759429757847124
759,429,757,847,124 is an even composite number composed of seven prime numbers multiplied together.
What does the number 759429757847124 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 2160 divisors.
759429757847124 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two thousand, one hundred sixty divisors.
Prime factorization of 759429757847124:
22 × 34 × 73 × 132 × 23 × 109 × 1272
(2 × 2 × 3 × 3 × 3 × 3 × 7 × 7 × 7 × 13 × 13 × 23 × 109 × 127 × 127)See below for interesting mathematical facts about the number 759429757847124 from the Numbermatics database.
Names of 759429757847124
- Cardinal: 759429757847124 can be written as Seven hundred fifty-nine trillion, four hundred twenty-nine billion, seven hundred fifty-seven million, eight hundred forty-seven thousand, one hundred twenty-four.
Scientific notation
- Scientific notation: 7.59429757847124 × 1014
Factors of 759429757847124
Divisors of 759429757847124
- Number of divisors d(n): 2160
-
Complete list of divisors:
1 2 3 4 6 7 9 12 13 14 18 21 23 26 27 28 36 39 42 46 49 52 54 63 69 78 81 84 91 92 98 108 109 117 126 127 138 147 156 161 162 169 182 189 196 207 218 234 252 254 273 276 294 299 322 324 327 338 343 351 364 378 381 414 436 441 468 483 507 508 546 567 588 598 621 637 644 654 676 686 702 756 762 763 819 828 882 889 897 966 981 1014 1029 1053 1092 1127 1134 1143 1183 1196 1242 1274 1308 1323 1372 1404 1417 1449 1521 1524 1526 1638 1651 1764 1778 1794 1863 1911 1932 1962 2028 2058 2093 2106 2254 2268 2286 2289 2366 2457 2484 2507 2548 2646 2667 2691 2834 2898 2921 2943 3042 3052 3087 3276 3302 3381 3429 3549 3556 3588 3726 3822 3887 3924 3969 4116 4186 4212 4251 4347 4459 4508 4563 4572 4578 4732 4914 4953 5014 5292 5334 5341 5382 5668 5733 5796 5842 5886 6084 6174 6223 6279 6604 6762 6858 6867 7098 7371 7452 7521 7644 7774 7889 7938 8001 8073 8281 8372 8502 8694 8763 8829 8918 9126 9156 9261 9828 9906 9919 10028 10143 10287 10647 10668 10682 10764 11466 11557 11661 11684 11772 12348 12446 12558 12753 13041 13377 13524 13689 13716 13734 13843 14196 14651 14742 14859 15042 15548 15778 15876 16002 16023 16129 16146 16562 17004 17199 17388 17526 17549 17658 17836 18252 18421 18522 18669 18837 19812 19838 20286 20447 20574 20601 21294 21364 21463 22563 22932 23114 23322 23667 24003 24219 24843 24892 25116 25506 26082 26289 26754 27209 27378 27468 27686 27783 29302 29484 29718 29757 30084 30429 31556 31941 32004 32046 32258 32292 32591 33124 34398 34671 34983 35052 35098 35316 36842 37044 37338 37387 37674 37973 38259 39676 40131 40572 40894 41148 41202 41529 42588 42926 43561 43953 44577 45126 46228 46644 47334 48006 48069 48387 48438 49686 51012 51597 52164 52578 52647 53508 54418 54756 55263 55372 55566 56007 56511 57967 58604 59436 59514 60858 61341 61803 63882 64092 64389 64516 65182 67689 68796 69342 69433 69966 70196 71001 72009 73684 74529 74676 74774 75348 75946 76518 78867 80262 80899 81627 81788 82404 83058 85852 87122 87906 89154 89271 90252 91287 94668 95823 96012 96138 96774 96876 96901 97773 99372 102557 103194 104013 104949 105156 105294 108836 110526 111132 112014 112161 112903 113022 113919 114777 115934 119028 120393 121716 122682 122843 123606 124587 127764 128778 128947 130364 130683 131859 133731 135378 138684 138866 139932 142002 143129 144018 144207 145161 149058 149548 150241 151892 153036 157734 157941 160524 161798 163254 165789 166116 168021 169533 173901 174244 175812 178308 178542 179959 182574 184023 190463 191646 192276 193167 193548 193802 195546 203067 205114 206388 208026 208299 209677 209898 210588 213003 221052 223587 224028 224322 225806 226044 227838 228137 229554 231868 236601 240786 242697 244881 245364 245686 247212 249174 257556 257894 261366 263718 265811 267462 267813 270756 