678442097056692276
678,442,097,056,692,276 is an even composite number composed of six prime numbers multiplied together.
678442097056692276 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one thousand, nine hundred twenty divisors.
Prime factorization of 678442097056692276:
22 × 39 × 7 × 11 × 613 × 793
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 7 × 11 × 61 × 61 × 61 × 79 × 79 × 79)See below for interesting mathematical facts about the number 678442097056692276 from the Numbermatics database.
Names of 678442097056692276
- Cardinal: 678442097056692276 can be written as Six hundred seventy-eight quadrillion, four hundred forty-two trillion, ninety-seven billion, fifty-six million, six hundred ninety-two thousand, two hundred seventy-six.
Scientific notation
- Scientific notation: 6.78442097056692276 × 1017
Factors of 678442097056692276
Divisors of 678442097056692276
- Number of divisors d(n): 1920
-
Complete list of divisors:
1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 54 61 63 66 77 79 81 84 99 108 122 126 132 154 158 162 183 189 198 231 237 243 244 252 297 308 316 324 366 378 396 427 462 474 486 549 553 567 594 671 693 711 729 732 756 854 869 891 924 948 972 1098 1106 1134 1188 1281 1342 1386 1422 1458 1647 1659 1701 1708 1738 1782 2013 2079 2133 2187 2196 2212 2268 2562 2607 2673 2684 2772 2844 2916 3294 3318 3402 3476 3564 3721 3843 4026 4158 4266 4374 4697 4819 4941 4977 5103 5124 5214 5346 6039 6083 6237 6241 6399 6561 6588 6636 6804 7442 7686 7821 8019 8052 8316 8532 8748 9394 9638 9882 9954 10206 10428 10692 11163 11529 12078 12166 12474 12482 12798 13122 14091 14457 14823 14884 14931 15309 15372 15642 16038 18117 18249 18711 18723 18788 19197 19276 19683 19764 19908 20412 22326 23058 23463 24057 24156 24332 24948 24964 25596 26047 26244 28182 28914 29646 29862 30618 31284 32076 33489 33733 34587 36234 36498 37422 37446 38394 39366 40931 42273 43371 43687 44469 44652 44793 45927 46116 46926 48114 52094 53009 54351 54747 56133 56169 56364 57591 57828 59292 59724 61236 66978 67466 68651 69174 70389 72171 72468 72996 74844 74892 76788 78141 78732 81862 84546 86742 87374 88938 89586 91854 93852 96228 100467 101199 103761 104188 106018 108702 109494 112266 112338 115182 122793 126819 130113 131061 133407 133956 134379 134932 137302 137781 138348 140778 144342 156282 159027 163053 163724 164241 168399 168507 169092 172773 173484 174748 177876 179172 183708 200934 202398 205953 207522 211167 212036 216513 217404 218988 224532 224676 226981 230364 234423 245586 253638 260226 262122 266814 268758 274604 275562 281556 286517 288684 293959 301401 303597 311283 312564 318054 326106 328482 336798 337014 345546 368379 371063 380457 380701 390339 393183 400221 401868 403137 404796 411906 415044 422334 433026 453962 468846 477081 480557 489159 491172 492723 493039 505197 505521 507276 518319 520452 524244 533628 537516 551124 573034 587918 602802 607194 617859 622566 633501 636108 652212 656964 673596 674028 680943 691092 703269 736758 742126 760914 761402 780678 786366 800442 806274 823812 844668 859551 866052 881877 904203 907924 910791 933849 937692 954162 961114 978318 985446 986078 1010394 1011042 1036638 1105137 1113189 1141371 1142103 1146068 1171017 1175836 1179549 1200663 1205604 1209411 1214388 1235718 1245132 1267002 1361886 1406538 1431243 1441671 1467477 1473516 1478169 1479117 1484252 1515591 1516563 1521828 1522804 1554957 1561356 1572732 1588867 1600884 1612548 1719102 1763754 1808406 1821582 1853577 1867698 1900503 1908324 1922228 1956636 1970892 1972156 2020788 2022084 2042829 2057713 2073276 2109807 2210274 2226378 2282742 2284206 2342034 2359098 2401326 2418822 2471436 2496791 2534004 2578653 2645631 2664907 2712609 2723772 2732373 2801547 2813076 2862486 2883342 2934954 2956338 2958234 3031182 3033126 3109914 3177734 3233549 3315411 3339567 3424113 3426309 3438204 3451273 3513051 3527508 