10901096589164544
10,901,096,589,164,544 is an even composite number composed of six prime numbers multiplied together.
10901096589164544 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two thousand and fifty-two divisors.
Prime factorization of 10901096589164544:
218 × 32 × 7 × 312 × 73 × 972
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 7 × 31 × 31 × 73 × 97 × 97)See below for interesting mathematical facts about the number 10901096589164544 from the Numbermatics database.
Names of 10901096589164544
- Cardinal: 10901096589164544 can be written as Ten quadrillion, nine hundred one trillion, ninety-six billion, five hundred eighty-nine million, one hundred sixty-four thousand, five hundred forty-four.
Scientific notation
- Scientific notation: 1.0901096589164544 × 1016
Factors of 10901096589164544
Divisors of 10901096589164544
- Number of divisors d(n): 2052
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 31 32 36 42 48 56 62 63 64 72 73 84 93 96 97 112 124 126 128 144 146 168 186 192 194 217 219 224 248 252 256 279 288 291 292 336 372 384 388 434 438 448 496 504 511 512 558 576 582 584 651 657 672 679 744 768 776 868 873 876 896 961 992 1008 1022 1024 1116 1152 1164 1168 1302 1314 1344 1358 1488 1533 1536 1552 1736 1746 1752 1792 1922 1953 1984 2016 2037 2044 2048 2232 2263 2304 2328 2336 2604 2628 2688 2716 2883 2976 3007 3066 3072 3104 3472 3492 3504 3584 3844 3906 3968 4032 4074 4088 4096 4464 4526 4599 4608 4656 4672 5208 5256 5376 5432 5766 5952 6014 6111 6132 6144 6208 6727 6789 6944 6984 7008 7081 7168 7688 7812 7936 8064 8148 8176 8192 8649 8928 9021 9052 9198 9216 9312 9344 9409 10416 10512 10752 10864 11532 11904 12028 12222 12264 12288 12416 13454 13578 13888 13968 14016 14162 14336 15376 15624 15841 15872 16128 16296 16352 16384 17298 17856 18042 18104 18396 18432 18624 18688 18818 20181 20367 20832 21024 21049 21243 21504 21728 23064 23808 24056 24444 24528 24576 24832 26908 27063 27156 27776 27936 28032 28227 28324 28672 30752 31248 31682 31744 32256 32592 32704 32768 34596 35712 36084 36208 36792 36864 37248 37376 37636 40362 40734 41664 42048 42098 42486 43008 43456 46128 47523 47616 48112 48888 49056 49152 49567 49664 53816 54126 54312 55552 55872 56064 56454 56648 57344 60543 61504 62496 63147 63364 63488 63729 64512 65184 65408 65536 65863 69192 70153 71424 72168 72416 73584 73728 74496 74752 75272 80724 81468 83328 84096 84196 84681 84972 86016 86912 92256 93217 95046 95232 96224 97776 98112 98304 99134 99328 107632 108252 108624 111104 111744 112128 112908 113296 114688 121086 123008 124992 126294 126728 126976 127458 129024 130368 130816 131072 131726 138384 140306 142569 142848 144336 144832 147168 147456 148701 148992 149504 150544 161448 162936 166656 168192 168392 169362 169944 172032 173824 184512 186434 189441 190092 190464 192448 195552 196224 196608 197589 198268 198656 210459 215264 216504 217248 219511 222208 223488 224256 225816 226592 229376 242172 246016 249984 252588 253456 253952 254916 258048 260736 261632 262144 263452 276768 279651 280612 285138 285696 288672 289664 291679 294336 294912 297402 297984 299008 301088 322896 325872 333312 336384 336784 338724 339888 344064 347648 369024 372868 378882 380184 380928 384896 391104 392448 393216 395178 396536 397312 420918 430528 433008 434496 439022 444416 446103 446976 448512 451632 453184 458752 484344 491071 492032 499968 505176 506912 507904 509832 516096 521472 523264 526904 553536 559302 561224 570276 571392 577344 579328 583358 588672 589824 592767 594804 595968 598016 602176 631377 645792 651744 652519 658533 666624 672768 673568 677448 679776 686857 688128 695296 738048 745736 757764 760368 761856 769792 782208 784896 786432 790356 793072 794624 838953 841836 861056 866016 868992 875037 878044 888832 892206 893952 