760466709541539218327382
760,466,709,541,539,218,327,382 is an even composite number composed of nine prime numbers multiplied together.
760466709541539218327382 is an even composite number. It is composed of nine distinct prime numbers multiplied together. It has a total of one thousand, five hundred thirty-six divisors.
Prime factorization of 760466709541539218327382:
2 × 33 × 72 × 13 × 67 × 79 × 211 × 151013 × 131083591
(2 × 3 × 3 × 3 × 7 × 7 × 13 × 67 × 79 × 211 × 151013 × 131083591)See below for interesting mathematical facts about the number 760466709541539218327382 from the Numbermatics database.
Names of 760466709541539218327382
- Cardinal: 760466709541539218327382 can be written as Seven hundred sixty sextillion, four hundred sixty-six quintillion, seven hundred nine quadrillion, five hundred forty-one trillion, five hundred thirty-nine billion, two hundred eighteen million, three hundred twenty-seven thousand, three hundred eighty-two.
Scientific notation
- Scientific notation: 7.60466709541539218327382 × 1023
Factors of 760466709541539218327382
Divisors of 760466709541539218327382
- Number of divisors d(n): 1536
-
Complete list of divisors:
1 2 3 6 7 9 13 14 18 21 26 27 39 42 49 54 63 67 78 79 91 98 117 126 134 147 158 182 189 201 211 234 237 273 294 351 378 402 422 441 469 474 546 553 603 633 637 702 711 819 871 882 938 1027 1106 1206 1266 1274 1323 1407 1422 1477 1638 1659 1742 1809 1899 1911 2054 2133 2457 2613 2646 2743 2814 2954 3081 3283 3318 3618 3798 3822 3871 4221 4266 4431 4914 4977 5226 5293 5486 5697 5733 6097 6162 6566 7189 7742 7839 8229 8442 8862 9243 9849 9954 10339 10586 11394 11466 11613 12194 12663 13293 14137 14378 14931 15678 15879 16458 16669 17199 18291 18486 19201 19698 20678 21567 23226 23517 24687 25326 26586 27729 28274 29547 29862 31017 31758 33338 34398 34839 36582 37051 38402 39879 42411 42679 43134 47034 47637 49374 50007 50323 54873 55458 57603 59094 62034 64701 68809 69678 74061 74102 79758 84822 85358 88641 93051 95274 98959 100014 100646 104517 109746 111153 115206 116683 127233 128037 129402 134407 137618 142911 148122 150021 150969 151013 164619 172809 177282 183781 186102 194103 197918 206427 209034 216697 222306 233366 254466 256074 259357 268814 279153 285822 296877 300042 301938 302026 329238 333459 345618 350049 367562 381699 384111 388206 403221 412854 433394 450063 452907 453039 481663 518427 518714 551343 558306 593754 619281 650091 666918 692713 700098 763398 768222 778071 806442 816781 890631 900126 905814 906078 963326 1000377 1036854 1050147 1057091 1102686 1116823 1152333 1209663 1238562 1286467 1300182 1358721 1359117 1385426 1444989 1516879 1556142 1633562 1654029 1781262 1857843 1950273 1963169 2000754 2078139 2100294 2114182 2233646 2304666 2334213 2419326 2450343 2572934 2671893 2717442 2718234 2889978 3033758 3150441 3171273 3308058 3350469 3371641 3628989 3715686 3859401 3900546 3926338 4077351 4156278 4334967 4550637 4668426 4900686 4962087 5343786 5850819 5889507 6234417 6300882 6342546 6700938 6743282 7002639 7257978 7351029 7399637 7718802 7817761 8154702 8669934 9005269 9101274 9513819 9924174 10051407 10114923 10117871 10618153 11578203 11701638 11779014 11930027 12468834 13004901 13651911 13742183 14005278 14518699 14702058 14799274 15635522 17668521 18010538 18703251 19027638 20102814 20229846 20235742 21236306 22053087 22198911 23156406 23453283 23860054 26009802 27015807 27303822 27484366 28541457 29037398 30154221 30344769 30353613 31854459 31863743 34734609 35337042 35790081 37406502 40955733 41226549 43556097 44106174 44397822 46906566 53005563 54031614 54724327 57082914 60308442 60689538 60707226 63708918 63727486 66596733 69469218 70359849 70825097 71580162 81047421 81911466 82453098 83510189 87112194 91034307 91060839 95563377 95591229 96195281 101630893 106011126 107370243 109448654 123679647 130668291 131083591 131532323 133193466 140719698 141650194 155090351 162094842 164172981 167020378 182068614 182121678 191126754 191182458 192390562 199790199 203261786 211079547 212475291 214740486 223046201 243142263 