81164593770390

Names of 81164593770390

• Cardinal: 81164593770390 can be written as Eighty-one trillion, one hundred sixty-four billion, five hundred ninety-three million, seven hundred seventy thousand, three hundred ninety.

Scientific notation

• Scientific notation: 8.116459377039 × 10¹³

Factors of 81164593770390

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3343

Divisors of 81164593770390

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 27 30 37 39 45 53 54 61 65 74 78 90 106 111 117 122 130 135 159 183 185 195 222 234 265 270 305 318 333 351 366 370 390 477 481 530 549 555 585 610 666 689 702 793 795 915 954 962 999 1098 1110 1170 1378 1431 1443 1586 1590 1647 1665 1755 1830 1961 1998 2067 2257 2379 2385 2405 2745 2862 2886 3169 3233 3294 3330 3445 3510 3721 3922 3965 4134 4329 4514 4758 4770 4810 4995 5490 5883 6201 6338 6466 6771 6890 7137 7155 7215 7442 7930 8235 8658 9507 9699 9805 9990 10335 11163 11285 11766 11895 12402 12987 13542 14274 14310 14430 15845 16165 16470 17649 18603 18605 19014 19398 19610 20313 20670 21411 21645 22326 22570 23790 25493 25974 28521 29097 29341 29415 31005 31690 32330 33489 33855 35298 35685 37206 37210 40626 41197 42029 42822 43290 47535 48373 48495 50986 52947 55815 57042 58194 58682 58830 60939 62010 64935 66978 67710 71370 76479 82394 84058 85563 87291 88023 88245 93015 95070 96746 96990 100467 101565 105894 107055 111630 117253 119621 121878 123591 126087 127465 129870 137677 142605 145119 145485 146705 152958 167445 167957 171126 174582 176046 176490 186030 193309 197213 200934 203130 205985 210145 214110 229437 234506 239242 241865 247182 252174 254930 264069 264735 275354 285210 290238 290970 293410 304695 334890 335914 351759 358863 370773 378261 382395 386618 394426 411970 413031 420290 427815 435357 436455 440115 458874 483730 502335 503871 528138 529470 579927 586265 591639 598105 609390 617955 630435 688311 688385 703518 717726 725595 741546 756522 764790 792207 826062 839785 855630 870714 872910 880230 966545 986065 1004670 1007742 1055277 1076589 1112319 1134783 1147185 1159854 1172530 1183278 1196210 1235910 1239093 1260870 1306071 1320345 1376622 1376770 1451190 1511613 1524289 1555073 1584414 1679570 1739781 1758795 1774917 1789801 1794315 1853865 1891305 1933090 1972130 2065155 2110554 2153178 2176785 2183441 2224638 2269566 2294370 2478186 2513017 2519355 2563769 2612142 2640690 2899635 2958195 3023226 3048578 3110146 3165831 3229767 3441555 3479562 3517590 3549834 3579602 3588630 3707730 3717279 3782610 3961035 4130310 4353570 4366882 4534839 4572867 4665219 5026034 5038710 5127538 5219343 5276385 5324751 5369403 5382945 5561595 5673915 5799270 5916390 6195465 6214409 6331662 6459534 6530355 6550323 6883110 7152433 7296881 7434558 7539051 7558065 7621445 7691307 7775365 7922070 8698905 8874585 8949005 9069678 9145734 9330438 10245377 10438686 10552770 10649502 10738806 10765890 10917205 11123190 11347830 11791849 12390930 12428818 12565085 12818845 13060710 13100646 13718601 13995657 14304866 14593762 15078102 15116130 15242890 15382614 15550730 15829155 16108209 16148835 17397810 17749170 17898010 18586395 18643227 19650969 20490754 21457299 21834410 21890643 22617153 22674195 22864335 23073921 23326095 23583698 25130170 25637690 26096715 26623755 26847015 27437202 27991314 30736131 31072045 31658310 32216418 32297670 32751615 35375547 35762165 36484405 37172790 37286454 37695255 38456535 39301938 41155803 41986971 42914598 43781286 45234306 45348390 45728670 46147842 46652190 48324627 51226885 52193430 53247510 53694030 55929681 58952907 58959245 61472262 62144090 64371897 65503230 65671929 67851459 68593005 69221763 69978285 70751094 71524330 72968810 75390510 76913070 80541045 80787317 82311606 83973942 92208393 92981629 93216135 94859453 96649254 98254845 102453770 106126641 107286495 109453215 111859362 113085765 115369605 117905814 117918490 128743794 131343858 133189901 135702918 137186010 138443526 139956570 153294037 153680655 161082090 161574634 167789043 176877735 184416786 185963258 186432270 189718906 193115691 196509690 197015787 205779015 