214034107313446875
214,034,107,313,446,875 is an odd composite number composed of six prime numbers multiplied together.
What does the number 214034107313446875 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 1944 divisors.
214034107313446875 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one thousand, nine hundred forty-four divisors.
Prime factorization of 214034107313446875:
32 × 55 × 72 × 132 × 292 × 1033
(3 × 3 × 5 × 5 × 5 × 5 × 5 × 7 × 7 × 13 × 13 × 29 × 29 × 103 × 103 × 103)See below for interesting mathematical facts about the number 214034107313446875 from the Numbermatics database.
Names of 214034107313446875
- Cardinal: 214034107313446875 can be written as Two hundred fourteen quadrillion, thirty-four trillion, one hundred seven billion, three hundred thirteen million, four hundred forty-six thousand, eight hundred seventy-five.
Scientific notation
- Scientific notation: 2.14034107313446875 × 1017
Factors of 214034107313446875
Divisors of 214034107313446875
- Number of divisors d(n): 1944
-
Complete list of divisors:
1 3 5 7 9 13 15 21 25 29 35 39 45 49 63 65 75 87 91 103 105 117 125 145 147 169 175 195 203 225 245 261 273 309 315 325 375 377 435 441 455 507 515 525 585 609 625 637 721 725 735 819 841 845 875 927 975 1015 1125 1131 1183 1225 1305 1339 1365 1421 1521 1545 1575 1625 1827 1875 1885 1911 2163 2175 2205 2275 2523 2535 2575 2625 2639 2925 2987 3045 3125 3185 3393 3549 3605 3625 3675 4017 4095 4205 4225 4263 4375 4635 4875 4901 5047 5075 5625 5655 5733 5887 5915 6125 6489 6525 6695 6825 7105 7569 7605 7725 7875 7917 8125 8281 8961 9135 9373 9375 9425 9555 10609 10647 10815 10875 10933 11025 11375 12051 12615 12675 12789 12875 13125 13195 14625 14703 14935 15141 15225 15925 16965 17407 17661 17745 18025 18125 18375 18473 20085 20475 20909 21025 21125 21315 21875 23175 23751 24375 24505 24843 25235 25375 26883 28119 28125 28275 28665 29435 29575 30625 31827 32445 32625 32799 33475 34125 34307 35525 37845 38025 38625 38831 39375 39585 40625 41209 41405 44109 44805 45423 45675 46865 47125 47775 52221 52983 53045 53235 54075 54375 54665 55125 55419 56875 60255 62727 63075 63375 63945 64375 65611 65625 65975 73125 73515 74263 74529 74675 75705 76125 76531 79625 84357 84825 86623 87035 88305 88725 90125 90625 91875 92365 95481 98397 100425 102375 102921 104545 105125 105625 106575 115875 116493 118755 121849 121875 122525 123627 124215 126175 126875 134415 137917 140595 141375 142129 143325 146363 147175 147875 153125 156663 159135 162225 163125 163995 166257 167375 170625 171535 177625 188181 189225 190125 193125 194155 196833 196875 197925 206045 207025 220545 222789 224025 227115 228375 229593 234325 235625 238875 240149 259869 261105 264915 265225 266175 270375 271817 271875 273325 275625 277095 284375 301275 307661 308763 313635 315375 316875 319725 321875 328055 329875 349479 365547 365625 367575 370881 371315 372645 373375 378525 380625 382655 398125 413751 421785 424125 426387 433115 435175 439089 441525 443625 450625 459375 461825 477405 491985 502125 504803 511875 514605 519841 522725 525625 528125 532875 535717 579375 582465 590499 593775 606361 609245 612625 618135 621075 630875 634375 668367 672075 688779 689585 702975 706875 710645 716625 720447 731815 735875 739375 779607 783315 795675 811125 815451 815625 819975 831285 836875 852943 853125 857675 888125 922983 940905 946125 950625 965419 965625 970775 984165 989625 994903 1030225 1035125 1092727 1096641 1102725 1113945 1120125 1126099 1135575 1141875 1147965 1171625 1178125 1194375 1200745 1241253 1279161 1299345 1305525 1317267 1324575 1326125 1330875 1351875 1359085 1366625 1378125 1385475 1506375 1514409 1538305 1543815 1559523 1568175 1576875 1584375 1598625 1607151 1640275 1649375 1747395 1792921 1819083 1827735 1837875 1854405 1856575 1863225 1866875 1892625 1902719 1903125 1913275 1990625 2068755 2108925 