193359865213268671320
193,359,865,213,268,671,320 is an even composite number composed of seven prime numbers multiplied together.
What does the number 193359865213268671320 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 1728 divisors.
193359865213268671320 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one thousand, seven hundred twenty-eight divisors.
Prime factorization of 193359865213268671320:
23 × 33 × 5 × 132 × 612 × 1061 × 163812
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 13 × 13 × 61 × 61 × 1061 × 16381 × 16381)See below for interesting mathematical facts about the number 193359865213268671320 from the Numbermatics database.
Names of 193359865213268671320
- Cardinal: 193359865213268671320 can be written as One hundred ninety-three quintillion, three hundred fifty-nine quadrillion, eight hundred sixty-five trillion, two hundred thirteen billion, two hundred sixty-eight million, six hundred seventy-one thousand, three hundred twenty.
Scientific notation
- Scientific notation: 1.9335986521326867132 × 1020
Factors of 193359865213268671320
Divisors of 193359865213268671320
- Number of divisors d(n): 1728
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 61 65 72 78 90 104 108 117 120 122 130 135 156 169 180 183 195 216 234 244 260 270 305 312 338 351 360 366 390 468 488 507 520 540 549 585 610 676 702 732 780 793 845 915 936 1014 1061 1080 1098 1170 1220 1352 1404 1464 1521 1560 1586 1647 1690 1755 1830 2028 2122 2196 2340 2379 2440 2535 2745 2808 3042 3172 3183 3294 3380 3510 3660 3721 3965 4056 4244 4392 4563 4680 4758 5070 5305 5490 6084 6344 6366 6588 6760 7020 7137 7320 7442 7605 7930 8235 8488 9126 9516 9549 10140 10309 10610 10980 11163 11895 12168 12732 13176 13793 14040 14274 14884 15210 15860 15915 16381 16470 18252 18605 19032 19098 20280 20618 21220 21411 21960 22326 22815 23790 25464 27586 28548 28647 29768 30420 30927 31720 31830 32762 32940 33489 35685 36504 37210 38196 41236 41379 42440 42822 44652 45630 47580 47745 48373 49143 51545 55172 55815 57096 57294 60840 61854 63660 64721 65524 65880 66978 68965 71370 74420 76392 81905 82472 82758 85644 89304 91260 92781 95160 95490 96746 98286 100467 103090 107055 110344 111630 114588 123708 124137 127320 129442 131048 133956 137930 142740 143235 145119 147429 148840 154635 163810 165516 167445 171288 179309 182520 185562 190980 193492 194163 196572 200934 206180 206895 212953 214110 223260 229176 241865 245715 247416 248274 258884 267912 275860 278343 285480 286470 290238 294858 309270 323605 327620 331032 334890 358618 371124 372411 381960 386984 388326 393144 401868 412360 413790 425906 428220 435357 442287 446520 463905 483730 491430 496548 502335 517768 537927 551720 556686 572940 580476 582489 589716 618540 620685 628849 638859 647210 655240 669780 717236 725595 737145 742248 744822 776652 803736 827580 841373 851812 856440 870714 884574 896545 927810 967460 970815 982860 993096 999241 1004670 1064765 1075854 1113372 1145880 1160952 1164978 1179432 1237080 1241370 1257698 1277718 1294420 1306071 1339560 1391715 1434472 1451190 1474290 1489644 1553304 1613781 1655160 1682746 1703624 1741428 1747467 1769148 1793090 1855620 1862055 1886547 1916577 1934920 1941630 1965720 1998482 2009340 2129530 2151708 2176785 2211435 2226744 2329956 2482740 2515396 2524119 2555436 2588840 2612142 2689635 2768389 2783430 2902380 2912445 2948580 2979288 2997723 3144245 3194295 3227562 3365492 3482856 3494934 3538296 3586180 3711240 3724110 3773094 3833154 3883260 3947981 3996964 4018680 4206865 4259060 4303416 4353570 4422870 4659912 4841343 4965480 4996205 5030792 5048238 5110872 5224284 5379270 5536778 5566860 5659641 5749731 5804760 5824890 5897160 5995446 6288490 6388590 6455124 6530355 6730984 6989868 7172360 7448220 7546188 7572357 7666308 7766520 7895962 7993928 8068905 8305167 8413730 8518120 8707140 8737335 8845740 8993169 9432735 9582885 9682686 9992410 10096476 10448568 10758540 10937849 11073556 