897024 903264 906368 917504 968688 982142 984064 999936 1010352 1013824 1015808 1019664 1032192 1042944 1046528 1053808 1107072 1118604 1122448 1140552 1142784 1154688 1158656 1166716 1177344 1179648 1185534 1189608 1191936 1196032 1204352 1262754 1291584 1303488 1305038 1317066 1333248 1345536 1347136 1354896 1359552 1373714 1376256 1390592 1473213 1476096 1491472 1515528 1520736 1523712 1536577 1539584 1564416 1569792 1580712 1586144 1589248 1677906 1683672 1722112 1732032 1737984 1750074 1756088 1777664 1784412 1787904 1794048 1806528 1812736 1835008 1937376 1957557 1964284 1968128 1975599 1999872 2020704 2027648 2031616 2039328 2041753 2060571 2064384 2085888 2093056 2107616 2214144 2237208 2244896 2281104 2285568 2309376 2317312 2333432 2354688 2359296 2371068 2379216 2383872 2392064 2408704 2525508 2583168 2606976 2610076 2625111 2634132 2666496 2691072 2694272 2709792 2719104 2747428 2752512 2781184 2946426 2952192 2982944 3031056 3041472 3047424 3073154 3079168 3128832 3139584 3161424 3172288 3178496 3355812 3367344 3444224 3464064 3475968 3500148 3512176 3555328 3568824 3575808 3588096 3613056 3625472 3874752 3915114 3928568 3936256 3951198 3999744 4041408 4055296 4063232 4078656 4083506 4121142 4128768 4171776 4186112 4215232 4419639 4428288 4474416 4489792 4562208 4571136 4609731 4618752 4634624 4666864 4709376 4742136 4758432 4767744 4784128 4807999 4817408 5051016 5166336 5213952 5220152 5250222 5268264 5332992 5382144 5388544 5419584 5438208 5494856 5505024 5562368 5872671 5892852 5904384 5965888 6062112 6082944 6094848 6125259 6146308 6158336 6181713 6257664 6279168 6322848 6344576 6356992 6711624 6734688 6804841 6888448 6928128 6951936 7000296 7024352 7110656 7137648 7151616 7176192 7226112 7250944 7749504 7830228 7857136 7872512 7902396 7999488 8082816 8110592 8126464 8157312 8167012 8242284 8257536 8343552 8372224 8430464 8839278 8856576 8948832 8979584 9042049 9124416 9142272 9219462 9237504 9269248 9333728 9418752 9484272 9516864 9535488 9568256 9615998 9634816 10102032 10332672 10427904 10440304 10500444 10536528 10665984 10764288 10777088 10839168 10876416 10989712 11124736 11745342 11785704 11808768 11931776 12124224 12165888 12189696 12250518 12292616 12316672 12363426 12515328 12558336 12645696 12689152 12713984 13423248 13469376 13609682 13776896 13829193 13856256 13903872 14000592 14048704 14221312 14275296 14303232 14352384 14423997 14452224 14501888 15499008 15660456 15714272 15745024 15804792 15998976 16165632 16221184 16314624 16334024 16484568 16515072 16687104 16744448 16860928 17678556 17713152 17897664 17959168 18084098 18248832 18284544 18375777 18438924 18475008 18538496 18667456 18837504 18968544 19033728 19070976 19136512 19231996 19269632 20204064 20414523 20665344 20855808 20880608 21000888 21073056 21292567 21331968 21528576 21554176 21678336 21752832 21979424 22249472 23490684 23571408 23617536 23863552 24248448 24331776 24379392 24501036 24585232 24633344 24726852 25030656 25116672 25291392 25378304 25427968 26846496 26938752 27126147 27219364 27553792 27658386 27712512 27807744 28001184 28097408 28442624 28550592 28606464 28704768 28847994 28904448 29003776 30998016 31320912 31428544 31490048 31609584 31997952 32331264 32442368 32629248 32668048 32969136 33374208 33488896 33721856 35357112 35426304 35795328 35918336 36168196 36497664 36569088 36751554 36877848 36950016 37076992 37334912 37675008 37937088 38067456 38141952 38463992 38539264 40408128 40829046 41330688 41711616 41761216 42001776 42146112 42585134 42663936 43057152 43108352 43271991 43356672 43505664 43958848 44498944 46981368 47142816 47235072 47633887 47727104 48496896 48663552 49002072 49170464 49266688 49453704 50061312 50233344 50582784 50756608 53692992 53877504 54252294 54438728 55107584 55316772 55425024 