277732 284004 286258 288036 288414 290322 290703 293319 298116 300482 307671 312039 314847 315468 315882 318389 323596 326508 331578 336042 336483 338709 339066 341757 347802 357084 359918 361179 365148 368046 368529 370967 373761 380926 383292 386334 386841 387604 391092 392049 395577 406134 410228 416052 416598 419354 419796 423683 426006 429387 432621 435483 447174 448644 450723 451612 455676 456274 459108 473202 473823 481572 485394 486031 489762 491372 493649 497367 498348 504063 515788 521703 522732 527436 531622 534924 535626 539877 552069 566293 571389 572516 576828 579501 580644 581406 586638 600964 615342 624078 624897 629031 629694 631764 636778 639009 663156 670761 672084 672966 677418 678132 678307 683514 684411 695604 719836 722358 728091 734643 736092 737058 741934 747522 761852 772668 773682 784098 790321 791154 797433 803439 812268 833196 838708 847366 852012 858774 859901 865242 870966 872109 879957 894348 901446 902629 912548 923013 936117 946404 947646 955167 970788 972062 979524 987298 994734 1001903 1008126 1009449 1016127 1025271 1043406 1051687 1063244 1071252 1079754 1104138 1105587 1112901 1121283 1132586 1142778 1159002 1160523 1162812 1173276 1176147 1186731 1230684 1248156 1249794 1258062 1259388 1259713 1271049 1273556 1278018 1288161 1306449 1333241 1341522 1345932 1352169 1354836 1356614 1367028 1368822 1421469 1444716 1456182 1458093 1467739 1469286 1474116 1480947 1483868 1492101 1495044 1547364 1565109 1568196 1580642 1582308 1594866 1596959 1606878 1619631 1656207 1694732 1698879 1714167 1717548 1719802 1730484 1738503 1741932 1744218 1758061 1759914 1802892 1805258 1846026 1860677 1872234 1874691 1887093 1895292 1910334 1944124 1974596 1989468 2003806 2016252 2018898 2032254 2034921 2050542 2053233 2086812 2103374 2159508 2184273 2203929 2208276 2211174 2225802 2228723 2242566 2265172 2285556 2318004 2321046 2339467 2352294 2370963 2373462 2392299 2499588 2516124 2519426 2542098 2556036 2576322 2579703 2596769 2612898 2616327 2639871 2666482 2683044 2704338 2707887 2713228 2725801 2737644 2769039 2842938 2865501 2912364 2916186 2935478 2938572 2961894 2965781 2984202 3005709 3028347 3048381 3075813 3130218 3155061 3161284 3189732 3193918 3213756 3239262 3312414 3316761 3338703 3397758 3428334 3439604 3455543 3477006 3481569 3488436 3516122 3519828 3528441 3610516 3692052 3721354 3744468 3749382 3774186 3779139 3813147 3820668 3864483 3999723 4007612 4037796 4056507 4064508 4069842 4101084 4106466 4139057 4206748 4368546 4374279 4403217 4407858 4422348 4442841 4451604 4457446 4485132 4642092 4678934 4695327 4704588 4741926 4746924 4748149 4784598 4790877 4822571 4858893 5038852 5084196 5096637 5142501 5152644 5159406 5193538 5225796 5232654 5274183 5279742 5332964 5408676 5415774 5451602 5532247 5538078 5582031 5624073 5661279 5685876 5731002 5832372 5870956 5923788 5931562 5968404 6011418 6056694 6096762 6104763 6151626 6159699 6260436 6310122 6318403 6387836 6478524 6552819 6624828 6633522 6677406 6686169 6795516 6856668 6911086 6954012 6963138 7018401 7032244 7056882 7112889 7176897 7361809 7442708 7498764 7548372 7558278 7626294 7728966 7739109 7790307 7848981 7999446 8113014 8123661 8139684 8177403 8212932 8278114 8307117 8596503 8737092 8748558 8806434 8815716 8817991 8885682 8897343 8914892 9017127 9145143 9357868 9390654 9465183 9483852 9496298 9569196 9581754 9645142 9717786 9950283 10016109 10193274 10274173 10285002 10318812 10366629 10387076 10444707 10465308 10548366 10559484 10831548 10903204 11064494 11076156 11164062 11178713 11248146 11322558 11337417 11439441 11462004 11593449 11863124 11999169 12022836 12113388 12169521 12193524 12209526 12303252 12306427 12319398 12417171 12620244 12636806 13024739 13105638 13122837 13209651 13267044 13328523 