2120625 2131935 2153627 2161341 2165575 2175875 2195445 2207625 2218125 2253125 2309125 2387025 2446353 2459925 2510625 2524015 2558829 2559375 2573025 2599205 2613625 2628125 2664375 2678585 2768949 2896257 2896875 2912325 2952495 2968875 2984709 3031805 3046225 3063125 3090675 3105375 3154375 3278181 3341835 3360375 3378297 3443895 3447925 3514875 3533621 3534375 3553225 3583125 3602235 3659075 3679375 3696875 3898035 3916575 3978375 3999593 4055625 4077255 4099875 4156425 4184375 4244527 4264715 4288375 4440625 4543227 4614915 4678569 4704525 4730625 4753125 4821453 4827095 4853875 4920825 4948125 4974515 5151125 5175625 5378763 5457249 5463635 5483205 5513625 5569725 5600625 5630495 5677875 5708157 5709375 5739825 5858125 5971875 6003725 6206265 6395805 6460881 6496725 6527625 6586335 6622875 6630625 6654375 6757933 6759375 6795425 6833125 6927375 6964321 7531875 7572045 7649089 7676487 7691525 7719075 7797615 7840875 7882693 7884375 7993125 8035755 8201375 8246875 8688771 8736975 8922169 8954127 8964605 9095415 9138675 9189375 9272025 9282875 9316125 9334375 9463125 9513595 9566375 9834543 10134891 10343775 10544625 10600863 10603125 10659675 10768135 10806705 10827875 10879375 10977225 11038125 11090625 11545625 11935125 11998779 12231765 12299625 12550447 12553125 12620075 12733581 12794145 12865125 12996025 13068125 13321875 13392925 13844745 14205451 14481285 14561625 14639287 14762475 14844375 14923545 15075389 15159025 15231125 15315625 15453375 15526875 15771875 16136289 16390905 16709175 16801875 16891485 17124471 17219475 17239625 17574375 17668105 17766125 17915625 18011175 18295375 18396875 19382643 19490175 19582875 19891875 19997965 20273799 20278125 20386275 20499375 20782125 20892963 21222635 21323575 21441875 22716135 22947267 23074575 23392845 23522625 23648079 23653125 24107265 24135475 24269375 24604125 24735347 24740625 24872575 25755625 25878125 26766507 26893815 27286245 27318175 27416025 27568125 27848625 27997151 28003125 28152475 28389375 28540785 28699125 29290625 30018625 31031325 31689083 31802589 31979025 32304405 32483625 32638125 32931675 33114375 33153125 33271875 33789665 33977125 34165625 34636875 34821605 35996337 37651341 37659375 37860225 38200743 38245445 38382435 38457625 38595375 38988075 39204375 39413465 39965625 40178775 41006875 42616353 43443855 43684875 43917861 44610845 44770635 44823025 45226167 45477075 45693375 45946875 46360125 46414375 46580625 47315625 47567975 47831875 49172715 50674455 51718875 51994709 52723125 53004315 53298375 53543623 53840675 54033525 54139375 54396875 54886125 55178851 55190625 57728125 59675625 59993895 60821397 61158825 61498125 62455183 62678889 62752235 63100375 63667905 63970725 64325625 64980125 65340625 66964625 68841801 69223725 70944237 71027255 72406425 72808125 73196435 73812375 74206041 74221875 74617725 75376945 75795125 76155625 77266875 77634375 80299521 80681445 81954525 83545875 83991453 84009375 84457425 85622355 86097375 86198125 87853129 87871875 88340525 88830625 90055875 91476875 95067249 96913215 97450875 97914375 99438157 99459375 99989825 101368995 101931375 102475009 102496875 103910625 104464815 106113175 106617875 107209375 112954023 113580675 114736335 115372875 115988197 116964225 117613125 118240395 120536325 120677375 121346875 123020625 123676735 124362875 127849059 128778125 131753583 133832535 134469075 135678501 136431225 136590875 137080125 137840625 139243125 139985755 140762375 141946875 142703925 143495625 150093125 155156625 155984127 158445415 159012945 159895125 160630869 161522025 162418125 163190625 164658375 165536553 165571875 168948325 169885625 173184375 174108025 179981685 184670863 187365549 188256705 189301125 191003715 191227225 191912175 192288125 192976875 194940375 195980057 196021875 197067325 200893875 205034375 213081765 217219275 218424375 219589305 221823581 