55615488 56002368 56194816 56885248 57101184 57212928 57409536 57695988 57808896 58007552 61243569 61996032 62641824 62857088 62980096 63219168 63294343 63877701 63995904 64662528 64884736 65258496 65336096 65938272 66748416 66977792 67443712 70714224 70852608 71590656 71836672 72336392 72995328 73138176 73503108 73755696 73900032 74153984 74669824 75350016 75874176 76134912 76283904 76927984 77078528 80816256 81378441 81658092 82661376 83423232 83522432 84003552 84292224 85170268 85327872 86114304 86216704 86543982 86713344 87011328 87917696 88997888 93962736 94285632 94470144 95267774 95454208 96993792 97327104 98004144 98340928 98533376 98907408 100122624 100466688 101165568 101513216 107385984 107755008 108504588 108877456 110215168 110633544 110850048 111230976 112004736 112389632 114202368 114425856 115391976 115617792 116015104 122487138 123992064 125283648 125714176 125960192 126438336 126588686 127755402 127991808 129325056 129769472 130516992 130672192 131876544 133496832 133955584 134887424 141428448 141705216 142901661 143181312 143673344 144672784 145990656 147006216 147511392 147800064 148307968 149047969 149339648 150700032 151748352 152269824 153855968 154157056 161632512 162756882 163316184 165322752 166846464 167044864 168007104 168584448 170340536 170655744 172228608 172433408 173087964 173426688 174022656 175835392 177995776 187925472 188571264 188940288 189883029 190535548 190908416 191633103 193987584 194654208 196008288 196681856 197066752 197814816 200245248 200933376 202331136 203026432 214771968 215510016 217009176 217754912 220430336 221267088 221700096 222461952 224009472 224779264 228404736 228851712 230783952 231235584 232030208 244974276 247984128 250567296 251428352 251920384 252876672 253177372 255510804 255983616 258650112 259538944 261033984 261344384 263753088 266993664 269774848 282856896 283410432 285803322 286362624 287346688 289345568 291981312 294012432 295022784 295600128 296615936 298095938 298679296 301400064 303496704 304539648 307711936 308314112 323265024 325513764 326632368 330645504 333692928 334089728 336014208 337168896 340681072 344866816 346175928 346853376 348045312 351670784 375850944 377142528 377880576 379766058 381071096 381816832 383266206 387975168 389308416 392016576 393363712 394133504 395629632 400490496 401866752 404662272 406052864 428704983 429543936 431020032 434018352 435509824 440860672 442534176 443400192 444923904 447143907 448018944 449558528 456809472 461567904 462471168 464060416 489948552 495968256 501134592 502856704 505753344 506354744 511021608 511967232 517300224 519077888 522067968 522688768 527506176 533987328 539549696 565713792 566820864 569649087 571606644 572725248 574693376 578691136 583962624 588024864 590045568 591200256 593231872 596191876 597358592 602800128 606993408 609079296 615423872 616628224 646530048 651027528 653264736 660069577 661291008 667385856 668179456 672028416 674337792 681362144 689733632 692351856 693706752 696090624 703341568 751701888 754285056 755761152 759532116 762142192 763633664 766532412 775950336 778616832 784033152 786727424 788267008 791259264 800980992 809324544 812105728 857409966 859087872 862040064 868036704 871019648 881721344 885068352 886800384 889847808 894287814 896037888 899117056 913618944 923135808 924942336 928120832 979897104 991936512 1002269184 1005713408 1011506688 1012709488 1022043216 1034600448 1038155776 1044135936 1045377536 1055012352 1079099392 1131427584 1133641728 1139298174 1143213288 1145450496 1149386752 1157382272 1167925248 1176049728 1180091136 1182400512 1192383752 1194717184 1205600256 1213986816 1218158592 1230847744 1233256448 1293060096 1302055056 1306529472 1320139154 1322582016 1334771712 1336358912 1341431721 1344056832 1348675584 1362724288 1379467264 1384703712 