13354812 13372338 13822172 13926276 14036802 14113764 14225778 14244447 14353794 14372631 14467713 14576679 14723618 15116556 15252588 15289911 15427503 15457932 15478218 15580614 15601061 15697962 15822549 15998892 16226028 16247322 16354806 16376269 16556228 16596741 16614234 16746093 16983837 17193006 17497116 17612868 17635982 17771364 17794686 18034254 18177383 18290286 18314289 18479097 18781308 18930366 18955209 18992596 19080607 19163508 19290284 19435572 19900566 20032218 20058507 20386548 20548346 20570004 20733258 20760467 20889414 21055203 21096732 21338667 21530691 22085427 22128988 22328124 22357426 22496292 22645116 22674834 22854793 22878882 23186898 23217327 23370921 23998338 24188801 24339042 24370983 24419052 24532209 24612854 24638796 24834342 25273612 25789509 26049478 26211276 26245674 26419302 26453973 26657046 26692029 26744676 27051381 28073604 28395549 28451556 28488894 28707588 28745262 28935426 28973399 29153358 29447236 30048327 30579822 30822519 30855006 30956436 31099887 31161228 31202122 31395924 31645098 32494644 32709612 32752538 33193482 33228468 33492186 33536139 33757997 33967674 34012251 34318323 34386012 35271964 35589372 35997507 36068508 36354766 36580572 36628578 36919281 36958194 37251513 37860732 37910418 38161214 39074217 39368511 39628953 39801132 39985569 40064436 40117014 40435403 41096692 41466516 41520934 41778828 42110406 42677334 42733341 43061382 43117893 43403139 44170854 44714852 45349668 45709586 45757764 45869733 46373796 46434654 46741842 46803183 47467647 47996676 48377602 48678084 48741966 49064418 49128807 49225708 49668684 49790223 50238279 51579018 52098956 52491348 52838604 52907946 53314092 53384058 53807741 54102762 54532149 54942867 56791098 56865627 56977788 57241821 57490524 57870852 57946798 58306716 60096654 60175521 61159644 61645038 61710012 61725937 62199774 62281401 62404244 62693423 63165609 63290196 64016001 65505076 66256281 66386964 66984372 67072278 67515994 67935348 68024502 68564379 68636646 69651981 70112763 71919211 71995014 72566403 72709532 73112949 73257156 73596627 73838562 73916388 74503026 75820836 76322428 78148434 78737022 79257906 79361919 79971138 80076087 80234028 80870806 81154143 83041868 84220812 85186647 85354668 85466682 86122764 86144989 86235786 86806278 86920197 88341708 91419172 91739466 92467557 92869308 93299661 93483684 93606366 94935294 96755204 97483932 98128836 98257614 99580446 100476558 100608417 101273991 102036753 103158036 105815892 106768116 107615482 107992521 108205524 109064298 109207427 109885734 110757843 111754539 113582196 113731254 114483642 114633883 115893596 117222651 118886859 120193308 120351042 121306209 123290076 123451874 124399548 124562802 125386846 126331218 127241681 128032002 128200023 129353679 130209417 132512562 133564249 134144556 135031988 136049004 137128758 137273292 139303962 140225526 140409549 142402941 143838422 143990028 145132806 145323269 146225898 147193254 147386421 147677124 149006052 149370669 150714837 156296868 157474044 158515812 158723838 159942276 159983551 160152174 161423223 161741612 162308286 163596447 169321607 170373294 170596881 170933364 171725463 172289978 172471572 173612556 173840394 180526563 183478932 184935114 185177811 186599322 186844203 187212732 188080269 189496827 189870588 196515228 198768843 199160892 200953116 201216834 202547982 202813793 204073506 205693137 210338289 215230964 215757633 215985042 217699209 218128596 218414854 219771468 220789881 221515686 223509078 227462508 228967284 229267766 234445302 236305979 237773718 238085757 240228261 240702084 242612418 246903748 249125604 250773692 252662436 254483362 256064004 256400046 258434967 258707358 260418834 260760591 265025124 267128498 274257516 277402671 