222618123 223054225 223853175 224115125 226130835 227385375 228466875 231800625 232071875 232903125 237839875 239159375 245863575 251974359 253372275 258594375 259973545 263559387 263615625 265021575 266491875 267718115 269203375 270167625 270696875 274430625 275894255 285201747 298314471 298378125 299969475 304106985 305794125 307425027 307490625 312275915 313394445 313761175 315501875 318339525 319853625 321628125 324900625 334823125 344209005 346118625 347964591 354721185 355136275 362032125 363962963 364040625 365982175 369061875 371030205 373088625 376884725 378975625 380778125 386334375 401497605 403407225 409772625 411958079 417729375 419957265 422287125 428111775 430486875 430990625 437186281 439265645 441702625 444153125 450279375 457384375 467952381 475336245 481892607 484566075 487254375 489571875 496609659 497190785 499949125 506844975 509656875 512375045 519553125 522324075 530565875 533089375 554012589 562096647 564770115 567903375 573681675 576864375 579940985 584821125 587940171 588065625 591201975 602681625 603386875 615103125 618383675 621814375 639245295 658767915 665470743 669162675 672345375 678392505 682156125 682954375 685400625 696067099 696215625 699928775 703811875 713519625 717325063 717478125 750465625 775783125 779920635 790678161 792227075 795064725 799475625 803154345 807610125 811917379 812090625 823291875 827682765 844741625 849428125 870540125 894943413 899908425 918983407 922275081 923354315 936827745 941283525 946505625 955018575 956136125 959560875 961440625 964884375 974701875 979900285 985336625 1004469375 1043893773 1065408825 1086096375 1091888889 1092121875 1097946525 1109117905 1113090615 1115271125 1119265875 1120575625 1130654175 1136926875 1142334375 1159003125 1189199375 1229317875 1235874237 1259871795 1266861375 1292696041 1292971875 1299867725 1311558843 1317796935 1325107875 1332459375 1338590575 1346016875 1350838125 1372153125 1379471275 1426008735 1491572355 1499847375 1507846561 1520534925 1528970625 1537125135 1552765067 1561379575 1566972225 1568805875 1577509375 1591697625 1599268125 1624503125 1662037767 1674115625 1721045025 1730593125 1739822955 1763820513 1773605925 1775681375 1810160625 1819814815 1829910875 1845309375 1855151025 1865443125 1884423625 1894878125 1996412229 2007488025 2017036125 2048863125 2059790395 2088201297 2088646875 2099786325 2111435625 2140558875 2151975189 2152434375 2185931405 2196328225 2208513125 2251396875 2339761905 2376681225 2409463035 2422830375 2435752137 2436271875 2483048295 2485953925 2499745625 2534224875 2547740741 2548284375 2561875225 2611620375 2652829375 2665446875 2756950221 2770062945 2810483235 2823850575 2839516875 2868408375 2883706553 2884321875 2899704925 2924105625 2939700855 2956009875 3013408125 3016934375 3091918375 3109071875 3196226475 3275666667 3293839575 3327353715 3345813375 3361726875 3391962525 3410780625 3414771875 3427003125 3480335495 3499643875 3519059375 3567598125 3586625315 3707622711 3878088123 3878915625 3899603175 3934676529 3953390805 3961135375 3975323625 3997378125 4015771725 4038050625 4059586895 4116459375 4138413825 4223708125 4352700625 4474717065 4499542125 4523539683 4594917035 4611375405 4616771575 4658295201 4684138725 4706417625 4732528125 4775092875 4780680625 4797804375 4873509375 4899501425 4926683125 5022346875 5219468865 5327044125 5355455027 5430481875 5459444445 5489732625 5545589525 5565453075 5576355625 5596329375 5602878125 5653270875 5683421653 5684634375 5945996875 6146589375 6179371185 6264603891 6299358975 6334306875 6432883849 6455925567 6463480205 6499338625 6557794215 6588984675 6625539375 6692952875 6730084375 6754190625 6897356375 7130043675 7307256411 7457861775 7499236875 7539232805 7602674625 7643222223 7644853125 7685625675 7763825335 7806897875 7834861125 7844029375 7958488125 7996340625 8270850663 8310188835 8605225125 8651119659 