1387413504 1392181248 1406683136 1503403776 1508570112 1519064232 1524284384 1527267328 1533064824 1551900672 1557233664 1568066304 1573454848 1582518528 1601961984 1618649088 1624211456 1714819932 1718175744 1724080128 1736073408 1742039296 1763442688 1770136704 1773600768 1779695616 1788575628 1792075776 1798234112 1827237888 1846271616 1849884672 1856241664 1959794208 1980208731 1983873024 2004538368 2011426816 2023013376 2025418976 2044086432 2069200896 2076311552 2088271872 2090755072 2110024704 2158198784 2262855168 2267283456 2278596348 2286426576 2290900992 2298773504 2314764544 2335850496 2352099456 2360182272 2364801024 2384767504 2389434368 2427973632 2436317184 2461695488 2466512896 2586120192 2604110112 2613058944 2640278308 2645164032 2669543424 2672717824 2682863442 2688113664 2697351168 2725448576 2758934528 2769407424 2774827008 2784362496 2813366272 3006807552 3017140224 3038128464 3048568768 3054534656 3066129648 3103801344 3114467328 3136132608 3146909696 3165037056 3237298176 3248422912 3429639864 3436351488 3448160256 3472146816 3484078592 3540273408 3547201536 3577151256 3584151552 3596468224 3654475776 3692543232 3699769344 3919588416 3960417462 3967746048 4009076736 4022853632 4046026752 4050837952 4088172864 4138401792 4152623104 4176543744 4181510144 4220049408 4316397568 4525710336 4557192696 4572853152 4581801984 4597547008 4620487039 4629529088 4671700992 4704198912 4720364544 4769535008 4778868736 4855947264 4872634368 4923390976 5172240384 5208220224 5226117888 5280556616 5290328064 5339086848 5345435648 5365726884 5376227328 5394702336 5450897152 5517869056 5538814848 5549654016 5568724992 5626732544 5940626193 6013615104 6034280448 6076256928 6097137536 6109069312 6132259296 6207602688 6228934656 6272265216 6293819392 6330074112 6474596352 6496845824 6859279728 6872702976 6896320512 6944293632 6968157184 7080546816 7094403072 7154302512 7168303104 7192936448 7308951552 7385086464 7399538688 7839176832 7920834924 7935492096 8018153472 8045707264 8092053504 8101675904 8176345728 8276803584 8353087488 8363020288 8440098816 8632795136 9051420672 9114385392 9145706304 9163603968 9195094016 9240974078 9259058176 9343401984 9408397824 9440729088 9539070016 9557737472 9711894528 9745268736 9846781952 10344480768 10416440448 10452235776 10561113232 10690871296 10731453768 10752454656 10789404672 10901794304 11077629696 11099308032 11253465088 11881252386 12027230208 12068560896 12152513856 12194275072 12218138624 12264518592 12415205376 12457869312 12544530432 12587638784 12660148224 12949192704 12993691648 13718559456 13745405952 13792641024 13861461117 13888587264 13936314368 14161093632 14308605024 14336606208 14385872896 14617903104 14770172928 15678353664 15841669848 15870984192 16036306944 16091414528 16184107008 16203351808 16352691456 16553607168 16706174976 16726040576 16880197632 17265590272 18102841344 18228770784 18291412608 18327207936 18390188032 18481948156 18518116352 18686803968 18816795648 18881458176 19078140032 19115474944 19423789056 19490537472 19693563904 20688961536 20832880896 20904471552 21122226464 21381742592 21462907536 21504909312 21578809344 21803588608 22155259392 22198616064 22506930176 23762504772 24054460416 24137121792 24305027712 24388550144 24436277248 24529037184 24830410752 25089060864 25175277568 25320296448 25898385408 27437118912 27490811904 27585282048 27722922234 27777174528 27872628736 28322187264 28617210048 28673212416 28771745792 29235806208 29540345856 31356707328 31683339696 32072613888 32182829056 32368214016 32406703616 32705382912 33452081152 33760395264 36205682688 36457541568 36582825216 36654415872 36963896312 37036232704 37373607936 37633591296 37762916352 38156280064 38230949888 38847578112 38981074944 39387127808 41377923072 41584383351 41665761792 