278607924 279898983 280451052 280819098 283047821 284805882 287676844 290265612 290646538 292451796 294386508 294772842 297112309 298741338 301429674 301825251 303821973 317447676 319967102 320304348 322846446 324616572 327192894 327622281 332273529 335263617 338643214 340746588 341193762 343450926 343901649 344579956 347680788 351667953 361053126 363918627 369870228 370355622 373198644 373688406 376160538 376654187 378993654 381725043 384600069 390628251 397537686 400692747 402433668 405095964 405627586 408147012 411386274 420676578 421228647 431515266 431970084 435398418 435969807 436829708 438853961 441579762 442159263 443031372 447018156 448112007 458535532 468890604 472611958 475547436 476171514 479950653 480456522 484269669 485224836 490789341 507964821 508966724 511790643 512800092 515176389 516869934 517414716 520837668 521521182 525660239 534256996 554805342 555533433 559797966 560532609 561638196 564240807 566095642 569611764 581293076 589545684 594224618 596306529 597482676 602859348 603014923 603650502 607643946 608441379 617079411 639934204 645692892 647272899 653097627 654385788 655244562 664547058 670527234 677286428 682387524 686901852 687803298 703335906 708917937 714257271 722106252 727837254 740711244 747376812 752321076 753308374 757987308 763450086 769200138 775304901 781256502 782281773 795075372 801385494 802437181 811255172 822772548 832208013 841353156 842457294 849143463 863030532 870796836 871939614 877707922 883159524 884318526 891336927 896224014 905475753 911465919 934949743 945223916 952343028 959901306 960913044 968539338 981578682 982866843 996820587 1015929642 1023581286 1030352778 1031704947 1033739868 1043042364 1051320478 1055003859 1091755881 1109610684 1111066866 1119595932 1119884857 1121065218 1128481614 1129962561 1132191284 1145175129 1188449236 1192613058 1202078241 1206029846 1207301004 1215287892 1216882758 1234158822 1263685941 1294545798 1306195254 1307909421 1310489124 1316561883 1326477789 1329094116 1341054468 1375606596 1406671812 1417835874 1419696551 1428514542 1439851959 1452809007 1455674508 1472368023 1506616748 1523894463 1526900172 1538400276 1545529167 1550609802 1562513004 1564563546 1576980717 1602770988 1604874362 1654141853 1664416026 1666600299 1681597827 1684914588 1692722421 1698286926 1743879228 1755415844 1768637052 1782673854 1792448028 1809044769 1810951506 1822931838 1825324137 1851238233 1869899486 1919802612 1937078676 1941818697 1959292881 1963157364 1965733686 1981334747 1993641174 2031859284 2047162572 2060705556 2063409894 2079786163 2102640956 2110007718 2126753811 2183511762 2222133732 2239769714 2242130436 2256963228 2259925122 2290350258 2325914703 2346845319 2385226116 2404156482 2407311543 2412059692 2433765516 2468317644 2527371882 2547430389 2589091596 2612390508 2615818842 2633123766 2636579309 2652955578 2674010781 2734397757 2804849229 2835671748 2839393102 2857029084 2879703918 2905618014 2944736046 2948600529 3047788926 3071977727 3091058334 3095114841 3101219604 3129127092 3153961434 3209748724 3275267643 3308283706 3328832052 3333200598 3359654571 3363195654 3385444842 3389887683 3396573852 3435525387 3565347708 3606234723 3618089538 3621903012 3645863676 3650648274 3679621673 3702476466 3739798972 3883637394 3918585762 3923728263 3931467372 3949685649 3962669494 3987282348 4126819788 4159572326 4220015436 4253507622 4259089653 4319555877 4358427021 4367023524 4479539428 4519850244 4571683389 4580700516 4651829406 4693690638 4730942151 4808312964 4814623086 4962425559 4999800897 5054743764 5078167263 5094860778 5231637684 5266247532 5273158618 5305911156 5348021562 5427134307 5468795514 5475972411 5609698458 5678786204 5759407836 5811236028 5825456091 5889472092 5897201058 5944004241 6095577852 6143955454 