81011313399390

Names of 81011313399390

• Cardinal: 81011313399390 can be written as Eighty-one trillion, eleven billion, three hundred thirteen million, three hundred ninety-nine thousand, three hundred ninety.

Scientific notation

• Scientific notation: 8.101131339939 × 10¹³

Factors of 81011313399390

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3532

Divisors of 81011313399390

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 5 6 10 11 15 19 22 30 33 38 55 57 66 95 109 110 114 137 165 190 209 218 274 285 293 327 330 411 418 545 570 586 627 654 685 822 879 1045 1090 1199 1254 1370 1465 1507 1635 1758 2055 2071 2090 2398 2603 2930 2953 3014 3135 3223 3270 3597 4110 4142 4395 4521 5206 5567 5906 5995 6213 6270 6446 7194 7535 7809 8790 8859 9042 9669 10355 11134 11990 12426 13015 14765 14933 15070 15618 16115 16701 17718 17985 19338 20710 22605 22781 26030 27835 28633 29530 29866 31065 31937 32230 32483 33402 35970 39045 40141 44295 44799 45210 45562 48345 55670 56107 57266 61237 62130 63874 64966 68343 74665 78090 80282 83505 85899 88590 89598 95811 96690 97449 112214 113905 120423 122474 136686 143165 149330 159685 162415 164263 167010 168321 171798 183711 191622 194898 200705 223995 227810 240846 280535 283727 286330 306185 319370 321877 324830 328526 336642 341715 351307 367422 401410 404561 429495 441551 447990 479055 487245 492789 561070 567454 602115 606803 612370 617177 643754 683430 702614 762679 809122 821315 841605 851181 858990 865229 883102 918555 958110 965631 974490 985578 1053921 1204230 1213606 1213683 1234354 1324653 1418635 1525358 1609385 1642630 1683210 1702362 1730458 1756535 1820409 1837110 1851531 1931262 2022805 2107842 2207755 2288037 2427366 2463945 2595687 2649306 2837270 3034015 3085885 3120997 3218770 3513070 3540647 3640818 3703062 3813395 4045610 4255905 4326145 4375369 4415510 4450171 4576074 4828155 4927890 5191374 5269605 6068030 6068415 6115663 6171770 6241994 6623265 6674833 7081294 7626790 7686659 8389469 8511810 8652290 8750738 8900342 9102045 9257655 9362991 9517519 9656310 10539210 10621941 11440185 12136830 12231326 12978435 13126107 13246530 13349666 13350513 15373318 15604985 16439351 16778938 17703235 18204090 18346989 18515310 18725982 19035038 20024499 21243882 21876845 22250855 22880370 23059977 25168407 25956870 26252214 26701026 28552557 30578315 31209970 32878702 33374165 35406470 36693978 38433295 40048998 41947345 43753690 44097149 44501710 46119954 46814955 47587595 48129059 49318053 50336814 53109705 57105114 61156630 65630535 66748330 66752565 67272293 76866590 82196755 83132011 83894690 84553249 88194298 91734945 93629910 94309961 95175190 96258118 98636106 100122495 106219410 115299885 118536373 125842035 131261070 132291447 133505130 134544586 142762785 144387177 164393510 166264022 169106498 180832861 183469890 188619922 200244990 201816879 220485745 230599770 237072746 240645295 246590265 249396033 251684070 253659747 264582894 282929883 285525570 288774354 336361465 355609119 361665722 403633758 415660055 422766245 440971490 471549805 481290590 485068639 493180530 498792066 507319494 542498583 565859766 592681865 661457235 672722930 711218238 721935885 831320110 837845831 845532490 904164305 914452121 943099610 970137278 1009084395 1037409571 1084997166 1185363730 1246980165 1268298735 1303900103 1322914470 1414649415 1443871770 1455205917 1675691662 1778045595 1791889259 1808328610 1828904242 2018168790 2074819142 2252191087 2425343195 2493960330 2513537493 2536597470 2607800206 2712492915 2743356363 2829298830 2910411834 3112228713 3556091190 3583778518 3911700309 4189229155 4504382174 4572260605 4850686390 5027074986 5187047855 5375667777 5424985830 5486712726 6224457426 6519500515 6756573261 7276029585 7823400618 8378458310 8959446295 9144521210 9216304141 10374095710 10751335554 11260955435 12567687465 12920464657 13039001030 13513146522 13716781815 14552059170 15561143565 17918892590 18432608282 19558501545 19710781849 22521910870 24774101957 25135374930 25840929314 26878338885 27433563630 27648912423 31122287130 33782866305 38761393971 39117003090 39421563698 46081520705 49548203914 53756677770 55297824846 59132345547 64602323285 67565732610 74322305871 77522787942 92163041410 98553909245 118264691094 123870509785 129204646570 138244562115 142125111227 148644611742 193806969855 197107818490 245488828483 247741019570 276489124230 284250222454 295661727735 371611529355 387613939710 426375333681 490977656966 591323455470 710625556135 736466485449 743223058710 852750667362 1227444142415 1421251112270 1472932970898 2131876668405 2454888284830 2700377113313 3682332427245 4263753336810 5400754226626 7364664854490 8101131339939 13501885566565 16202262679878 27003771133130 40505656699695 81011313399390
• Sum of all divisors σ(n): 227810286950400
• Sum of proper divisors (its aliquot sum) s(n): 146798973551010
• 81011313399390 is an abundant number, because the sum of its proper divisors (146798973551010) is greater than itself. Its abundance is 65787660151620

Bases of 81011313399390

• Binary: 10010011010110111101010100011101101011001011110₂
• Hexadecimal: 0x49ADEA8ED65E
• Base-36: SPS30CIU6

Squares and roots of 81011313399390

• 81011313399390 squared (81011313399390²) is 6562832898694185757652372100
• 81011313399390 cubed (81011313399390³) is 531663712743941805102789311134348193019000
• The square root of 81011313399390 is 9000628.5002431913
• The cube root of 81011313399390 is 43269.5014284575

Scales and comparisons

• 81,011,313,399,390 seconds is equal to 2,575,909 years, 9 weeks, 3 days, 2 hours, 56 minutes, 30 seconds.
• To count from 1 to 81,011,313,399,390 would take you about six million, four hundred thirty-nine thousand, seven hundred seventy-two 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 81011313399390 cubic inches would be around 3605.8 feet tall.

Recreational maths with 81011313399390

• 81011313399390 backwards is 09399331311018
• The number of decimal digits it has is: 14
• The sum of 81011313399390's digits is 51
• More coming soon!