11133720 11319282 11499462 11649780 11843943 11990892 12576980 12620595 12777180 12910248 12990133 13060710 13841945 13979736 14896440 14988615 15092376 15144714 15332616 15791924 16137810 16610334 16827460 16978923 17380241 17414280 17474670 17691480 17986338 18865470 19165770 19365372 19739905 19984820 20192952 21517080 21875698 22147112 22638564 22717071 22998924 23299560 23687886 23981784 24206715 24915501 25153960 25241190 25554360 25980266 26121420 26979507 27683890 28298205 28748655 29977230 30289428 31583848 32275620 32813547 33220668 33654920 33957846 34760482 34949340 35531829 35972676 37730940 37861785 38331540 38730744 38970399 39479810 39969640 41525835 43751396 44965845 45277128 45434142 45997848 47375772 48413430 49831002 50482380 51323753 51960532 52140723 52242840 53959014 54689245 55367780 56596410 57497310 59219715 59954460 60578856 60953701 64551240 64950665 65627094 66441336 67915692 69520964 69898680 71063658 71945352 74746503 75461880 75723570 76663080 77940798 78959620 83051670 84894615 86901205 87502792 89931690 90868284 94751544 96826860 98440641 99662004 100964760 102647506 103921064 104281446 106595487 107918028 109378490 110735560 113192820 113585355 114994620 116911197 118439430 119908920 121907402 124577505 129901330 131254188 134897535 135831384 139041928 142127316 149493006 151447140 153971259 155881596 156422169 157919240 164067735 166103340 168871729 169789230 173802410 177659145 179863380 181736568 182861103 193653720 194851995 196881282 199324008 205295012 208562892 213190974 215836056 218756980 225943133 226385640 227170710 229989240 233822394 236878860 243814804 249155010 256618765 259802660 260703615 262508376 268337161 269795070 284254632 295321923 298986012 302894280 304768505 307942518 311763192 312844338 328135470 332206680 337743458 339578460 347604820 350733591 355318290 359726760 365722206 373732515 389703990 393762564 410590024 417125784 426381948 437513960 451886266 454341420 461913777 467644788 469266507 473757720 487629608 492203205 498310020 506615187 513237530 519605320 521407230 532977435 536674322 539590140 548583309 584555985 590643846 597972024 609537010 615885036 625688676 656270940 667208789 675486916 677829399 679156920 695209640 701467182 710636580 731444412 747465030 769856295 779407980 782110845 787525128 792398113 805011483 844358645 852763896 903772532 908682840 914305515 923827554 935289576 938533014 984406410 996620040 1013230374 1026475060 1042814460 1060194701 1065954870 1073348644 1079180280 1097166618 1129715665 1169111970 1181287692 1219074020 1231770072 1251377352 1312541880 1334417578 1341685805 1350973832 1355658798 1385741331 1402934364 1421273160 1462888824 1476609615 1494930060 1519845561 1539712590 1558815960 1564221690 1584796226 1610022966 1645749927 1688717290 1753667955 1807545064 1828611030 1847655108 1877066028 1968812820 2001626367 2026460748 2033488197 2052950120 2085628920 2120389402 2131909740 2146697288 2194333236 2259431330 2309568885 2338223940 2346332535 2362575384 2377194339 2415034449 2438148040 2533075935 2668835156 2683371610 2711317596 2742916545 2771482662 2805868728 2937260729 2953219230 2989860120 3039691122 3079425180 3128443380 3169592452 3180584103 3220045932 3291499854 3336043945 3377434580 3389146995 3488383093 3507335910 3657222060 3695310216 3754132056 3937625640 3961990565 4003252734 4025057415 4052921496 4066976394 4240778804 4263819480 4388666472 4518862660 4559536683 4619137770 4676447880 4692665070 4754388678 4830068898 5066151870 5300973505 5337670312 5366743220 5422635192 5485833090 5542965324 5874521458 5906438460 6004879101 6079382244 6100464591 6158850360 6256886760 6339184904 6361168206 6440091864 6582999708 6672087890 6754869160 6778293990 6928706655 6976766186 7014671820 7131583017 7245103347 7314444120 7599227805 7923981130 8006505468 8050114830 8133952788 8228749635 8481557608 8811782187 9037725320 9119073366 9238275540 9385330140 9508777356 9541752309 9660137796 