247359294 250530567 261336582 262167182 263064646 273182517 286690131 286773687 288585843 304892679 310180702 322110729 328345962 371038941 392004873 393250773 394596969 399580398 414228659 422159094 424950582 446092402 465271053 486284526 492518943 495775679 501061134 546365034 573380262 573547374 577171686 584571323 609785358 637425873 644221458 669138603 711416251 742077882 751591701 784009746 786501546 789193938 799311809 828457318 860321061 865757529 914678037 917585137 920726261 930542106 985037886 991551358 1085632457 1169142646 1179752319 1183790907 1242685977 1274851746 1338277206 1395813159 1422832502 1477556829 1487327037 1503183402 1561323407 1598623618 1704086683 1720642122 1731515058 1753713969 1829356074 1835170274 1841452522 1912277619 2007415809 2134248753 2134870781 2171264914 2254775103 2359504638 2367581814 2397935427 2485371954 2517235697 2597272587 2744034111 2752755411 2762178783 2791626318 2899600613 2955113658 2974654074 3122646814 3256897371 3408173366 3507427938 3539256957 3551372721 3728057931 3824555238 4014831618 4187439477 4268497506 4269741562 4461981111 4509550206 4683970221 4795870854 5034471394 5112260049 5194545174 5261141907 5488068222 5505510822 5524357566 5595182663 5799201226 6022247427 6402746259 6404612343 6423095959 6445083827 6513794742 7078513914 7102745442 7193806281 7456115862 7551707091 7599427199 8258266233 8286536349 8374878954 8698801839 8782600597 8923962222 9367940442 9770692113 10224520098 10355603689 10391053517 10522283814 11184173793 11190365326 11928606781 12044494854 12805492518 12809224686 12846191918 12890167654 13385943333 14051910663 14387612562 14944095467 15103414182 15198854398 15336780147 15783425721 16516532466 16573072698 16785547989 17397603678 17565201194 17620649879 19208238777 19213837029 19269287877 19335251481 19541384226 20297204291 20711207378 20782107034 21581418843 22368347586 22655121273 22798281597 23857213562 24774798699 24859609047 26096405517 26347801791 26771886666 27658637701 27753320153 28103821326 29312076339 29888190934 30673560294 31066811067 31173160551 31566851442 32724064061 33571095978 35241299758 35785820343 38416477554 38427674058 38538575754 38670502962 39166278641 40594408582 42155731989 43162837686 44832286401 45310242546 45596563194 46010340441 49549597398 49719218094 50356643967 52192811034 52695603582 52861949637 55317275402 55506640306 57641511087 57807863631 58005754443 58624152678 60891612873 61478204179 62133622134 62346321102 65448128122 67965363819 68394844791 71571640686 72489225823 72737374619 78289216551 78332557282 79043405373 82975913103 83259960459 83500247467 84311463978 89664572802 92020680882 93200433201 93519481653 98172192183 100713287934 104608668269 105723899274 107357461029 114173807761 115283022174 115615727262 116011508886 117498835923 121783225746 122956408358 123344549153 134496859203 134622847957 135930727638 136789689582 144978451646 145474749238 151069931901 156578433102 158086810746 158585848911 165951826206 166519920918 167000494934 168654791699 173423590893 174017263329 182674838619 184434612537 186400866402 187038963306 193610463907 194273241071 196344384366 205184534373 209217336538 214714922058 217467677469 218212123857 228347615522 229068448427 234997671846 237130216119 246689098306 248927739309 249779881377 250500742401 268993718406 269245695914 279601299603 280558444959 294516576549 302139863802 313826004807 317171697822 322072383087 337309583398 342521423283 346847181786 348034526658 352496507769 359562290113 365349677238 368869225074 370033647459 387220927814 388546482142 403490577609 403868543871 410369068746 430347429253 434935354938 436424247714 458136896854 474260432238 475757546733 497855478618 499559762754 501001484802 505964375097 507424580761 509161622333 548024515857 553303837611 559202599206 561116889918 580831391721 582819723213 589033153098 627652009614 644144766174 652403032407 654636371571 685042846566 687205345281 693825447163 704993015538 719124580226 740067294918 746783217927 749339644131 751502227203 799216654327 806981155218 