8652965625 8699114775 8819102565 8868029625 8878406875 9048872287 9050803125 9099074075 9149554375 9275755125 9327215625 9422118125 9982061145 10037440125 10085180625 10244315625 10298951975 10441006485 10498931625 10554925927 10557178125 10702794375 10759875945 10929657025 10981641125 11042565625 11634264369 11698809525 11883406125 11946784291 12047315175 12114151875 12178760685 12415241475 12429769625 12498728125 12671124375 12738703705 12809376125 13058101875 13264146875 13570619049 13784751105 13850314725 13974885603 14052416175 14119252875 14197584375 14342041875 14418532765 14498524625 14620528125 14698504275 14780049375 15067040625 15459591875 15981132375 16066365081 16378333335 16469197875 16636768575 16729066875 16808634375 16959812625 17050264959 17053903125 17401677475 17498219375 17837990625 17933126575 18538113555 19298651547 19390440615 19498015875 19673382645 19766954025 19805676875 19876618125 20078858625 20185945871 20190253125 20297934475 20692069125 21118540625 21763503125 22373585325 22497710625 22617698415 22929666669 22974585175 23056877025 23083857875 23291476005 23420693625 23532088125 23875464375 23903403125 23989021875 24497507125 24633415625 25953358977 26097344325 26635220625 26777275135 27146616861 27152409375 27297222225 27448663125 27727947625 27827265375 27881778125 27981646875 28266354375 28417108265 30732946875 30896855925 31323019455 31496794875 31664777781 31671534375 32164419245 32279627835 32317401025 32496693125 32788971075 32944923375 33127696875 33464764375 34486781875 35650218375 35840352873 36536282055 37289308875 37488185189 37496184375 37696164025 38013373125 38216111115 38428128375 38819126675 39034489375 39174305625 39220146875 39792440625 41354253315 41550944175 43026125625 43255598295 43495573875 44095512825 44340148125 44392034375 45030186943 45244361435 45495370375 45747771875 46378775625 47110590625 48199095243 49910305725 50187200625 50425903125 51150794877 51494759875 52205032425 52494658125 52774629635 53513971875 53799379725 54648285125 54908205625 57895954641 58171321845 58494047625 59417030625 59733921455 60236575875 60557837613 60570759375 60893803425 62076207375 62148848125 63355621875 63693518525 64046880625 65290509375 67853095245 68923755525 69251573625 69874428015 70262080875 70596264375 71710209375 72092663825 72492623125 73492521375 73884481489 73900246875 77297959375 79905661875 80331825405 81439850583 81891666675 82345989375 83183842875 83627490037 83645334375 84799063125 85251324795 87008387375 87491096875 89665632875 92690567775 94994333343 96493257735 96952203075 97490079375 98366913225 98834770125 99028384375 99383090625 100394293125 100929729355 101489672375 103460345625 107521058619 111867926625 112464555567 112488553125 113088492075 114648333345 114872925875 115284385125 115419289375 116457380025 117103468125 117660440625 119377321875 122487535625 129766794885 130486721625 133176103125 133886375675 135090560829 135733084305 136486111125 137243315625 138639738125 139136326875 141331771875 142085541325 154484279625 155308195783 156615097275 157483974375 158323888905 160822096225 161398139175 161587005125 162483465625 163944855375 164724616875 167323821875 172433909375 178251091875 179201764365 181673512839 182681410275 186446544375 187440925945 188480820125 190066865625 191080555575 192140641875 194095633375 195172446875 195871528125 206771266575 207754720875 215130628125 216277991475 217477869375 220477564125 221653444467 221700740625 225150934715 226221807175 227476851875 231893878125 240995476215 249551528625 250882470111 250936003125 255753974385 257473799375 261025162125 262417296323 262473290625 263873148175 268996898625 273241425625 274541028125 289479773205 290856609225 292470238125 297085153125 298669607275 301182879375 302789188065 304469017125 310381036875 310744240625 318467592625 320234403125 337393666701 339265476225 