10008131835 10132303740 10167440985 10301175469 10465149279 10601947010 10733486440 10971666180 11085930648 11749042916 11812876920 11885971695 12009758202 12075172245 12158764488 12200929182 12722336412 13165999416 13344175780 13556587980 13782531113 13857413310 13953532372 14029343640 14263166034 14490206694 14686303645 15198455610 15847962260 15902920515 16013010936 16100229660 16267905576 16368566821 16457499270 17441915465 17623564374 18014637303 18238146732 18476551080 18770660280 19017554712 19083504618 19320275592 20016263670 20264607480 20334881970 20602350938 20930298558 21203894020 21394749051 21943332360 22797683415 23498085832 23771943390 24019516404 24150344490 24401858364 25444672824 26435346561 26688351560 27113175960 27565062226 27714826620 27907064744 28526332068 28625256927 28980413388 29372607290 30024395505 30396911220 30502322955 30903526407 31395447837 31695924520 31805841030 32200459320 32737133642 32914998540 34883830930 35247128748 35657915085 36029274606 36225516735 36476293464 38167009236 40032527340 40669763940 41204701876 41347593339 41860597116 42407788040 42789498102 44058910935 45348980209 45595366830 47543886780 47708761545 48039032808 48300688980 48803716728 49105700463 51505877345 52325746395 52870693122 55130124452 55429653240 57052664136 57250513854 57960826776 58745214580 60048791010 60793822440 61004645910 61807052814 62790895674 63611682060 64671876761 65474267284 65829997080 68912655565 69767661860 70494257496 71315830170 72058549212 72451033470 76334018472 79306039683 80065054680 81339527880 81842834105 82409403752 82695186678 83721194232 85578996204 88117821870 90073186515 90697960418 91190733660 92710579221 94186343511 95087773560 95417523090 96601377960 98211400926 103011754690 104651492790 105741386244 106973745255 110260248904 114501027708 117490429160 120097582020 122009291820 123614105628 124042780017 125581791348 127223364120 129343753522 130948534568 132176732805 136046940627 137825311130 139535323720 142631660340 143126284635 144117098424 144902066940 147317101389 154517632035 156977239185 158612079366 163685668210 165390373356 171157992408 176235643740 179172904469 180146373030 181395920836 182381467320 185421158442 188372687022 190835046180 194015630283 196422801852 206023509380 206737966695 209302985580 211482772488 212791368673 213947490510 226744901045 229002055416 240195164040 244018583640 245528502315 247228211256 248085560034 251163582696 258687507044 264353465610 272093881254 275650622260 278131737663 284705727821 285263320680 286252569270 289804133880 294634202778 309035264070 313954478370 317224158732 323359383805 327371336420 330780746712 352471287480 358345808938 360292746060 362791841672 370842316884 372128340051 376745374044 381670092360 388031260566 392845603704 396530198415 408140821881 412047018760 413475933390 418605971160 425582737346 427894981020 441951304167 453489802090 463552896105 470931717555 491057004630 496171120068 517375014088 528706931220 537518713407 544187762508 551301244520 556263475326 569411455642 572505138540 582046890849 589268405556 618070528140 620213900085 627908956740 634448317464 638374106019 646718767610 654742672840 680234703135 716691617876 720585492120 736585506945 741684633768 744256680102 753490748088 776062521132 793060396830 816281643762 826951866780 840734397893 851165474692 854117183463 855789962040 883902608334 895864522345 906979604180 927105792210 941863435110 970078151415 982114009260 992342240136 998482576081 1057413862440 1063956843365 1075037426814 1088375525016 1112526950652 1138822911284 1145010277080 1164093781698 1178536811112 1224422465643 1236141056280 1240427800170 1255817913480 1276748212038 1293437535220 1360469406270 1390658688315 1423528639105 1433383235752 1473171013890 1488513360204 1552125042264 1586120793660 1612556140221 1632563287524 1653903733560 1681468795786 1702330949384 1708234366926 1746140672547 1767805216668 1791729044690 1813959208360 1854211584420 