807737087742 860694858506 883549729647 941478014421 942359935699 951515093466 1011928750194 1014849161522 1018323244666 1027564269849 1057489523307 1078686870339 1096049031714 1106607675222 1110100942377 1161662783442 1165639446426 1180583541893 1211605631613 1291042287759 1304806064814 1309272743142 1355273247349 1359912687497 1374410690562 1387650894326 1493566435854 1498679288262 1503004454406 1517893125291 1522273742283 1527484866999 1598433308654 1603479138989 1659911512833 1742494175163 1748459169639 1767099459294 1853128725967 1882956028842 1884719871398 1957209097221 1963909114713 2055128539698 2061616035843 2081476341489 2114979046614 2157373740678 2185032378379 2192512292087 2220201884754 2254506681609 2361167083786 2397649962981 2423211263226 2516936030791 2582084575518 2710546494698 2719825374994 2824434043263 2827079807097 3035786250582 3044547484566 3054969733998 3082692809547 3206958277978 3236060611017 3319823025666 3330302827131 3484988350326 3496918339278 3541750625679 3634816894839 3706257451934 3873126863277 3914418194442 3927818229426 4065819742047 4079738062491 4123232071686 4162952682978 4370064756758 4385024584174 4509013363218 4553679375873 4566821226849 4582454600997 4795299925962 4810437416967 4856778130141 5033872061582 5227482525489 5245377508917 5559386177901 5594516580289 5648868086526 5654159614194 6165385619094 6184848107529 6244429024467 6472121222034 6555097135137 6577536876261 6596519549893 6660605654262 7083501251358 7192949888943 7269633789678 7550808092373 7746253726554 8131639484094 8159476124982 8264084793251 8481239421291 9019730813119 9107358751746 9133642453698 9164909201994 9620874833934 9708181833051 9713556260282 10454965050978 10490755017834 10625251877037 11118772355802 11189033160578 11619380589831 12197459226141 12239214187473 12369696215058 12488858048934 12971901081769 13110194270274 13155073752522 13193039099786 13700463680547 13747363802991 14385899777886 14431312250901 14570334390423 15101616184746 15295226648653 15347586044609 16528169586502 16678158533703 16783549740867 16962478842582 17618552215537 18039461626238 18733287073401 19416363666102 19665291405411 19732610628783 19789558649679 19795326327683 21250503754074 21578849666829 22652424277119 23238761179662 24090673437571 24394918452282 24478428374946 24792254379753 25443718263873 25943802163538 27059192439357 27400927361094 27494727605982 28405420918927 28862624501802 29140668780846 30590453297306 30695172089218 31875755631111 33356317067406 33567099481734 33997446910987 35237104431074 36592377678423 36717642562419 37466574146802 38915703245307 39330582810822 39465221257566 39579117299358 39590652655366 43157699333658 43293936752703 43711003171269 45304848554238 45885679945959 46042758133827 48181346875142 49584508759506 50034475601109 50350649222601 50887436527746 52855656646611 54118384878714 56810841837854 58995874216233 59197831886349 59368675949037 59385978983049 63138115691833 63751511262222 67957272831357 67994893821974 72272020312713 73184755356846 73435285124838 74376763139259 77831406490614 81177577318071 85216262756781 86587873505406 87422006342538 90803307572383 91771359891918 92085516267654 100068951202218 100701298445202 101992340732961 105711313293222 107066586540571 107433102312263 116747109735921 117991748432466 118395663772698 118737351898074 118771957966098 126276231383666 131133009513807 135914545662714 137657039837877 138128274401481 138567284293781 144544040625426 146397169351393 148753526278518 151051947667803 158566969939833 162355154636142 168634714062997 170432525513562 178106027847111 178157936949147 181606615144766 189414347075499 198837946432489 203984681465922 214133173081142 214866204624526 216816060938139 223130289417777 233494219471842 243532731954213 255648788270343 257339242259879 262266019027614 272409922717149 275314079675754 276256548802962 277134568587562 292794338702786 302103895335606 305977022198883 317133939879666 321199759621713 322299306936789 337269428125994 350241329207763 356212055694222 356315873898294 378828694150998 397675892864978 