821104081385840

Names of 821104081385840

• Cardinal: 821104081385840 can be written as Eight hundred twenty-one trillion, one hundred four billion, eighty-one million, three hundred eighty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 8.2110408138584 × 10¹⁴

Factors of 821104081385840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 797870

Divisors of 821104081385840

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 56 68 70 80 85 112 119 136 140 170 238 257 272 280 340 421 476 514 560 595 680 842 952 1028 1190 1285 1360 1684 1799 1904 2056 2105 2380 2570 2947 3368 3598 4112 4210 4369 4760 5140 5894 6736 7157 7196 8420 8738 8995 9520 10280 11788 14314 14392 14735 16840 17476 17990 20560 21845 23576 28628 28784 29470 30583 33680 34952 35785 35980 43690 47152 50099 57256 58940 61166 69904 71570 71960 87380 100198 108197 114512 117880 122332 143140 143920 152915 174760 200396 216394 235760 244664 250495 286280 305830 349520 400792 432788 489328 500990 540985 572560 611660 757379 797161 801584 865576 1001980 1081970 1223320 1514758 1594322 1731152 1839349 2003960 2163940 2446640 3029516 3188644 3678698 3786895 3985805 4007920 4327880 5580127 6059032 6377288 7357396 7573790 7971610 8655760 9196745 11160254 12118064 12754576 12875443 13551737 14714792 15147580 15943220 18393490 22320508 25750886 27103474 27900635 29429584 30295160 31886440 36786980 44641016 51501772 54206948 55801270 60590320 63772880 64377215 67758685 73573960 89282032 94862159 103003544 108413896 111602540 128754430 135517370 147147920 189724318 204870377 206007088 216827792 223205080 257508860 271034740 335604781 379448636 409740754 446410160 474310795 515017720 542069480 671209562 758897272 819481508 948621590 1024351885 1030035440 1084138960 1342419124 1434092639 1517794544 1638963016 1678023905 1897243180 2048703770 2349233467 2684838248 2868185278 3277926032 3356047810 3482796409 3794486360 4097407540 4698466934 5369676496 5705281277 5736370556 6712095620 6965592818 7170463195 7588972720 8194815080 9396933868 11410562554 11472741112 11746167335 13424191240 13931185636 14340926390 16389630160 17413982045 18793867736 22821125108 22945482224 23492334670 24379574863 26848382480 27862371272 28526406385 28681852780 34827964090 37587735472 39936968939 45642250216 46984669340 48759149726 55724742544 57052812770 57363705560 69655928180 79873937878 86250428717 91284500432 93969338680 97518299452 114105625540 114727411120 121897874315 139311856360 159747875756 172500857434 187938677360 195036598904 199684844695 228211251080 243795748630 278623712720 319495751512 345001714868 390073197808 399369689390 431252143585 456422502160 487591497260 603753001019 638991503024 690003429736 798739378780 862504287170 975182994520 1207506002038 1380006859472 1466257288189 1597478757560 1725008574340 1950365989040 2415012004076 2932514576378 3018765005095 3194957515120 3450017148680 4830024008152 5865029152756 6037530010190 6900034297360 7331286440945 9660048016304 10263801017323 11730058305512 12075060020380 14662572881890 20527602034646 23460116611024 24150120040760 29325145763780 41055204069292 48300240081520 51319005086615 58650291527560 82110408138584 102638010173230 117300583055120 164220816277168 205276020346460 410552040692920 821104081385840
• Sum of all divisors σ(n): 2324631836683008
• Sum of proper divisors (its aliquot sum) s(n): 1503527755297168
• 821104081385840 is an abundant number, because the sum of its proper divisors (1503527755297168) is greater than itself. Its abundance is 682423673911328

Bases of 821104081385840

• Binary: 10111010101100101000110001000110000011100101110000₂
• Hexadecimal: 0x2EACA31183970
• Base-36: 832209S0A8

Squares and roots of 821104081385840

• 821104081385840 squared (821104081385840²) is 674211912468484158374952505600
• 821104081385840 cubed (821104081385840³) is 553598153046825050632363758196727028360704000
• The square root of 821104081385840 is 28654913.7389355963
• The cube root of 821104081385840 is 93641.0059002749

Scales and comparisons

• 821,104,081,385,840 seconds is equal to 26,108,569 years, 49 weeks, 1 day, 11 hours, 37 minutes, 20 seconds.
• To count from 1 to 821,104,081,385,840 would take you about sixty-five million, two hundred seventy-one thousand, four hundred twenty-four 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 821104081385840 cubic inches would be around 7803.4 feet tall.

Recreational maths with 821104081385840

• 821104081385840 backwards is 048583180401128
• The number of decimal digits it has is: 15
• The sum of 821104081385840's digits is 53
• More coming soon!