344618777625 346257868125 349372140075 351310404375 352981321875 360463319125 362463115625 367462606875 369422407445 399528309375 401659127025 405271682487 407199252915 409458333375 411729946875 415919214375 418137450185 423995315625 426256623975 435041936875 448328164375 463452838875 465924587349 474971666715 482466288675 484761015375 487450396875 491834566125 494173850625 501971465625 504648646775 507448361875 517301728125 537605293095 559339633125 562322777835 565442460375 573241666725 574364629375 576421925625 577096446875 582286900125 585392430259 585517340625 612437678125 648833974425 652433608125 664960333401 669431878375 675452804145 678665421525 682430555625 693198690625 695681634375 710427706625 752647410333 772421398125 776540978915 783075486375 787251888969 787419871875 791619444525 804110481125 806990695875 807935025625 819724276875 823623084375 891255459375 896008821825 908367564195 913407051375 932232721875 937204629725 942404100625 955402777875 960703209375 970478166875 1033856332875 1038773604375 1081389957375 1087157370481 1087389346875 1102387820625 1108267222335 1125754673575 1131109035875 1137384259375 1204977381075 1247757643125 1254412350555 1278769871925 1287368996875 1305125810625 1312086481615 1319365740875 1344984493125 1366207128125 1397773762047 1447398866025 1454283046125 1462351190625 1493348036375 1505914396875 1513945940325 1522345085625 1551905184375 1592337963125 1686968333505 1696327381125 1723093888125 1731289340625 1746860700375 1756177290777 1756552021875 1802316595625 1837313034375 1847112037225 2008295635125 2026358412435 2035996264575 2047291666875 2079596071875 2090687250925 2131283119875 2175209684375 2241640821875 2317264194375 2329622936745 2361755666907 2374858333575 2412331443375 2423805076875 2459172830625 2470869253125 2523243233875 2537241809375 2688026465475 2796698165625 2811613889175 2827212301875 2866208333625 2871823146875 2882109628125 2911434500625 2926962151295 3244169872125 3261472111443 3262168040625 3324801667005 3347159391875 3377264020725 3393327107625 3412152778125 3552138533125 3763237051665 3862106990625 3882704894575 3915377431875 3936259444845 3958097222625 4020552405625 4034953479375 4039675128125 4098621384375 4480044109125 4541837820975 4567035256875 4686023148625 4712020503125 4777013889375 4852390834375 5169281664375 5193868021875 5268531872331 5406949786875 5435786852405 5511939103125 5541336111675 5628773367875 5655545179375 6024886905375 6238788215625 6272061752775 6393849359625 6525629053125 6560432408075 6596828704375 6724922465625 6988868810235 7236994330125 7271415230625 7466740181875 7569729701625 7610101593367 7611725428125 7961689815625 8434841667525 8481636905625 8615469440625 8734303501875 8780886453885 9011582978125 9235560186125 9784416334329 10041478175625 10131792062175 10179981322875 10236458334375 10453436254625 10656415599375 11586320971875 11648114683725 11808778334535 11874291667875 12061657216875 12119025384375 12295864153125 12616216169375 13440132327375 14058069445875 14136061509375 14331041668125 14557172503125 14634810756475 16220849360625 16307360557215 16624008335025 16735796959375 16886320103625 16966635538125 17760692665625 18816185258325 19413524472875 19576887159375 19681297224225 19790486113125 20102762028125 20174767396875 22400220545625 22709189104875 22830304780101 22835176284375 23430115743125 23885069446875 25846408321875 26342659361655 27034748934375 27178934262025 27706680558375 28143866839375 28277725896875 30124434526875 31360308763875 31969246798125 32802162040375 32984143521875 34944344051175 36184971650625 36357076153125 37333700909375 37848648508125 38050507966835 42174208337625 42408184528125 43671517509375 43904432269425 46177800930625 48922081671645 50207390878125 50658960310875 50899906614375 52267181273125 53282077996875 58240573418625 59043891672675 59371458339375 60308286084375 