412971119513631 414384823204443 415701852881343 433632121876278 439191508054179 441966809842831 446260578835554 475700909819499 487065463908426 505904142188991 511297576540686 514678484519758 534473810847441 544819845434298 568243041226497 596513839297467 611954044397766 642399519243426 644598613873578 650448182814417 700482658415526 766946364811029 772017726779637 817229768151447 825942239027262 828769646408886 831403705762686 878383016108358 883933619685662 917931066596649 951401819638998 963599278865139 966897920810367 969970990056467 1011808284377982 1024780185459751 1068947621694882 1136486082452994 1180442998440979 1193027678594934 1247105558644029 1300896365628834 1317574524162537 1325900429528493 1326286863954761 1391865625027423 1517712426566973 1533892729622058 1544035453559274 1563830779886957 1634459536302894 1704729123679491 1789541517892401 1801374695819153 1835862133193298 1903163201568109 1927198557730278 1933795841620734 1939941980112934 2049560370919502 2316053180338911 2360885996881958 2451689304454341 2494211117288058 2635149048325074 2651800859056986 2652573727909522 2783731250054846 2890797836595417 2900693762431101 2909912970169401 3035424853133946 3074340556379253 3127661559773914 3409458247358982 3541328995322937 3579083035784802 3602749391638306 3741316675932087 3806326403136218 3952723572487611 3977701288585479 3978860591864283 4175596875082269 4176813855141113 4553137279700919 4632106360677822 4691492339660871 4903378608908682 5368624553677203 5404124087457459 5709489604704327 5781595673190834 5801387524862202 5819825940338802 6148681112758506 6948159541016733 7082657990645874 7173461298218257 7482633351864174 7905447144975222 7955402577170958 7957721183728566 8351193750164538 8353627710282226 8729738910508203 9106274559401838 9223021669137759 9284008047683327 9382984679321742 10623986985968811 10737249107354406 10808248174914918 10946815459208699 11418979209408654 11933103865756437 11936581775592849 12526790625246807 12530441565423339 12609622870734071 13322142410976763 13896319082033466 14074477018982613 14346922596436514 16212372262372377 17128468814112981 17241729231411893 17459477821016406 18446043338275518 18568016095366654 20329800138530441 21247973971937622 21520383894654771 21893630918417398 23866207731512874 23873163551185698 25053581250493614 25060883130846678 25219245741468142 26189216731524609 26644284821953526 27669065007413277 27852024143049981 28148954037965226 29237696985987791 31871960957906433 32424744524744754 32840446377626097 34256937628225962 34483458462823786 35809745326778547 37580371875740421 37591324696270017 37828868612202213 39966427232930289 40659600277060882 42223431056947839 43040767789309542 48637116787117131 51385406442338943 51725187694235679 52378433463049218 54298580116834469 55338130014826554 55704048286099962 58475393971975582 60989400415591323 63743921915812866 64561151683964313 64988056333783289 65680892755252194 71619490653557094 75160743751480842 75182649392540034 75657737224404426 76627708214460893 79932854465860578 83556072429149943 84446862113895678 87713090957963373 93254996876837341 97274233574234262 98521339132878291 102770812884677886 103450375388471358 104776662252426119 108597160233668938 112773974088810051 113486605836606639 119899281698790867 120692104619883251 121978800831182646 129122303367928626 129976112667566578 142308600969713087 153255416428921786 155175563082707037 162895740350503407 167112144858299886 175426181915926746 182968201246773969 186509993753674682 193683455051892939 194964169001349867 197042678265756582 204663878901914537 209553324504852238 225547948177620102 226973211673213278 229883124643382679 239798563397581734 241384209239766502 250668217287449829 263139272873890119 279764990630512023 279846528294454571 284617201939426174 295564017398634873 310351126165414074 314329986757278357 325791480701006814 329968294556147927 340459817509819917 359697845096372601 362076313859649753 365936402493547938 380090060817841283 387366910103785878 389928338002699734 409327757803829074 426925802909139261 