6182116668 6190229682 6239358489 6307922868 6380261433 6550535286 6616567412 6666401196 6719309142 6726391308 6770889684 6779775366 6833583107 6871050774 6977744109 7212469446 7221934629 7236179076 7301296548 7359243346 7404952932 7642291167 7767274788 7837171524 7839193999 7847456526 7899371298 7909737927 7925338988 8022032343 8319144652 8414547687 8507015244 8518179306 8639111754 8716854042 8845801587 9143366778 9215933181 9285344523 9303658812 9387381276 9461884302 9629246172 9924851118 9999601794 10078963713 10156334526 10169663049 10189721556 10306576161 10546317236 10696043124 10818704169 10854268614 10937591028 10951944822 11038865019 11219396916 11650912182 11771184789 11794402116 11849056947 11888008482 12287910908 12380459364 12478716978 12760522866 12777268959 12958667631 13101070572 13438618284 13559550732 13667166214 13715050167 13742101548 13869343229 13955488218 14192826453 14424938892 14443869258 14558503141 14718486692 14887276677 15284582334 15678387998 15694913052 15798742596 15819475854 16044064686 16281402921 16427917233 16829095374 17036358612 17278223508 17433708084 17691603174 17832012723 18286733556 18431866362 18456055163 18570689046 18718075467 18923768604 19140784299 19849702236 19999203588 20157927426 20312669052 20339326098 20500749321 20613152322 21503844089 21637408338 21665803887 21708537228 21903889644 22077730038 22926873501 23301824364 23517581997 23542369578 23698113894 23729213781 23776016964 24066097029 24957433956 25243643061 25521045732 25554537918 25757351711 25917335262 27334332428 27430100334 27647799543 27738686458 27910976436 28385652906 28887738516 29117006282 29774553354 30236891139 30508989147 30569164668 31356775996 31638951708 32088129372 32562805842 32855834466 33116595057 33658190748 35383206348 35547170841 35664025446 36863732724 36912110326 37141378092 37436150934 38281568598 38331806877 40315854852 40678652196 41001498642 41226304644 41608029687 42578479359 43007688178 43274816676 43331607774 43675509423 44155460076 44661830031 45853747002 47035163994 47084739156 47396227788 47458427562 47835081749 48132194058 48844208763 50487286122 51109075836 51514703422 51834670524 53496038169 54860200668 55295599086 55368165489 55477372916 56154226401 56771305812 58234012564 59549106708 60473782278 61017978294 61502247963 64511532267 64997411661 65125611684 65711668932 66233190114 70552745991 71094341682 71187641343 71328050892 73824220652 74872301868 75730929183 76563137196 76663613754 77272055133 82002997284 82943398629 83216059374 85156958718 86015376356 86663215548 87351018846 89323660062 90710673417 91707494004 94070327988 94916855124 95670163498 96264388116 97688417526 99349785171 100974572244 101909521987 103029406844 106992076338 110591198172 110736330978 112308452802 114995420631 120947564556 122035956588 123004495926 124824089061 129023064534 129994823322 131026528269 132466380228 133985490093 141105491982 142188683364 142375282686 143505245247 151461858366 153327227508 154544110266 160488114507 165886797258 166104496467 166432118748 168462679203 170313917436 174702037692 178647320124 180301461977 181421346834 184506743889 191340326996 193534596801 195376835052 198699570342 203819043974 211658237973 213562924029 213984152676 221472661956 224616905604 229990841262 231816165399 246008991852 248830195887 249648178122 258046129068 259989646644 262053056538 267970980186 282210983964 284750565372 287010490494 298049355513 302923716732 305728565961 309088220532 320976229014 331773594516 332208992934 334845572243 336925358406 360602923954 362842693668 369013487778 374472267183 387069193602 393079584807 397399140684 407638087948 423316475946 427125848058 430515735741 459981682524 463632330798 497660391774 498313489401 499296356244 524106113076 535941960372 