18398739240640

Names of 18398739240640

• Cardinal: 18398739240640 can be written as Eighteen trillion, three hundred ninety-eight billion, seven hundred thirty-nine million, two hundred forty thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.839873924064 × 10¹³

Factors of 18398739240640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 252

Divisors of 18398739240640

• Number of divisors d(n): 1008
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 29 31 32 37 40 44 55 58 62 64 74 80 88 110 116 124 137 145 148 155 160 176 185 220 232 248 274 290 296 310 319 320 341 352 370 407 440 464 496 548 580 592 620 638 682 685 704 740 814 880 899 928 961 992 1073 1096 1147 1160 1184 1240 1276 1364 1369 1370 1480 1507 1595 1628 1705 1760 1798 1856 1922 1984 2035 2146 2192 2294 2320 2368 2480 2552 2728 2738 2740 2960 3014 3190 3256 3410 3520 3596 3844 3973 4070 4247 4292 4384 4495 4588 4640 4805 4960 5069 5104 5365 5456 5476 5480 5735 5920 6028 6380 6512 6820 6845 7192 7535 7688 7946 8140 8494 8584 8768 8990 9176 9280 9610 9889 9920 10138 10208 10571 10730 10912 10952 10960 11470 11803 11840 12056 12617 12760 13024 13640 13690 14384 15059 15070 15376 15892 16280 16988 17168 17980 18352 19220 19778 19865 20276 20416 21142 21235 21460 21824 21904 21920 22940 23606 24112 25234 25345 25520 26048 27280 27380 27869 28768 30118 30140 30752 31784 32560 33263 33976 34336 35557 35960 36704 38440 39556 39701 39730 40552 42284 42439 42470 42920 43703 43808 43840 45880 46717 47212 48224 49445 50468 50690 51040 52855 54560 54760 55738 55759 57536 59015 60236 60280 61504 63085 63568 65120 66526 67952 68672 71114 71920 73408 75295 76880 79112 79402 79460 81104 84568 84878 84940 85840 87406 87616 91760 93434 94424 96448 98890 100936 101380 102080 105710 109120 109520 111476 111518 118030 120472 120560 123163 126170 127136 130240 131657 133052 135904 139345 142228 143840 147001 150590 153760 157139 158224 158804 158920 162208 166315 169136 169756 169880 171680 174812 177785 183520 186868 187553 188848 197780 198505 201872 202760 211420 212195 218515 219040 222952 223036 233585 236060 240944 241120 246326 252340 254272 263314 266104 271808 278690 278795 284456 287680 294002 301180 306559 307520 314278 316448 317608 317840 324416 332630 338272 339512 339760 343360 349624 355570 365893 367040 373736 375106 377696 391127 395560 397010 403744 405520 422840 424390 436711 437030 438080 445904 446072 466829 467170 472120 481888 482240 492652 504680 526628 532208 557380 557590 568912 588004 602360 613118 615815 628556 632896 635216 635680 658285 665260 676544 679024 679520 699248 711140 731786 735005 747472 750212 755392 782254 785695 791120 794020 807488 811040 845680 848780 873422 874060 891808 892144 933658 934340 937765 944240 963776 985304 1009360 1031153 1053256 1064416 1114760 1115180 1137824 1176008 1204720 1226236 1230731 1231630 1257112 1270432 1271360 1315609 1316570 1330520 1354793 1358048 1359040 1398496 1422280 1448227 1463572 1470010 1494944 1500424 1532795 1564508 1571390 1582240 1588040 1617011 1622080 1691360 1697560 1728529 1746844 1748120 1783616 1784288 1829465 1867316 1868680 1875530 1888480 1955635 1970608 2018720 2062306 2063083 2106512 2128832 2183555 2229520 2230360 2275648 2334145 2352016 2409440 2452472 2461462 2463260 2514224 2540864 2631218 2633140 2661040 2709586 2716096 2796992 2844560 2896454 2927144 2940020 2989888 3000848 3065590 3129016 3142780 3164480 3176080 3234022 3382720 3395120 3457058 3493688 3496240 3568576 3658930 3734632 3737360 3751060 3776960 3818053 3911270 3941216 4037440 4124612 4126166 4213024 4367110 4459040 4460720 4557031 4668290 4704032 4818880 4871309 4904944 4922924 4926520 5028448 5155765 5262436 5266280 5322080 5419172 5439037 5689120 5792908 5814143 5854288 5880040 6001696 6131180 6153655 6258032 6285560 6352160 6468044 6578045 6773965 6790240 6914116 6987376 6992480 7241135 7317860 7469264 7474720 7502120 7636106 7822540 7882432 8085055 8249224 8252332 8426048 8642645 8734220 8918080 8921440 9114062 9336580 9408064 9742618 9809888 9845848 9853040 10056896 10311530 10315415 10524872 10532560 10644160 10838344 10878074 11342683 11378240 11585816 11628286 11708576 11760080 12003392 12262360 12307310 12516064 12571120 12704320 12936088 13156090 13538041 13547930 13580480 13828232 13974752 13984960 14471699 14482270 14635720 14938528 14949440 15004240 15272212 15645080 16170110 16498448 16504664 17285290 17468440 17842880 18228124 18673160 19090265 19485236 19619776 19691696 19706080 20623060 20630830 21049744 21065120 21676688 21756148 22685366 22785155 23171632 23256572 23417152 23520160 24356545 24524720 24614620 25032128 25142240 25872176 26312180 27076082 27095860 27195185 27656464 27949504 28943398 28964540 29070715 29271440 29877056 30008480 30544424 31290160 32340220 32996896 33009328 34570580 34936880 36456248 37346320 38152661 38180530 38970472 39383392 39412160 41246120 41261660 41998583 42099488 42130240 43353376 43512296 