41808943104 42244452928 42763485184 42925815072 43009818624 43157618688 43607177216 44310518784 45013860352 47525009544 48108920832 48274243584 48610055424 48777100288 49058074368 49660821504 50178121728 50350555136 50640592896 51796770816 54874237824 54981623808 55170564096 55445844468 55554349056 55745257472 56644374528 57234420096 57346424832 57543491584 58471612416 59080691712 62713414656 63366679392 64145227776 64365658112 64736428032 64813407232 65410765824 66904162304 67520790528 72411365376 72915083136 73165650432 73308831744 73927792624 74072465408 75267182592 75525832704 76312560128 76461899776 77695156224 78774255616 82755846144 83168766702 83331523584 83617886208 84488905856 85526970368 85851630144 86019637248 86315237376 87214354432 88621037568 90027720704 95050019088 96217841664 96548487168 97220110848 97554200576 98116148736 100356243456 100701110272 101281185792 109748475648 109963247616 110891688936 111108698112 111490514944 113288749056 114468840192 114692849664 116943224832 118161383424 125426829312 126733358784 128290455552 128731316224 129472856064 129626814464 130821531648 133808324608 135041581056 144822730752 145830166272 146331300864 147855585248 148144930816 150534365184 151051665408 152625120256 155390312448 157548511232 165511692288 166337533404 166663047168 167235772416 168977811712 171053940736 171703260288 172039274496 172630474752 174428708864 177242075136 180055441408 190100038176 192435683328 193096974336 194440221696 195108401152 196232297472 200712486912 201402220544 202562371584 219496951296 219926495232 221783377872 222217396224 222981029888 226577498112 228937680384 229385699328 236322766848 250853658624 253466717568 256580911104 258945712128 259253628928 261643063296 267616649216 270083162112 289645461504 291660332544 292662601728 295711170496 296289861632 301068730368 302103330816 305250240512 315097022464 332675066808 333326094336 334471544832 337955623424 343406520576 344078548992 348857417728 354484150272 380200076352 384871366656 386193948672 388880443392 390216802304 392464594944 401424973824 402804441088 405124743168 438993902592 443566755744 444434792448 445962059776 453154996224 457875360768 472645533696 501707317248 506933435136 513161822208 517891424256 518507257856 523286126592 535233298432 540166324224 579290923008 583320665088 585325203456 591422340992 592579723264 602137460736 604206661632 610500481024 630194044928 665350133616 666652188672 668943089664 675911246848 686813041152 688157097984 697714835456 708968300544 760400152704 769742733312 777760886784 780433604608 784929189888 802849947648 810249486336 877987805184 887133511488 888869584896 891924119552 906309992448 915750721536 945291067392 1003414634496 1013866870272 1037014515712 1046572253184 1158581846016 1166641330176 1170650406912 1182844681984 1185159446528 1204274921472 1208413323264 1221000962048 1260388089856 1330700267232 1333304377344 1337886179328 1351822493696 1373626082304 1395429670912 1417936601088 1520800305408 1539485466624 1555521773568 1560867209216 1569858379776 1605699895296 1620498972672 1755975610368 1774267022976 1777739169792 1783848239104 1812619984896 1831501443072 1890582134784 2006829268992 2027733740544 2074029031424 2093144506368 2333282660352 2341300813824 2365689363968 2370318893056 2408549842944 2442001924096 2661400534464 2666608754688 2675772358656 2703644987392 2747252164608 2790859341824 2835873202176 3041600610816 3111043547136 3121734418432 3139716759552 3511951220736 3548534045952 3555478339584 3625239969792 3663002886144 3781164269568 4013658537984 4055467481088 4148058062848 4186289012736 4666565320704 4682601627648 4731378727936 4817099685888 4884003848192 5322801068928 5333217509376 5351544717312 5407289974784 5494504329216 5581718683648 5671746404352 6083201221632 