3538647 3616812 3628233 3643164 3707154 3735396 3801006 4085658 4115426 4187711 4219614 4293729 4325013 4402431 4420548 4434507 4437351 4452756 4549689 4565484 4568412 4684068 4718196 4766601 4802652 4837644 4993582 5157306 5291262 5329814 5423429 5425218 5464746 5560731 5603094 5701509 5724972 5766684 5869908 5912676 5916468 6062364 6066252 6128487 6173139 6219828 6329421 6355468 6467098 6630822 6679134 6848226 6852618 6902546 7026102 7077294 7256466 7414308 7490373 7602012 7735959 7936893 7994721 8137827 8171316 8197119 8230852 8375422 8404641 8439228 8587458 8650026 8804862 8869014 8874702 9099378 9533202 9700647 9946233 9987164 10018701 10272339 10278927 10314612 10353819 10539153 10582524 10615941 10659628 10846858 10850436 10884699 10929492 11121462 11206188 11403018 12256974 12346278 12563133 12658842 12881187 12934196 12975039 13207293 13261644 13303521 13312053 13358268 13649067 13696452 13705236 13805092 14052204 14154588 14299803 14512932 14980746 15471918 15873786 15989442 16270287 16275654 16394238 16682193 16750844 16809282 17104527 17174916 17300052 17477537 17609724 17738028 17749404 17931499 18198756 18385461 18519417 18988263 19066404 19401294 19892466 20037402 20544678 20557854 20707638 21078306 21231882 21693716 21769398 22242924 22471119 22634843 22806036 23207877 23222761 23810679 23984163 24413481 24513948 24591357 24692556 25126266 25317684 25762374 25950078 26414586 26607042 26624106 27298134 28599606 29101941 29313977 29838699 29961492 30056103 30075379 30817017 30836781 30943836 31061457 31617459 31747572 31847823 31978884 32540574 32551308 32788476 33364386 33618564 34209054 34955074 35862998 36770922 37038834 37689399 37964003 37976526 38643561 38802588 38925117 39784932 39910563 39936159 40074804 40947201 41089356 41115708 41415276 42156612 42463764 42899409 43538796 44942238 45269686 46415754 46445522 47621358 47968326 48810861 48826962 49182714 50046579 50252532 51524748 51900156 52432611 52829172 53214084 53248212 53794497 54596268 55156383 55558251 56964789 57199212 58203882 58627954 59677398 60112206 60150758 61634034 61673562 62122914 63234918 63695646 65081148 66728772 67413357 67904529 68418108 69623631 69668283 69910148 71432037 71725996 71952489 73240443 73541844 73774071 74077668 75378798 75928006 75953052 77287122 77850234 79821126 79872318 81894402 85798818 87305823 87941931 89516097 89884476 90168309 90226137 90539372 92451051 92510343 92831508 92891044 93184371 94852377 95242716 95543469 95936652 97621722 97653924 98365428 100093158 104865222 107588994 110312766 111116502 113068197 113892009 113929578 115930683 116407764 116775351 117255908 119354796 119731689 119808477 120224412 120301516 122841603 123268068 123347124 124245828 125520493 126469836 127391292 128698227 134826714 135809058 139247262 139336566 142864074 143904978 146432583 146480886 147548142 150139737 150757596 151856012 154574244 155700468 157297833 159642252 159744636 161383491 162559327 163788804 165469149 166674753 170894367 171597636 174611646 175883862 179032194 180336618 180452274 184902102 185020686 186368742 189704754 191086938 195243444 197246489 200186316 202240071 203713587 208870893 209004849 209730444 210527653 214296111 215177988 215857467 220625532 221322213 222233004 226136394 227784018 227859156 231861366 233550702 239463378 239616954 245683206 251040986 255450371 257396454 261917469 263825793 268548291 269653428 270504927 270678411 271618116 277531029 278494524 278673132 279553113 285728148 286630407 287809956 292865166 292961772 295096284 300279474 314595666 322766982 325118654 330829169 330938298 333349506 339204591 341676027 341788734 347792049 349223292 350326053 351767724 358064388 359425431 360673236 360904548 369804204 370041372 372737484 376561479 379409508 382173876 386094681 394492978 404480142 407427174 417741786 418009698 421055306 428592222 431714934 439297749 442644426 450419211 