459766249286765358 465526689248121111 488687221051510221 501336434574899658 526278545747780238 548904603740321907 559529981261024046 559693056588909142 584892507004049601 591128034797269746 613991636705743611 628659973514556714 659936589112295854 680919635019639834 689649373930148037 719395690192745202 724152627719299506 733436635766982833 760180121635682566 789417818621670357 839294971891536069 839539584883363713 844844732339182757 853851605818278522 931053378496242222 942989960271835071 977374442103020442 989904883668443781 996160206787991609 1086228941578949259 1097809207480643814 1140270182453523849 1169785014008099202 1227983273411487222 1280777408727417783 1362096609281539547 1379298747860296074 1466061663154530663 1466873271533965666 1578835637243340714 1678589943783072138 1679079169766727426 1689689464678365514 1754677521012148803 1841974910117230833 1885979920543670142 1958925698061181997 1979809767336887562 1992320413575983218 2068948121790444111 2172457883157898518 2200309907300948499 2280540364907047698 2309778061893035489 2517884915674608207 2518618754650091139 2534534197017548271 2561554817454835566 2660630425724888981 2724193218563079094 2828969880815505213 2932123326309061326 2969714651005331343 2988480620363974827 3258686824736847777 3420810547360571547 3509355042024297606 3638004867827909423 3683949820234461666 3842332226182253349 3917851396122363994 4086289827844618641 4137896243580888222 4289587829229923051 4400619814601896998 4619556123786070978 5035769831349216414 5037237509300182278 5069068394035096542 5134056450368879831 5321260851449777962 5525924730351692499 5657939761631010426 5876777094183545991 5939429302010662686 5976961240727949654 6517373649473695554 6600929721902845497 6841621094721143094 6929334185679106467 7276009735655818846 7555856263950273417 7603602591052644813 7684664452364506698 7981891277174666943 8172579655689237282 8579175658459846102 8909143953015994029 8965441861091924481 9534676264970776829 10262431642081714641 10268112900737759662 10914014603483728269 11051849460703384998 11753554188367091982 12258869483533855923 12868763487689769153 13201859443805690994 13712479886428273979 13858668371358212934 15111712527900546834 15207205182105289626 15402169351106639493 15963782554349333886 16168446433251248423 17630331282550637973 17818287906031988058 17930883722183848962 19069352529941553658 19802789165708536491 20524863284163429282 20788002557037319401 21828029206967456538 22107875735261911109 22810807773157934439 23945673831524000829 24517738967067711846 25466034074795365961 25737526975379538306 26896325583275773443 27424959772856547958 28604028794912330487 30027114804609461357 30804338702213278986 32336892866502496846 32742043810451184807 35260662565101275946 36776608450601567769 38606290463069307459 39605578331417072982 41137439659284821937 41576005114074638802 44215751470523822218 45621615546315868878 46206508053319918479 47891347663048001658 48505339299753745269 50932068149590731922 52890993847651913919 53792651166551546886 57208057589824660974 60054229609218922714 62364007671111958203 65484087620902369614 66323627205785733327 66742733854795437803 71837021494572002487 73553216901203135538 76398102224386097883 77212580926138614918 82274879318569643874 85812086384736991461 90081344413828384071 92413016106639836958 97010678599507490538 98226131431353554421 105781987695303827838 115818871389207922377 123412318977854465811 124728015342223916406 132647254411571466654 133485467709590875606 138619524159959755437 143674042989144004974 145516017899261235807 152796204448772195766 154755130146833377763 171624172769473982922 178262238523567561727 180162688827656768142 196452262862707108842 198970881617357199981 200228201564386313409 210189803632266229499 229194306673158293649 231637742778415844754 246824637955708931622 257436259154210974383 270244033241485152213 277239048319919510874 287402384558404844417 291032035798522471614 309510260293666755526 356524477047135123454 370236956933563397433 397941763234714399962 400456403128772626818 420379607264532458998 