540904385931 553520231667 574020980988 580603790403 596098711026 611457131922 634974713919 641952458028 664417985868 669691144486 673850716812 695448496197 721205847908 738026975556 748944534366 774138387204 786159169614 846632951892 854251696116 861031471482 917185697883 927264661596 995320783548 996626978802 1004536716729 1081808771862 1107040463334 1123416801549 1161207580806 1179238754421 1192197422052 1222914263844 1269949427838 1291547207223 1339382288972 1390896992394 1494940468203 1497889068732 1572318339228 1622713157793 1722062942964 1741811371209 1834371395766 1993253957604 2009073433458 2086345488591 2163617543724 2214080926668 2246833603098 2322415161612 2343919005701 2358477508842 2539898855676 2583094414446 2751557093649 2781793984788 2989880936406 3013610150187 3245426315586 3483622742418 3668742791532 3874641621669 4018146866916 4172690977182 4493667206196 4687838011402 4716955017684 4868139473379 5166188828892 5503114187298 5979761872812 6027220300374 6490852631172 6967245484836 7031757017103 7749283243338 8254671280947 8345381954364 9040830450561 9375676022804 9736278946758 11006228374596 12054440600748 14063514034206 14604418420137 15498566486676 16509342561894 18081660901122 19472557893516 21095271051309 27122491351683 28127028068412 29208836840274 33018685123788 36163321802244 42190542102618 54244982703366 58417673680548 63285813153927 84381084205236 108489965406732 126571626307854 189857439461781 253143252615708 379714878923562 759429757847124
- Sum of all divisors σ(n): 2660962927392000
- Sum of proper divisors (its aliquot sum) s(n): 1901533169544876
- 759429757847124 is an abundant number, because the sum of its proper divisors (1901533169544876) is greater than itself. Its abundance is 1142103411697752
Bases of 759429757847124
- Binary: 101011001010110010100001001111001011000110010101002
- Hexadecimal: 0x2B2B284F2C654
- Base-36: 7H717PXD90
Squares and roots of 759429757847124
- 759429757847124 squared (7594297578471242) is 576733557103741396655355071376
- 759429757847124 cubed (7594297578471243) is 437988625613604790480766741504064345116322624
-
The
square root of 759429757847124 is 27557753.1349550341 -
The
cube root of 759429757847124 is 91235.2227914255
Scales and comparisons
How big is 759429757847124?- 759,429,757,847,124 seconds is equal to 24,147,517 years, 11 weeks, 6 days, 9 hours, 5 minutes, 24 seconds.
-
To count from 1 to 759,429,757,847,124 would take you about sixty million, three hundred sixty-eight thousand, seven hundred ninety-three 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 759429757847124 cubic inches would be around 7602.9 feet tall.
Recreational maths with 759429757847124
- 759429757847124 backwards is 421748757924957
- 759429757847124 is a
Harshad number . - The number of decimal digits it has is: 15
- The sum of 759429757847124's digits is 81
- 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 759429757847124 - Facts about the integer". Numbermatics.com. 2024. Web. 21 June 2024.
APA style:
Numbermatics. (2024). Number 759429757847124 - Facts about the integer. Retrieved 21 June 2024, from https://numbermatics.com/n/759429757847124/
Chicago style:
Numbermatics. 2024. "Number 759429757847124 - Facts about the integer". https://numbermatics.com/n/759429757847124/
The information we have on file for 759429757847124 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 759429757847124, math, Factors of 759429757847124, curriculum, school, college, exams, university, Prime factorization of 759429757847124, STEM, science, technology, engineering, physics, economics, calculator, seven hundred fifty-nine trillion, four hundred twenty-nine billion, seven hundred fifty-seven million, eight hundred forty-seven thousand, one hundred twenty-four.