452272788 455568036 463722732 467101404 471893499 478926756 479233908 484150473 487677981 491366412 496407447 500024259 502081972 510900742 512683101 514792908 523834938 527651586 537096582 541009854 541356822 555062058 559106226 573260814 585730332 591739467 600558948 606720213 611140761 626612679 627014547 629191332 631582959 642888333 645533964 647572401 650237308 661658338 661876596 663966639 666699012 678409182 683352054 683577468 695584098 700652106 718850862 753122958 766351113 772189362 785752407 788985956 791477379 805644873 808960284 811514781 812035233 814854348 832593087 835483572 836019396 838659339 842110612 857184444 859891221 863429868 878595498 885288852 900838422 943786998 968300946 975355962 992487507 992814894 1000048518 1017613773 1021801484 1025028081 1025366202 1043376147 1047669876 1050978159 1055303172 1074193164 1078276293 1082019708 1082713644 1110124116 1118212452 1129684437 1146521628 1158284043 1183478934 1213440426 1222281522 1253225358 1254029094 1263165918 1285776666 1295144802 1317893247 1323316676 1327933278 1351257633 1356818364 1366704108 1380725423 1391168196 1401304212 1415680497 1416588421 1437701724 1452451419 1463033943 1489222341 1500072777 1506245916 1532702226 1544378724 1571504814 1582954758 1611289746 1623029562 1624070466 1665186174 1677318678 1719782442 1757190996 1775218401 1788152597 1801676844 1820160639 1833422283 1834598119 1879838037 1881043641 1887573996 1894748877 1928664999 1936601892 1942717203 1950711924 1984975014 1985629788 2000097036 2035227546 2050056162 2050732404 2086752294 2101956318 2156552586 2259368874 2299053339 2315804183 2316568086 2357257221 2366957868 2374432137 2426880852 2434544343 2436105699 2444563044 2497779261 2506450716 2508058188 2515978017 2526331836 2571553332 2590289604 2635786494 2655866556 2702515266 2761450846 2831360994 2833176842 2904902838 2926067886 2977462521 2978444682 3000145554 3052841319 3065404452 3075084243 3143009628 3152934477 3165909516 3222579492 3234828879 3246059124 3248140932 3330372348 3354637356 3389053311 3439564884 3474852129 3550436802 3576305194 3640321278 3666844566 3669196238 3759676074 3762087282 3789497754 3857329998 3885434406 3953679741 3969950028 4070455092 4100112324 4142176269 4173504588 4203912636 4247041491 4249765263 4313105172 4357354257 4389101829 4467667023 4500218331 4518737748 4598106678 4631608366 4633136172 4714514442 4748864274 4869088686 4872211398 4995558522 5031956034 5271572988 5325655203 5364457791 5405030532 5460481917 5500266849 5503794357 5522901692 5639514111 5643130923 5662721988 5666353684 5684246631 5785994997 5809805676 5828151609 5852135772 5954925042 5956889364 6000291108 6105682638 6150168486 6305868954 6469657758 6778106622 6897160017 6947412549 6949704258 7071771663 7100873604 7123296411 7152610388 7280642556 7303633029 7308317097 7333689132 7338392476 7493337783 7519352148 7524174564 7547934051 7578995508 7714659996 7770868812 7907359482 8284352538 8494082982 8499530526 8714708514 8778203658 8932387563 8935334046 9000436662 9158523957 9196213356 9225252729 9263216732 9429028884 9458803431 9497728548 9704486637 9738177372 9744422796 9916118947 9991117044 10063912068 10167159933 10424556387 10651310406 10728915582 10920963834 11000533698 11007588714 11279028222 11286261846 11368493262 11571989994 11656303218 11861039223 11909850084 12211365276 12300336972 12426528807 12611737908 12741124473 12749295789 12842186833 12939315516 13072062771 13167305487 13500654993 13556213244 13794320034 13894825098 13899408516 14143543326 14246592822 14607266058 14616634194 14986675566 15095868102 15582472631 15814718964 15976965609 16093373373 16381445751 16500800547 16511383071 16568705076 16929392769 16988165964 16999061052 17052739893 17429417028 17484454827 17556407316 17864775126 17870668092 18000873324 18317047914 18450505458 18917606862 19408973274 19832237894 20180579309 20334319866 