1860641700255 1883726870220 1915122318057 1940156302830 1964228018520 1996965152162 2040704109405 2127913686730 2150074853628 2209756520835 2225053901304 2277645822568 2328187563396 2448844931286 2480855600340 2522203193679 2553496424076 2562351550389 2586875070440 2687593567035 2720938812540 2766287792749 2781317376630 2847057278210 2910234454245 2946342027780 2977026720408 2995447728243 3172241587320 3191870530095 3225112280442 3265126575048 3362937591572 3416468733852 3492281345094 3535610433336 3583458089380 3701174461673 3708423168840 3721283400510 3767453740440 3830244636114 3880312605660 3993930304324 4081408218810 4203671989465 4255827373460 4270585917315 4300149707256 4419513041670 4656375126792 4837668420663 4897689862572 4961711200680 4992412880405 5044406387358 5106992848152 5124703100778 5375187134070 5441877625080 5532575585498 5562634753260 5694114556420 5745366954171 5820468908490 5892684055560 5990895456486 6122112328215 6383741060190 6450224560884 6725875183144 6832937467704 6984562690188 7166916178760 7402348923346 7442566801020 7566609581037 7660489272228 7687054651167 7760625211320 7987860608648 8062780701105 8162816437620 8298863378247 8407343978930 8511654746920 8541171834630 8730703362735 8839026083340 8986343184729 9575611590285 9675336841326 9795379725144 9984825760810 10088812774716 10249406201556 10750374268140 10929547172609 11065151170996 11103523385019 11125269506520 11388229112840 11490733908342 11640937816980 11981790912972 12244224656430 12611015968395 12767482120380 12811757751945 12900449121768 12980273489053 13831438963745 13969125380376 14804697846692 14885133602040 14977238641215 15133219162074 15320978544456 15374109302334 16125561402210 16325632875240 16597726756494 16814687957860 17082343669260 17367049397081 17461406725470 17678052166680 17972686369458 18505872308365 19151223180570 19350673682652 19969651521620 20177625549432 20498812403112 21500748536280 21859094345218 22130302341992 22207046770038 22699828743111 22981467816684 23281875633960 23963581825944 24188342103315 24488449312860 24896590134741 25222031936790 25534964240760 25623515503890 25960546978106 26959029554187 27662877927490 28726834770855 29609395693384 29954477282430 30266438324148 30748218604668 32251122804420 32788641517827 33195453512988 33310570155057 33629375915720 34164687338520 34734098794162 34922813450940 35945372738916 37011744616730 37833047905185 38302446361140 38435273255835 38701347365304 38940820467159 39939303043240 41494316891235 43718188690436 44414093540076 44931715923645 45399657486222 45962935633368 48115268001749 48376684206630 48976898625720 49793180269482 50444063873580 51247031007780 51921093956212 52101148191243 53918059108374 54647735863045 55325755854980 55517616925095 57453669541710 59908954564860 60532876648296 61496437209336 64502245608840 64901367445265 65577283035654 66390907025976 66621140310114 69468197588324 69845626901880 71890745477832 74023489233460 74689770404223 75666095810370 76604892722280 76870546511670 77881640934318 82988633782470 86835246985405 87436377380872 88828187080152 89863431847290 90799314972444 96230536003498 96753368413260 98365924553481 99586360538964 99931710465171 100888127747160 102494062015560 103842187912424 104202296382486 107836118216748 109295471726090 110651511709960 111035233850190 113499143715555 114907339083420 116822461401477 119817909129720 124482950673705 129802734890530 131154566071308 133242280620228 134795147770935 138936395176648 144345804005247 148046978466920 149379540808446 151332191620740 153741093023340 155763281868636 156303444573729 163943207589135 165977267564940 166552850775285 168743555357689 173670493970810 179726863694580 181598629944888 192461072006996 193506736826520 194704102335795 196731849106962 199172721077928 199863420930342 208404592764972 215672236433496 218590943452180 222070467700380 225771642162053 226998287431110 229814678166840 233644922802954 240576340008745 248965901347410 