6222087094272 6243468836864 6279433519104 7023902441472 7097068091904 7110956679168 7326005772288 8027317075968 8110934962176 8296116125696 8372578025472 9333130641408 9365203255296 9462757455872 9768007696384 10645602137856 10666435018752 10814579949568 10989008658432 11343492808704 12166402443264 12444174188544 12486937673728 12558867038208 14047804882944 14194136183808 14652011544576 16054634151936 16221869924352 16592232251392 16745156050944 18666261282816 18730406510592 18925514911744 19536015392768 21291204275712 21332870037504 21629159899136 21978017316864 24332804886528 24888348377088 25117734076416 28095609765888 28388272367616 29304023089152 32443739848704 37332522565632 37460813021184 37851029823488 39072030785536 42582408551424 43258319798272 43956034633728 48665609773056 49776696754176 50235468152832 56191219531776 56776544735232 58608046178304 64887479697408 74665045131264 75702059646976 85164817102848 86516639596544 87912069267456 97331219546112 112382439063552 113553089470464 117216092356608 129774959394816 149330090262528 151404119293952 170329634205696 173033279193088 175824138534912 194662439092224 227106178940928 259549918789632 302808238587904 340659268411392 351648277069824 389324878184448 454212357881856 519099837579264 605616477175808 681318536822784 778649756368896 908424715763712 1211232954351616 1362637073645568 1557299512737792 1816849431527424 2725274147291136 3633698863054848 5450548294582272 10901096589164544
- Sum of all divisors σ(n): 38091396124531152
- Sum of proper divisors (its aliquot sum) s(n): 27190299535366608
- 10901096589164544 is an abundant number, because the sum of its proper divisors (27190299535366608) is greater than itself. Its abundance is 16289202946202064
Bases of 10901096589164544
- Binary: 1001101011101001111101010101011101110000000000000000002
- Hexadecimal: 0x26BA7D55DC0000
- Base-36: 2ZC46MZ7R40
Squares and roots of 10901096589164544
- 10901096589164544 squared (109010965891645442) is 118833906846294854995307906727936
- 10901096589164544 cubed (109010965891645443) is 1295419896599241997445717373656981224814945501184
-
The
square root of 10901096589164544 is 104408316.6666551713 -
The
cube root of 10901096589164544 is 221729.4582591993
Scales and comparisons
How big is 10901096589164544?- 10,901,096,589,164,544 seconds is equal to 346,621,152 years, 11 weeks, 6 days, 15 hours, 2 minutes, 24 seconds.
-
To count from 1 to 10,901,096,589,164,544 would take you about one billion, thirty-nine million, eight hundred sixty-three thousand, four hundred fifty-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 10901096589164544 cubic inches would be around 18477.5 feet tall.
Recreational maths with 10901096589164544
- 10901096589164544 backwards is 44546198569010901
- 10901096589164544 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 10901096589164544's digits is 72
- 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 10901096589164544 - Facts about the integer". Numbermatics.com. 2024. Web. 3 June 2024.
APA style:
Numbermatics. (2024). Number 10901096589164544 - Facts about the integer. Retrieved 3 June 2024, from https://numbermatics.com/n/10901096589164544/
Chicago style:
Numbermatics. 2024. "Number 10901096589164544 - Facts about the integer". https://numbermatics.com/n/10901096589164544/
The information we have on file for 10901096589164544 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 10901096589164544, math, Factors of 10901096589164544, curriculum, school, college, exams, university, Prime factorization of 10901096589164544, STEM, science, technology, engineering, physics, economics, calculator, ten quadrillion, nine hundred one trillion, ninety-six billion, five hundred eighty-nine million, one hundred sixty-four thousand, five hundred forty-four.