20691480051 20842237647 20849112774 21215314989 21302620812 21369889233 21457831164 21841927668 21924951291 22001067396 22015177428 22558056444 22572523692 22643802153 22736986524 23143979988 23312606436 23722078446 24853057614 25482248946 25498591578 25684373666 26144125542 26334610974 26797162689 27001309986 27475571871 27588640068 27675758187 27789650196 28287086652 28493185644 29214532116 29233268388 29748356841 29973351132 30191736204 30501479799 31164945262 31273669161 31953931218 32186746746 32762891502 33001601094 33022766142 33858785538 34105479786 34968909654 35583117669 35729550252 36634095828 36901010916 37279586421 37835213724 38223373419 38247887367 38526560499 38817946548 39216188313 39501916461 39664475788 40361158618 40501964979 40668639732 41382960102 41684475294 41698225548 42430629978 42739778466 43849902582 45287604306 46747417893 47444156892 47930896827 48280120119 49144337253 49502401641 49534149213 49706115228 50788178307 50964497892 50997183156 51158219679 51368747332 52288251084 52453364481 52669221948 53594325378 54002619972 54951143742 55351516374 59496713682 60541737927 61002959598 62074440153 62329890524 62526712941 62547338322 63645944967 63907862436 64109667699 64373493492 65525783004 65774853873 66003202188 66045532284 67717571076 67931406459 68210959572 69937819308 71166235338 74559172842 76446746838 76495774734 77053120998 78432376626 79003832922 80391488067 80722317236 81003929958 82426715613 82765920204 83027274561 83368950588 84861259956 85479556932 87699805164 89245070523 90575208612 91504439397 93494835786 95861793654 96560240238 98288674506 99004803282 99068298426 101576356614 102316439358 104906728962 106749353007 107188650756 109077308417 109902287484 110703032748 111838759263 111910485259 114670120257 114743662101 115579681497 117648564939 118505749383 118993427364 121083475854 122005919196 124148880306 125053425882 125094676644 127291889934 128219335398 131549707746 135862812918 140242253679 141264055163 142332470676 143792690481 144840360357 148507204923 148602447639 149118345684 152364534921 152893493676 152991549468 153474659037 154106241996 156864753252 158007665844 160782976134 162007859916 164853431226 166054549122 178490141046 181625213781 183008878794 186223320459 186989671572 187580138823 191723587308 192329003097 193120480476 196577349012 197324561619 198009606564 198136596852 203152713228 204632878716 209813457924 213498706014 218154616834 223677518526 223820970518 229340240514 229487324202 231159362994 235297129878 237011498766 241174464201 242166951708 248297760612 249081823683 250106851764 254583779868 256438670796 263099415492 267735211569 271725625836 274513318191 280484507358 282528110326 287585380962 289680720714 297014409846 297204895278 304729069842 306949318074 321565952268 327231925251 329706862452 332109098244 335516277789 335731455777 344010360771 344230986303 346739044491 352945694817 355517248149 356980282092 363250427562 366017757588 372446640918 375160277646 384658006194 394649123238 420726761037 423792165489 426997412028 431378071443 434521081071 436309233668 445521614769 445807342917 447355037052 447641941036 457093604763 458680481028 458974648404 460423977111 462318725988 470594259756 474022997532 482348928402 498163647366 535470423138 544875641343 549026636382 558669961377 560969014716 562740416469 565056220652 575170761924 576987009291 579361441428 591973684857 594028819692 594409790556 609458139684 613898636148 654463850502 671032555578 671462911554 688020721542 688461972606 693478088982 705891389634 711034496298 723523392603 726500855124 744893281836 747245471049 750320555292 769316012388 783373396813 789298246476 803205634707 823539954573 841453522074 847584330978 862756142886 869042162142 891043229538 891614685834 914187209526 920847954222 964697856804 981695775753 996327294732 1006548833367 1007194367331 1032692958909 1040217133473 