21382855460388864

Names of 21382855460388864

• Cardinal: 21382855460388864 can be written as Twenty-one quadrillion, three hundred eighty-two trillion, eight hundred fifty-five billion, four hundred sixty million, three hundred eighty-eight thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 2.1382855460388864 × 10¹⁶

Factors of 21382855460388864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 42
• Sum of prime factors: 215

Divisors of 21382855460388864

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 104 108 117 128 144 156 162 192 197 208 216 234 243 256 288 312 324 351 384 394 416 432 468 486 512 576 591 624 648 702 768 788 832 864 936 972 1024 1053 1152 1182 1248 1296 1404 1536 1576 1664 1728 1773 1872 1944 2048 2106 2304 2364 2496 2561 2592 2808 3072 3152 3159 3328 3456 3546 3744 3888 4096 4212 4608 4728 4992 5122 5184 5319 5616 6144 6304 6318 6656 6912 7092 7488 7683 7776 8192 8424 9216 9456 9984 10244 10368 10638 11232 12288 12608 12636 13312 13824 14184 14976 15366 15552 15957 16384 16848 18432 18912 19968 20488 20736 21276 22464 23049 24576 25216 25272 26624 27648 28368 29952 30732 31104 31914 32768 33696 36864 37824 39936 40976 41472 42552 44928 46098 47871 49152 50432 50544 53248 55296 56736 59904 61464 62208 63828 65536 67392 69147 73728 75648 79872 81952 82944 85104 89856 92196 95742 98304 100864 101088 106496 110592 113472 119808 122928 124416 127656 131072 134784 138294 147456 151296 159744 163904 165888 170208 179712 184392 191484 196608 201728 202176 207441 212992 221184 226944 239616 245856 248832 255312 262144 269568 276588 294912 302592 319488 327808 331776 340416 359424 368784 382968 393216 403456 404352 414882 425984 442368 453888 479232 491712 497664 510624 524288 539136 553176 589824 605184 622323 638976 655616 663552 680832 718848 737568 765936 786432 806912 808704 829764 851968 884736 907776 958464 983424 995328 1021248 1048576 1078272 1106352 1179648 1210368 1244646 1277952 1311232 1327104 1361664 1437696 1475136 1531872 1572864 1613824 1617408 1659528 1703936 1769472 1815552 1916928 1966848 1990656 2042496 2097152 2156544 2212704 2359296 2420736 2489292 2555904 2622464 2654208 2723328 2875392 2950272 3063744 3145728 3227648 3234816 3319056 3407872 3538944 3631104 3833856 3933696 3981312 4084992 4194304 4313088 4425408 4718592 4841472 4978584 5111808 5244928 5308416 5446656 5750784 5900544 6127488 6291456 6455296 6469632 6638112 6815744 7077888 7262208 7667712 7867392 7962624 8169984 8388608 8626176 8850816 9437184 9682944 9957168 10223616 10489856 10616832 10893312 11501568 11801088 12254976 12582912 12910592 12939264 13276224 13631488 14155776 14524416 15335424 15734784 15925248 16339968 16777216 17252352 17701632 18874368 19365888 19914336 20447232 20979712 21233664 21786624 23003136 23602176 24509952 25165824 25821184 25878528 26552448 27262976 28311552 29048832 30670848 31469568 31850496 32679936 33554432 34504704 35403264 37748736 38731776 39828672 40894464 41959424 42467328 43573248 46006272 47204352 49019904 50331648 51642368 51757056 53104896 54525952 56623104 58097664 61341696 62939136 63700992 65359872 67108864 69009408 70806528 75497472 77463552 79657344 81788928 83918848 84934656 87146496 92012544 94408704 98039808 100663296 103284736 103514112 106209792 109051904 113246208 116195328 122683392 125878272 127401984 130719744 134217728 138018816 141613056 150994944 154927104 159314688 163577856 167837696 169869312 174292992 184025088 188817408 196079616 201326592 206569472 207028224 212419584 218103808 226492416 232390656 245366784 251756544 254803968 261439488 268435456 276037632 283226112 301989888 309854208 318629376 327155712 335675392 339738624 348585984 368050176 377634816 392159232 402653184 413138944 414056448 424839168 436207616 452984832 464781312 490733568 503513088 509607936 522878976 536870912 552075264 566452224 603979776 619708416 637258752 654311424 671350784 679477248 697171968 736100352 755269632 784318464 805306368 826277888 828112896 849678336 872415232 905969664 929562624 981467136 1007026176 1019215872 1045757952 1073741824 1104150528 1132904448 1207959552 1239416832 1274517504 1308622848 1342701568 1358954496 1394343936 1472200704 1510539264 1568636928 1610612736 1652555776 1656225792 1699356672 1744830464 1811939328 1859125248 1962934272 2014052352 2038431744 2091515904 2147483648 2208301056 2265808896 2415919104 2478833664 2549035008 2617245696 2685403136 2717908992 2788687872 2944401408 3021078528 3137273856 3221225472 3305111552 3312451584 3398713344 3489660928 3623878656 3718250496 3925868544 4028104704 4076863488 4183031808 4294967296 4416602112 4531617792 4831838208 4957667328 5098070016 5234491392 5370806272 5435817984 5577375744 5888802816 6042157056 6274547712 6442450944 6610223104 6624903168 6797426688 6979321856 7247757312 7436500992 7851737088 8056209408 8153726976 8366063616 8589934592 8833204224 9063235584 9663676416 9915334656 10196140032 10468982784 10741612544 10871635968 11154751488 11777605632 12084314112 12549095424 12884901888 13220446208 13249806336 13594853376 13958643712 14495514624 14873001984 15703474176 