209934855 212253282 214572990 218906430 226171530 230739210 241623135 242361951 266379802 276625179 278944887 279648405 284578359 294764535 306588074 307361310 318379923 321859485 328359645 335578086 339257295 346108815 353755470 379078949 386231382 394031574 399569703 403936585 411558030 419869710 436298413 459882111 461041965 464908145 474297265 483246270 484723902 530633205 553250358 557889774 559296810 569156718 589529070 624967997 636759846 643718970 656719290 665949505 678514590 692217630 727085853 758157898 766470185 799139406 807873170 836834661 838945215 853735077 872596826 919764222 922083930 929816290 948594530 965578455 985078935 1061266410 1137236847 1198709109 1211809755 1249935994 1308895239 1331899010 1379646333 1383125895 1394724435 1422891795 1454171706 1532940370 1591899615 1673669322 1677890430 1707470154 1874903991 1895394745 1931156910 1970157870 1997848515 2181257559 2181492065 2274473694 2299410555 2397418218 2423619510 2510503983 2561205231 2617790478 2759292666 2766251790 2789448870 2845783590 3124839985 3183799230 3411710541 3596127327 3635429265 3749807982 3790789490 3926685717 3995697030 4138938999 4184173305 4268675385 4362515118 4362984130 4598821110 4928026337 5021007966 5122410462 5624711973 5671879369 5686184235 5993545545 6249679970 6544476195 6823421082 6898231665 7192254654 7270858530 7853371434 8124583961 8277877998 8368346610 8537350770 9374519955 9856052674 10235131623 10906287795 11249423946 11343758738 11372368470 11780057151 11987091090 12552519915 12806026155 13088952390 13796463330 14784079011 16249167922 16874135919 17015638107 17058552705 17980636635 18749039910 19633428585 20470263246 20694694995 21812575590 23123815889 23560114302 24373751883 24640131685 25105039830 25612052310 28123559865 28359396845 29568158022 33748271838 34031276214 34117105410 35961273270 39266857170 40622919805 41389389990 44352237033 46247631778 48747503766 49280263370 51046914321 51175658115 56247119730 56718793690 58900285755 69371447667 73121255649 73920395055 81245839610 84370679595 85078190535 88704474066 102093828642 102351316230 115619079445 117800571510 121868759415 133056711099 138742895334 146242511298 147840790110 153140742963 168741359190 170156381070 208114343001 219363766947 221761185165 231238158890 243737518830 255234571605 266113422198 300609606557 306281485926 346857238335 365606278245 416228686002 438727533894 443522370330 510469143210 601219213114 624343029003 665283555495 693714476670 731212556490 765703714815 901828819671 1040571715005 1096818834735 1248686058006 1330567110990 1503048032785 1531407429630 1803657639342 2081143430010 2193637669470 2705486459013 3006096065570 3121715145015 4509144098355 5410972918026 6243430290030 8116459377039 9018288196710 13527432295065 16232918754078 27054864590130 40582296885195 81164593770390
• Sum of all divisors σ(n): 248046721977600
• Sum of proper divisors (its aliquot sum) s(n): 166882128207210
• 81164593770390 is an abundant number, because the sum of its proper divisors (166882128207210) is greater than itself. Its abundance is 85717534436820

Bases of 81164593770390

• Binary: 10010011101000110011010110001111010111110010110₂
• Hexadecimal: 0x49D19AC7AF96
• Base-36: SRQHZIU1I

Squares and roots of 81164593770390

• 81164593770390 squared (81164593770390²) is 6587691281912431196040752100
• 81164593770390 cubed (81164593770390³) is 534687286781162226339668724728230310319000
• The square root of 81164593770390 is 9009139.4578167121
• The cube root of 81164593770390 is 43296.7741073937

Scales and comparisons

• 81,164,593,770,390 seconds is equal to 2,580,783 years, 1 week, 1 day, 11 hours, 46 minutes, 30 seconds.
• To count from 1 to 81,164,593,770,390 would take you about six million, four hundred fifty-one thousand, nine hundred fifty-seven 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 81164593770390 cubic inches would be around 3608.1 feet tall.

Recreational maths with 81164593770390

• 81164593770390 backwards is 09307739546118
• The number of decimal digits it has is: 14
• The sum of 81164593770390's digits is 63
• More coming soon!