1066551744447 1070940846276 1089751282686 1098053272764 1117339922754 1125480832938 1153974018582 1183947369714 1231015337849 1262180283111 1271376496467 1294134214329 1303563243213 1308927701004 1337422028751 1342065111156 1342925823108 1376041443084 1376923945212 1381271931333 1386956177964 1411782779268 1422068992596 1447046785206 1494490942098 1566746793626 1606411269414 1634626924029 1647079909146 1676009884131 1682907044148 1688221249407 1695168661956 1725512285772 1738084324284 1782086459076 1783229371668 1828374419052 1841695908444 1963391551506 2013097666734 2014388734662 2065385917818 2080434266946 2133103488894 2170570177809 2179502565372 2234679845508 2250961665876 2307948037164 2350120190439 2367894739428 2409616904121 2462030675698 2470619863719 2524360566222 2542752992934 2588268428658 2607126486426 2674844057502 2762543862666 2894093570412 2945087327259 2988981884196 3019646500101 3021583101993 3098078876727 3120651400419 3133493587252 3199655233341 3212822538828 3269253848058 3294159818292 3352019768262 3376442498814 3693046013547 3786540849333 3814129489401 3882402642987 3910689729639 3926783103012 4012266086253 4026195333468 4028777469324 4130771835636 4143815793999 4160868533892 4266206977788 4341140355618 4700240380878 4819233808242 4903880772087 4924061351396 4941239727438 5028029652393 5048721132444 5064663748221 5085505985868 5176536857316 5214252972852 5349688115004 5525087725332 5890174654518 6039293000202 6043166203986 6196157753454 6241302800838 6399310466682 6511710533427 6538507696116 6704039536524 6752884997628 7050360571317 7228850712363 7386092027094 7573081698666 7628258978802 7764805285974 7821379459278 8024532172506 8287631587998 8617107364943 8682280711236 8835261981777 9058939500303 9064749305979 9294236630181 9361954201257 9400480761756 9638467616484 9807761544174 9882479454876 10056059304786 10129327496442 11079138040641 11359622547999 11442388468203 11732069188917 11780349309036 12036798258759 12078586000404 12086332407972 12392315506908 12482605601676 12798620933364 13023421066854 14100721142634 14457701424726 14711642316261 14772184054188 15146163397332 15193991244663 15256517957604 15529610571948 15642758918556 16049064345012 16575263175996 17234214729886 17670523963554 18117879000606 18129498611958 18588473260362 18723908402514 19615523088348 20112118609572 20258654992884 21151081713951 21686552137089 22158276081282 22719245095998 22884776936406 23464138377834 24073596517518 25851322094829 26046842133708 26505785945331 27176818500909 27194247917937 27882709890543 28085862603771 28201442285268 28915402849452 29423284632522 30387982489326 33237414121923 34078867643997 34327165404609 34468429459772 35196207566751 35341047927108 36110394776277 36235758001212 36258997223916 37176946520724 37447816805028 42302163427902 43373104274178 44134926948783 44316552162564 45438490191996 45581973733989 45769553872812 46928276755668 48147193035036 51702644189658 53011571890662 54353637001818 54388495835874 55765419781086 56171725207542 58846569265044 60775964978652 63453245141853 65059656411267 66474828243846 68157735287994 68654330809218 70392415133502 72220789552554 77553966284487 79517357835993 81582743753811 84257587811313 84604326855804 86746208548356 88269853897566 91163947467978 99712242365769 102236602931991 102981496213827 103405288379316 106023143781324 108707274003636 108776991671748 111530839562172 112343450415084 126906490283706 130119312822534 132404780846349 132949656487692 136315470575988 137308661618436 140784830267004 144441579105108 155107932568974 159034715671986 163165487507622 168515175622626 176539707795132 182327894935956 190359735425559 195178969233801 199424484731538 204473205863982 205962992427654 232661898853461 238552073507979 244748231261433 252772763433939 253812980567412 260238625645068 264809561692698 299136727097307 306709808795973 308944488641481 310215865137948 