 219040 228480 229992 232064 232730 241536 246568 248640 253265 262848 264180 266560 268324 279276 281792 287490 290080 301920 303918 306656 308210 319872 325822 328560 335405 348096 349095 352240 354571 369852 372368 383320 399840 402486 402560 405224 422688 435120 438080 459984 462315 465460 488733 493136 497280 506530 525696 528360 533120 536648 558552 563584 574980 580160 603840 607836 613312 616420 651644 657120 670810 696192 698190 704480 709142 739704 744736 759795 766640 799680 804972 810448 814555 845376 861101 870240 876160 919968 924630 930920 977466 986272 1006215 1013060 1056720 1063713 1073296 1117104 1140377 1149960 1160320 1207680 1215672 1226624 1232840 1303288 1314240 1341620 1396380 1408960 1418284 1479408 1489472 1519590 1533280 1599360 1609944 1620896 1629110 1690752 1722202 1740480 1772855 1839936 1849260 1861840 1954932 1972544 2012430 2026120 2113440 2127426 2146592 2234208 2280754 2299920 2431344 2443665 2465680 2481997 2583303 2606576 2628480 2683240 2792760 2817920 2836568 2958816 2978944 3039180 3066560 3219888 3241792 3258220 3421131 3444404 3480960 3545710 3679872 3698520 3723680 3909864 3945088 4024860 4052240 4226880 4254852 4293184 4305505 4468416 4561508 4599840 4862688 4887330 4931360 4963994 5166606 5213152 5318565 5366480 5585520 5673136 5701885 5917632 6027707 6078360 6133120 6439776 6483584 6516440 6842262 6888808 7091420 7397040 7445991 7447360 7819728 8049720 8104480 8453760 8509704 8586368 8611010 8936832 9123016 9199680 9725376 9774660 9862720 9927988 10333212 10426304 10637130 10732960 11171040 11346272 11403770 11835264 12055414 12156720 12409985 12879552 12916515 13032880 13684524 13777616 14182840 14794080 14891982 14894720 15639456 16099440 16208960 17019408 17105655 17222020 18083121 18246032 18399360 19450752 19549320 19725440 19855976 20666424 20852608 21274260 21465920 22342080 22692544 22807540 24110828 24313440 24819970 25759104 25833030 26065760 27369048 27555232 28365680 29588160 29783964 30138535 31278912 32198880 32417920 34038816 34211310 34444040 36166242 36492064 37229955 39098640 39711952 41332848 42193949 42548520 42931840 44684160 45385088 45615080 48221656 48626880 49639940 51666060 52131520 54738096 55110464 56731360 59176320 59567928 60277070 62557824 64397760 68077632 68422620 68888080 72332484 72984128 74459910 78197280 79423904 82665696 84387898 85097040 90415605 91230160 96443312 97253760 99279880 103332120 104263040 109476192 110220928 113462720 119135856 120554140 126581847 128795520 136155264 136845240 137776160 144664968 145968256 148919820 156394560 158847808 165331392 168775796 170194080 180831210 182460320 192886624 198559760 206664240 210969745 218952384 226925440 238271712 241108280 253163694 273690480 275552320 289329936 297839640 312789120 317695616 330662784 337551592 340388160 361662420 364920640 385773248 397119520 413328480 421939490 437904768 476543424 482216560 506327388 547380960 551104640 578659872 595679280 632909235 675103184 680776320 723324840 729841280 771546496 794239040 826656960 843878980 953086848 964433120 1012654776 1094761920 1157319744 1191358560 1265818470 1350206368 1446649680 1588478080 1653313920 1687757960 1928866240 2025309552 2189523840 2314639488 2382717120 2531636940 2700412736 2893299360 3375515920 3857732480 4050619104 4765434240 5063273880 5400825472 5786598720 6751031840 8101238208 10126547760 11573197440 13502063680 16202476416 20253095520 27004127360 40506191040 81012382080
• Sum of all divisors σ(n): 326890987200
• Sum of proper divisors (its aliquot sum) s(n): 245878605120
• 81012382080 is an abundant number, because the sum of its proper divisors (245878605120) is greater than itself. Its abundance is 164866223040

Bases of 81012382080

• Binary: 1001011011100101101101101100110000000₂
• Hexadecimal: 0x12DCB6D980
• Base-36: 117SOI2O

Squares and roots of 81012382080

• 81012382080 squared (81012382080²) is 6563006050275905126400
• 81012382080 cubed (81012382080³) is 531684753738303315517747494912000
• The square root of 81012382080 is 284626.7416811005
• The cube root of 81012382080 is 4326.9691694367

Scales and comparisons

• 81,012,382,080 seconds is equal to 2,575 years, 49 weeks, 7 hours, 28 minutes.
• To count from 1 to 81,012,382,080 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 81012382080 cubic inches would be around 360.6 feet tall.

Recreational maths with 81012382080

• 81012382080 backwards is 08028321018
• The number of decimal digits it has is: 11
• The sum of 81012382080's digits is 33
• More coming soon!