436548053697783707421 458388613346316587298 464265390440500133289 514872518308421948766 534786715570702685181 540488066482970304426 574804769116809688834 596912644852071599943 600684604693158940227 630569410896798688497 687582920019474880947 740473913867126794866 810732099724455456639 862207153675214533251 873096107395567414842 928530780881000266578 1069573431141405370362 1083285911027833644341 1193825289704143199886 1201369209386317880454 1261138821793597376994 1375165840038949761894 1392796171321500399867 1604360146712108055543 1621464199448910913278 1724414307350429066502 1802053814079476820681 1891708232690396065491 2011816691908833910919 2166571822055667288682 2586621461025643599753 2785592342643000799734 3208720293424216111086 3249857733083500933023 3604107628158953641362 3783416465380792130982 4023633383817667821838 4178388513964501199601 4813080440136324166629 5173242922051287199506 5675124698071188196473 6035450075726501732757 6499715466167001866046 7759864383076930799259 8356777027929002399202 9626160880272648333258 9749573199250502799069 11350249396142376392946 12070900151453003465514 14082716843361837376433 15519728766153861598518 18106350227179505198271 19499146398501005598138 28165433686723674752866 29248719597751508397207 36212700454359010396542 42248150530085512129299 54319050681538515594813 58497439195503016794414 84496301060171024258598 108638101363077031189626 126744451590256536387897 253488903180513072775794 380233354770769609163691 760466709541539218327382
- Sum of all divisors σ(n): 2186172579282423924326400
- Sum of proper divisors (its aliquot sum) s(n): 1425705869740884705999018
- 760466709541539218327382 is an abundant number, because the sum of its proper divisors (1425705869740884705999018) is greater than itself. Its abundance is 665239160199345487671636
Bases of 760466709541539218327382
- Binary: 101000010000100011111011101000010100001010111000111001011000011000000111010101102
- Hexadecimal: 0xA108FBA142B8E5860756
- Base-36: 3FU2TJK9GHJJB0PI
Squares and roots of 760466709541539218327382
- 760466709541539218327382 squared (7604667095415392183273822) is 578309616320935775604978073238307908641730973924
- 760466709541539218327382 cubed (7604667095415392183273823) is 439785211019812054648327915132420886791178737865311249648128521137186968
-
The
square root of 760466709541539218327382 is 872047423906.2570720457 -
The
cube root of 760466709541539218327382 is 91276729.1501324271
Scales and comparisons
How big is 760466709541539218327382?- 760,466,709,541,539,218,327,382 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
-
To count from 1 to 760,466,709,541,539,218,327,382 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 760466709541539218327382 cubic inches would be around 7606394.1 feet tall.
Recreational maths with 760466709541539218327382
- 760466709541539218327382 backwards is 283723812935145907664067
- The number of decimal digits it has is: 24
- The sum of 760466709541539218327382's digits is 108
- 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 760466709541539218327382 - Facts about the integer". Numbermatics.com. 2024. Web. 15 June 2024.
APA style:
Numbermatics. (2024). Number 760466709541539218327382 - Facts about the integer. Retrieved 15 June 2024, from https://numbermatics.com/n/760466709541539218327382/
Chicago style:
Numbermatics. 2024. "Number 760466709541539218327382 - Facts about the integer". https://numbermatics.com/n/760466709541539218327382/
The information we have on file for 760466709541539218327382 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 760466709541539218327382, math, Factors of 760466709541539218327382, curriculum, school, college, exams, university, Prime factorization of 760466709541539218327382, STEM, science, technology, engineering, physics, economics, calculator, seven hundred sixty sextillion, four hundred sixty-six quintillion, seven hundred nine quadrillion, five hundred forty-one trillion, five hundred thirty-nine billion, two hundred eighteen million, three hundred twenty-seven thousand, three hundred eighty-two.