259605469781060 260505740956215 262309132142616 266484561240456 269590295541870 288691608010494 295097773660443 298759081616892 302664383241480 307482186046680 311526563737272 312606889147458 327886415178270 331954535129880 333105701550570 337487110715378 347340987941620 350467384204431 359453727389160 373448852021115 384922144013992 389408204671590 393463698213924 399726841860684 416809185529944 433037412015741 437181886904360 444140935400760 451543284324106 453996574862220 467289845605908 468910333721187 481152680017490 491829622767405 497931802694820 499658552325855 506230666073067 519210939562120 521011481912430 539180591083740 577383216020988 584112307007385 590195547320886 597518163233784 625213778294916 655772830356540 666211403101140 674974221430756 677314926486159 694681975883240 700934768408862 721729020026235 746897704042230 778816409343180 781517222868645 786927396427848 799453683721368 843717776788445 866074824031482 903086568648212 907993149724440 934579691211816 937820667442374 962305360034980 983659245534810 995863605389640 999317104651710 1012461332146134 1042022963824860 1059390013221941 1078361182167480 1128858210810265 1154766432041976 1168224614014770 1180391094641772 1250427556589832 1299112236047223 1311545660713080 1332422806202280 1349948442861512 1354629852972318 1401869536817724 1443458040052470 1475488868302215 1493795408084460 1518691998219201 1557632818686360 1563034445737290 1687435553576890 1732149648062964 1752336921022155 1806173137296424 1875641334884748 1924610720069960 1967318491069620 1998634209303420 2024922664292268 2031944779458477 2084045927649720 2118780026443882 2165187060078705 2257716421620530 2336449228029540 2344551668605935 2360782189283544 2531153330365335 2598224472094446 2709259705944636 2803739073635448 2886916080104940 2935031348106689 2950977736604430 2987590816168920 3037383996438402 3126068891474580 3178170039665823 3374871107153780 3386574632430795 3464299296125928 3504673842044310 3751282669769496 3934636982139240 3997268418606840 4049845328584536 4063889558916954 4237560052887764 4330374120157410 4515432843241060 4556075994657603 4672898456059080 4689103337211870 5062306660730670 5196448944188892 5296950066109705 5418519411889272 5773832160209880 5870062696213378 5901955473208860 6074767992876804 6095834338375431 6252137782949160 6356340079331646 6495561180236115 6749742214307560 6773149264861590 7009347684088620 7593459991096005 8127779117833908 8475120105775528 8660748240314820 8805094044320067 9030865686482120 9112151989315206 9378206674423740 9534510118997469 10124613321461340 10159723897292385 10392897888377784 10593900132219410 11740125392426756 11803910946417720 12149535985753608 12191668676750862 12712680158663292 12991122360472230 13546298529723180 13772070171885233 14018695368177240 14675156740533445 15186919982192010 15890850198329115 16255558235667816 17321496480629640 17610188088640134 18224303978630412 18756413348847480 19069020237994938 20249226642922680 20319447794584770 21187800264438820 22780379973288015 23480250784853512 24383337353501724 25425360317326584 25982244720944460 26415282132960201 27092597059446360 27544140343770466 28603530356992407 29350313481066890 30373839964384020 30479171691877155 31781700396658230 35220376177280268 36448607957260824 38138040475989876 40638895589169540 41316210515655699 42375600528877640 44025470221600335 45560759946576030 47672550594987345 48766674707003448 51964489441888920 52830564265920402 55088280687540932 57207060713984814 58700626962133780 60747679928768040 60958343383754310 63563400793316460 68860350859426165 70440752354560536 76276080951979752 79245846398880603 81277791178339080 82632421031311398 88050940443200670 91121519893152060 95345101189974690 105661128531840804 110176561375081864 114414121427969628 117401253924267560 121916686767508620 123948631546967097 127126801586632920 132076410664801005 137720701718852330 143017651784962035 158491692797761206 165264842062622796 