16112418816 16307453952 16732127232 17179869184 17666408448 18126471168 19327352832 19830669312 20392280064 20937965568 21483225088 21743271936 22309502976 23555211264 24168628224 25098190848 25769803776 26440892416 26499612672 27189706752 27917287424 28991029248 29746003968 31406948352 32224837632 32614907904 33464254464 34359738368 35332816896 36252942336 38654705664 39661338624 40784560128 41875931136 42966450176 43486543872 44619005952 47110422528 48337256448 50196381696 51539607552 52881784832 52999225344 54379413504 55834574848 57982058496 59492007936 62813896704 64449675264 65229815808 66928508928 70665633792 72505884672 77309411328 79322677248 81569120256 83751862272 85932900352 86973087744 89238011904 94220845056 96674512896 100392763392 103079215104 105763569664 105998450688 108758827008 111669149696 115964116992 118984015872 125627793408 128899350528 130459631616 133857017856 141331267584 145011769344 154618822656 158645354496 163138240512 167503724544 171865800704 173946175488 178476023808 188441690112 193349025792 200785526784 211527139328 211996901376 217517654016 223338299392 231928233984 237968031744 251255586816 257798701056 260919263232 267714035712 282662535168 290023538688 309237645312 317290708992 326276481024 335007449088 343731601408 347892350976 356952047616 376883380224 386698051584 401571053568 423054278656 423993802752 435035308032 446676598784 463856467968 475936063488 502511173632 515597402112 521838526464 535428071424 565325070336 580047077376 634581417984 652552962048 670014898176 687463202816 695784701952 713904095232 753766760448 773396103168 803142107136 846108557312 847987605504 870070616064 927712935936 951872126976 1005022347264 1031194804224 1043677052928 1070856142848 1130650140672 1160094154752 1269162835968 1305105924096 1340029796352 1374926405632 1391569403904 1427808190464 1507533520896 1546792206336 1606284214272 1692217114624 1695975211008 1740141232128 1903744253952 2010044694528 2062389608448 2087354105856 2141712285696 2261300281344 2320188309504 2538325671936 2610211848192 2749852811264 2783138807808 2855616380928 3015067041792 3093584412672 3212568428544 3384434229248 3391950422016 3480282464256 3807488507904 4020089389056 4124779216896 4174708211712 4283424571392 4522600562688 4640376619008 5076651343872 5220423696384 5499705622528 5711232761856 6030134083584 6187168825344 6425136857088 6768868458496 6783900844032 6960564928512 7614977015808 8249558433792 8349416423424 8566849142784 9045201125376 9280753238016 10153302687744 10440847392768 10999411245056 11422465523712 12060268167168 12374337650688 12850273714176 13567801688064 13921129857024 15229954031616 16499116867584 17133698285568 18090402250752 18561506476032 20306605375488 20881694785536 21998822490112 22844931047424 24748675301376 25700547428352 27135603376128 27842259714048 30459908063232 32998233735168 34267396571136 36180804501504 37123012952064 41763389571072 43997644980224 45689862094848 49497350602752 51401094856704 54271206752256 55684519428096 60919816126464 65996467470336 68534793142272 74246025904128 83526779142144 87995289960448 91379724189696 98994701205504 102802189713408 108542413504512 111369038856192 131992934940672 137069586284544 148492051808256 167053558284288 182759448379392 197989402411008 205604379426816 222738077712384 263985869881344 274139172569088 296984103616512 334107116568576 395978804822016 411208758853632 445476155424768 548278345138176 593968207233024 668214233137152 791957609644032 822417517707264 890952310849536 1187936414466048 1336428466274304 1644835035414528 1781904621699072 2375872828932096 2672856932548608 3563809243398144 5345713865097216 7127618486796288 10691427730194432 21382855460388864
• Sum of all divisors σ(n): 69338501781428880
• Sum of proper divisors (its aliquot sum) s(n): 47955646321040016
• 21382855460388864 is an abundant number, because the sum of its proper divisors (47955646321040016) is greater than itself. Its abundance is 26572790860651152

Bases of 21382855460388864

• Binary: 1001011111101111001100000000000000000000000000000000000₂
• Hexadecimal: 0x4BF79800000000
• Base-36: 5UJL86S5C00

Squares and roots of 21382855460388864

• 21382855460388864 squared (21382855460388864²) is 457226507639881857011346095210496
• 21382855460388864 cubed (21382855460388864³) is 9776808325521978408616876152366294330876094316544
• The square root of 21382855460388864 is 146228777.8119917953
• The cube root of 21382855460388864 is 277558.9484287115

Scales and comparisons

• 21,382,855,460,388,864 seconds is equal to 679,908,662 years, 6 weeks, 3 days, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,382,855,460,388,864 would take you about two billion, thirty-nine million, seven hundred twenty-five thousand, nine hundred eighty-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 21382855460388864 cubic inches would be around 23129.9 feet tall.

Recreational maths with 21382855460388864

• 21382855460388864 backwards is 46888306455828312
• 21382855460388864 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21382855460388864's digits is 81
• More coming soon!