63081080846875 67200661636875 68490914340303 70290347229375 71655208340625 73174053782375 81104246803125 81536802786075 83120041675125 84431600518125 84833177690625 94080926291625 97067622364375 98406486121125 98952430565625 112001102728125 113545945524375 114151523900505 117150578715625 131713296808275 135894671310125 138533402791875 140719334196875 150622172634375 156801543819375 159846233990625 164010810201875 174721720255875 180924858253125 189243242540625 190252539834175 210871041688125 219522161347125 230889004653125 244610408358225 253294801554375 254499533071875 261335906365625 291202867093125 295219458363375 296857291696875 336003308184375 342454571701515 351451736146875 365870268911875 407684013930375 415600208375625 422158002590625 470404631458125 485338111821875 492032430605625 567729727621875 570757619502525 658566484041375 679473356550625 692667013959375 784007719096875 820054051009375 873608601279375 951262699170875 1054355208440625 1097610806735625 1223052041791125 1266474007771875 1456014335465625 1476097291816875 1712272858507575 1829351344559375 2038420069651875 2078001041878125 2352023157290625 2460162153028125 2853788097512625 3292832420206875 3397366782753125 4368043006396875 4756313495854375 5488054033678125 6115260208955625 7380486459084375 8561364292537875 10192100348259375 14268940487563125 16464162101034375 23781567479271875 30576301044778125 42806821462689375 71344702437815625 214034107313446875
- Sum of all divisors σ(n): 509059345588204320
- Sum of proper divisors (its aliquot sum) s(n): 295025238274757445
- 214034107313446875 is an abundant number, because the sum of its proper divisors (295025238274757445) is greater than itself. Its abundance is 80991130961310570
Bases of 214034107313446875
- Binary: 10111110000110011011100010111110000011110001011111110110112
- Hexadecimal: 0x2F866E2F83C5FDB
- Base-36: 1MJGRBHTJE8R
Squares and roots of 214034107313446875
- 214034107313446875 squared (2140341073134468752) is 45810599093464093063380193447265625
- 214034107313446875 cubed (2140341073134468753) is 9805030682463785823109627001398448211612762451171875
-
The
square root of 214034107313446875 is 462638203.4737802271 -
The
cube root of 214034107313446875 is 598174.1785899725
Scales and comparisons
How big is 214034107313446875?- 214,034,107,313,446,875 seconds is equal to 6,805,622,561 years, 31 weeks, 3 days, 3 hours, 41 minutes, 15 seconds.
-
To count from 1 to 214,034,107,313,446,875 would take you about twenty billion, four hundred sixteen million, eight hundred sixty-seven thousand, six hundred eighty-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 214034107313446875 cubic inches would be around 49847.8 feet tall.
Recreational maths with 214034107313446875
- 214034107313446875 backwards is 578644313701430412
- 214034107313446875 is a
Harshad number . - The number of decimal digits it has is: 18
- The sum of 214034107313446875's digits is 63
- 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 214034107313446875 - Facts about the integer". Numbermatics.com. 2024. Web. 26 May 2024.
APA style:
Numbermatics. (2024). Number 214034107313446875 - Facts about the integer. Retrieved 26 May 2024, from https://numbermatics.com/n/214034107313446875/
Chicago style:
Numbermatics. 2024. "Number 214034107313446875 - Facts about the integer". https://numbermatics.com/n/214034107313446875/
The information we have on file for 214034107313446875 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 214034107313446875, math, Factors of 214034107313446875, curriculum, school, college, exams, university, Prime factorization of 214034107313446875, STEM, science, technology, engineering, physics, economics, calculator, two hundred fourteen quadrillion, thirty-four trillion, one hundred seven billion, three hundred thirteen million, four hundred forty-six thousand, eight hundred seventy-five.