176101880886401340 179036912234508029 182243039786304120 190690202379949380 206581052578278495 211322257063681608 228828242855939256 243833373535017240 247897263093934194 264152821329602010 275441403437704660 286035303569924070 316983385595522412 330529684125245592 352203761772802680 358073824469016058 371845894640901291 381380404759898760 396229231994403015 413162105156556990 495794526187868388 528305642659204020 537110736703524087 550882806875409320 572070607139848140 619743157734835485 633966771191044824 716147648938032116 743691789281802582 792458463988806030 826324210313113980 895184561172540145 991589052375736776 1056611285318408040 1074221473407048174 1144141214279696280 1239486315469670970 1432295297876064232 1487383578563605164 1584916927977612060 1611332210110572261 1652648420626227960 1790369122345080290 1859229473204506455 2148442946814096348 2478972630939341940 2685553683517620435 2974767157127210328 3169833855955224120 3222664420221144522 3580738244690160580 3718458946409012910 4296885893628192696 4833996630331716783 4957945261878683880 5371107367035240870 6445328840442289044 7161476489380321160 7436917892818025820 8056661050552861305 9667993260663433566 10742214734070481740 12890657680884578088 14873835785636051640 16113322101105722610 19335986521326867132 21484429468140963480 24169983151658583915 32226644202211445220 38671973042653734264 48339966303317167830 64453288404422890440 96679932606634335660 193359865213268671320
- Sum of all divisors σ(n): 710267236911296906400
- Sum of proper divisors (its aliquot sum) s(n): 516907371698028235080
- 193359865213268671320 is an abundant number, because the sum of its proper divisors (516907371698028235080) is greater than itself. Its abundance is 323547506484759563760
Bases of 193359865213268671320
- Binary: 101001111011011010000011110011110010011011100100101000111011010110002
- Hexadecimal: 0xA7B683CF26E4A3B58
- Base-36: 14T22NOUA59K60
Squares and roots of 193359865213268671320
- 193359865213268671320 squared (1933598652132686713202) is 37388037475293428035812669766598190542400
- 193359865213268671320 cubed (1933598652132686713203) is 7229345886811375156010149715684813090067071389293838123968000
-
The
square root of 193359865213268671320 is 13905389790.0515061873 -
The
cube root of 193359865213268671320 is 5782586.1482265113
Scales and comparisons
How big is 193359865213268671320?- 193,359,865,213,268,671,320 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
-
To count from 1 to 193,359,865,213,268,671,320 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 193359865213268671320 cubic inches would be around 481882.2 feet tall.
Recreational maths with 193359865213268671320
- 193359865213268671320 backwards is 023176862312568953391
- 193359865213268671320 is a
Harshad number . - The number of decimal digits it has is: 21
- The sum of 193359865213268671320's digits is 90
- More coming soon!
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 193359865213268671320 - Facts about the integer". Numbermatics.com. 2024. Web. 20 June 2024.
APA style:
Numbermatics. (2024). Number 193359865213268671320 - Facts about the integer. Retrieved 20 June 2024, from https://numbermatics.com/n/193359865213268671320/
Chicago style:
Numbermatics. 2024. "Number 193359865213268671320 - Facts about the integer". https://numbermatics.com/n/193359865213268671320/
The information we have on file for 193359865213268671320 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
Keywords: Divisors of 193359865213268671320, math, Factors of 193359865213268671320, curriculum, school, college, exams, university, Prime factorization of 193359865213268671320, STEM, science, technology, engineering, physics, economics, calculator, one hundred ninety-three quintillion, three hundred fifty-nine quadrillion, eight hundred sixty-five trillion, two hundred thirteen billion, two hundred sixty-eight million, six hundred seventy-one thousand, three hundred twenty.