318069431343972 326330975015244 337030351245252 380719470851118 390357938467602 397214342539047 398848969463076 408946411727964 411925984855308 465323797706922 477104147015958 489496462522866 505545526867878 529619123385396 571079206276677 598273454194614 613419617591946 617888977282962 697985696560383 715656220523937 734244693784299 761438941702236 780715876935204 794428685078094 897410181291921 926833465924443 930647595413844 954208294031916 978992925045732 1011091053735756 1142158412553354 1196546908389228 1226839235183892 1235777954565924 1395971393120766 1431312441047874 1468489387568598 1588857370156188 1713237618830031 1794820362583842 1853666931848886 2093957089681149 2146968661571811 2202734081352897 2284316825106708 2692230543875763 2780500397773329 2791942786241532 2862624882095748 2936978775137196 3426475237660062 3589640725167684 3707333863697772 4187914179362298 4293937323143622 4405468162705794 5139712856490093 5384461087751526 5561000795546658 6281871269043447 6852950475320124 8076691631627289 8375828358724596 8587874646287244 8810936325411588 10279425712980186 10768922175503052 11122001591093316 12563742538086894 15419138569470279 16153383263254578 18845613807130341 20558851425960372 24230074894881867 25127485076173788 30838277138940558 32306766526509156 37691227614260682 48460149789763734 56536841421391023 61676554277881116 75382455228521364 96920299579527468 113073682842782046 169610524264173069 226147365685564092 339221048528346138 678442097056692276
- Sum of all divisors σ(n): 2286263481025413120
- Sum of proper divisors (its aliquot sum) s(n): 1607821383968720844
- 678442097056692276 is an abundant number, because the sum of its proper divisors (1607821383968720844) is greater than itself. Its abundance is 929379286912028568
Bases of 678442097056692276
- Binary: 1001011010100100111101111110001000111011110000111000001101002
- Hexadecimal: 0x96A4F7E23BC3834
- Base-36: 55K7NGPFPB90
Squares and roots of 678442097056692276
- 678442097056692276 squared (6784420970566922762) is 460283679058682262229499558158060176
- 678442097056692276 cubed (6784420970566922763) is 312275824461541909415175810503946967550603871122400576
-
The
square root of 678442097056692276 is 823675966.0550332435 -
The
cube root of 678442097056692276 is 878693.8685862831
Scales and comparisons
How big is 678442097056692276?- 678,442,097,056,692,276 seconds is equal to 21,572,360,127 years, 10 weeks, 6 days, 7 hours, 24 minutes, 36 seconds.
-
To count from 1 to 678,442,097,056,692,276 would take you about sixty-four billion, seven hundred seventeen million, eighty thousand, three hundred eighty-one 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 678442097056692276 cubic inches would be around 73224.5 feet tall.
Recreational maths with 678442097056692276
- 678442097056692276 backwards is 672296650790244876
- The number of decimal digits it has is: 18
- The sum of 678442097056692276's digits is 90
- More coming soon!
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 678442097056692276 - Facts about the integer". Numbermatics.com. 2024. Web. 28 May 2024.
APA style:
Numbermatics. (2024). Number 678442097056692276 - Facts about the integer. Retrieved 28 May 2024, from https://numbermatics.com/n/678442097056692276/
Chicago style:
Numbermatics. 2024. "Number 678442097056692276 - Facts about the integer". https://numbermatics.com/n/678442097056692276/
The information we have on file for 678442097056692276 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 678442097056692276, math, Factors of 678442097056692276, curriculum, school, college, exams, university, Prime factorization of 678442097056692276, STEM, science, technology, engineering, physics, economics, calculator, six hundred seventy-eight quadrillion, four hundred forty-two trillion, ninety-seven billion, fifty-six million, six hundred ninety-two thousand, two hundred seventy-six.