45370732 45570310 46343264 46513144 47040320 48713090 49049440 49229240 50127341 50284480 51744352 52624360 53584399 54152164 54191720 54390370 55312928 56713415 57886796 57929080 58141430 58542880 59829407 60016960 61088848 62580320 63955573 64680440 65993792 66018656 67690205 69141160 69873760 72358495 72912496 74692640 76305322 76361060 77940944 78766784 82492240 82523320 83997166 84198976 86706752 87024592 90741464 91140620 92686528 93026288 97426180 98098880 98458480 100254682 103488704 105248720 107168798 108304328 108383440 108780740 110625856 113426830 115773592 115858160 116282860 117085760 119658814 122177696 125160640 127911146 129360880 132037312 135380410 138282320 139747520 141267961 144716990 145824992 149385280 152610644 152722120 155881888 164984480 165046640 167994332 168610147 174049184 180238433 181482928 182281240 186052576 190763305 194852360 196916960 200509364 209992915 210497440 214337596 216608656 216766880 217561480 226853660 231547184 231716320 232565720 239317628 244355392 250636705 255822292 258721760 267921995 270760820 276564640 282535922 289433980 291649984 299147035 305221288 305444240 311763776 319777865 329968960 330093280 335988664 337220294 348098368 360476866 362965856 364562480 372105152 381526610 389704720 393833920 401018728 419679271 419985830 420994880 428675192 433217312 433533760 435122960 453707320 463094368 463432640 465131440 478635256 501273410 511644584 517443520 535843990 541521640 553129280 565071844 578867960 598294070 610442576 610888480 639555730 660186560 671977328 674440588 706339805 720953732 725931712 729124960 763053220 779409440 802037456 839358542 839971660 843050735 857350384 866434624 870245920 901192165 907414640 926188736 930262880 957270512 1002546820 1023289168 1071687980 1083043280 1130143688 1157735920 1196588140 1220885152 1221776960 1279111460 1343954656 1348881176 1412679610 1441907464 1458249920 1526106440 1553947571 1558818880 1604074912 1678717084 1679943320 1686101470 1714700768 1740491840 1802384330 1814829280 1854711617 1860525760 1914541024 1982622763 2005093640 2046578336 2098396355 2143375960 2166086560 2260287376 2315471840 2393176280 2441770304 2558222920 2687909312 2697762352 2825359220 2883814928 3052212880 3107895142 3208149824 3357434168 3359886640 3372202940 3429401536 3604768660 3629658560 3709423234 3829082048 3965245526 4010187280 4093156672 4196792710 4286751920 4332173120 4520574752 4630943680 4786352560 5116445840 5226914557 5395524704 5650718440 5767629856 6104425760 6215790284 6714868336 6719773280 6744405880 7209537320 7418846468 7769737855 7930491052 8020374560 8393585420 8573503840 9041149504 9273558085 9572705120 9913113815 10232891680 10453829114 10791049408 11301436880 11535259712 12208851520 12431580568 13429736672 13439546560 13488811760 14419074640 14837692936 15539475710 15860982104 16040749120 16787170840 17147007680 18547116170 19145410240 19826227630 20465783360 20907658228 22602873760 24863161136 26134572785 26859473344 26977623520 28838149280 29675385872 31078951420 31721964208 33574341680 37094232340 39652455260 41815316456 45205747520 49726322272 52269145570 53955247040 57496060127 57676298560 59350771744 62157902840 63443928416 67148683360 74188464680 79304910520 83630632912 99452644544 104538291140 114992120254 118701543488 124315805680 126887856832 134297366720 148376929360 158609821040 167261265824 209076582280 229984240508 248631611360 287480300635 296753858720 317219642080 334522531648 418153164560 459968481016 497263222720 574960601270 593507717440 634439284160 836306329120 919936962032 1149921202540 1672612658240 1839873924064 2299842405080 3679747848128 4599684810160 9199369620320 18398739240640
• Sum of all divisors σ(n): 52890771800160
• Sum of proper divisors (its aliquot sum) s(n): 34492032559520
• 18398739240640 is an abundant number, because the sum of its proper divisors (34492032559520) is greater than itself. Its abundance is 16093293318880

Bases of 18398739240640

• Binary: 100001011101111001010010100010001011011000000₂
• Hexadecimal: 0x10BBCA5116C0
• Base-36: 6IS9IAW1S

Squares and roots of 18398739240640

• 18398739240640 squared (18398739240640²) is 338513605645066163827609600
• 18398739240640 cubed (18398739240640³) is 6228223559672413048424151687770374144000
• The square root of 18398739240640 is 4289375.1573673291
• The cube root of 18398739240640 is 26399.5194474817

Scales and comparisons

• 18,398,739,240,640 seconds is equal to 585,022 years, 51 weeks, 5 days, 20 hours, 10 minutes, 40 seconds.
• To count from 1 to 18,398,739,240,640 would take you about one million, four hundred sixty-two thousand, five 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 18398739240640 cubic inches would be around 2200 feet tall.

Recreational maths with 18398739240640

• 18398739240640 backwards is 04604293789381
• 18398739240640 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18398739240640's digits is 64
• More coming soon!