50993719977885696
50,993,719,977,885,696 is an even composite number composed of four prime numbers multiplied together.
What does the number 50993719977885696 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 1980 divisors.
50993719977885696 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one thousand, nine hundred eighty divisors.
Prime factorization of 50993719977885696:
214 × 310 × 113 × 1992
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 11 × 11 × 11 × 199 × 199)See below for interesting mathematical facts about the number 50993719977885696 from the Numbermatics database.
Names of 50993719977885696
- Cardinal: 50993719977885696 can be written as Fifty quadrillion, nine hundred ninety-three trillion, seven hundred nineteen billion, nine hundred seventy-seven million, eight hundred eighty-five thousand, six hundred ninety-six.
Scientific notation
- Scientific notation: 5.0993719977885696 × 1016
Factors of 50993719977885696
Divisors of 50993719977885696
- Number of divisors d(n): 1980
-
Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 81 88 96 99 108 121 128 132 144 162 176 192 198 199 216 242 243 256 264 288 297 324 352 363 384 396 398 432 484 486 512 528 576 594 597 648 704 726 729 768 792 796 864 891 968 972 1024 1056 1089 1152 1188 1194 1296 1331 1408 1452 1458 1536 1584 1592 1728 1782 1791 1936 1944 2048 2112 2178 2187 2189 2304 2376 2388 2592 2662 2673 2816 2904 2916 3072 3168 3184 3267 3456 3564 3582 3872 3888 3993 4096 4224 4356 4374 4378 4608 4752 4776 5184 5324 5346 5373 5632 5808 5832 6144 6336 6368 6534 6561 6567 6912 7128 7164 7744 7776 7986 8019 8192 8448 8712 8748 8756 9216 9504 9552 9801 10368 10648 10692 10746 11264 11616 11664 11979 12288 12672 12736 13068 13122 13134 13824 14256 14328 15488 15552 15972 16038 16119 16384 16896 17424 17496 17512 18432 19008 19104 19602 19683 19701 20736 21296 21384 21492 22528 23232 23328 23958 24057 24079 24576 25344 25472 26136 26244 26268 27648 28512 28656 29403 30976 31104 31944 32076 32238 33792 34848 34992 35024 35937 36864 38016 38208 39204 39366 39402 39601 41472 42592 42768 42984 45056 46464 46656 47916 48114 48158 48357 49152 50688 50944 52272 52488 52536 55296 57024 57312 58806 59049 59103 61952 62208 63888 64152 64476 67584 69696 69984 70048 71874 72171 72237 73728 76032 76416 78408 78732 78804 79202 82944 85184 85536 85968 88209 90112 92928 93312 95832 96228 96316 96714 101376 101888 104544 104976 105072 107811 110592 114048 114624 117612 118098 118206 118803 123904 124416 127776 128304 128952 135168 139392 139968 140096 143748 144342 144474 145071 147456 152064 152832 156816 157464 157608 158404 165888 170368 171072 171936 176418 177309 180224 185856 186624 191664 192456 192632 193428 202752 203776 209088 209952 210144 215622 216513 216711 221184 228096 229248 235224 236196 236412 237606 247808 248832 255552 256608 257904 264627 264869 270336 278784 279936 280192 287496 288684 288948 290142 304128 305664 313632 314928 315216 316808 323433 331776 340736 342144 343872 352836 354618 356409 371712 373248 383328 384912 385264 386856 405504 407552 418176 419904 420288 431244 433026 433422 435213 435611 442368 456192 458496 470448 472392 472824 475212 495616 497664 511104 513216 515808 529254 529738 531927 540672 557568 559872 560384 574992 577368 577896 580284 608256 611328 627264 629856 630432 633616 646866 649539 650133 663552 681472 684288 687744 705672 709236 712818 743424 746496 766656 769824 770528 773712 793881 794607 811008 815104 836352 839808 840576 862488 866052 866844 870426 871222 912384 916992 940896 944784 945648 950424 970299 991232 995328 1022208 1026432 1031616 1058508 1059476 1063854 1069227 1115136 1119744 1120768 1149984 1154736 1155792 1160568 1216512 1222656 1254528 1259712 1260864 1267232 1293732 1299078 1300266 1305639 1306833 1327104 1362944 1368576 1375488 1411344 1418472 1425636 1486848 1492992 1533312 1539648 1541056 1547424 1587762 1589214 1595781 1622016 1630208 1672704 1679616 1681152 1724976 1732104 1733688 1740852 1742444 1824768 1833984 1881792 1889568 1891296 1900848 1940598 1950399 1982464 1990656 2044416 2052864 2063232 2117016 2118952 2127708 2138454 2230272 2239488 2241536 2299968 2309472 2311584 2321136 2381643 2383821 2433024 2445312 2509056 2519424 2521728 2534464 2587464 2598156 2600532 2611278 2613666 2725888 2737152 2750976 2822688 2836944 2851272 2910897 2973696 2985984 3066624 3079296 3082112 3094848 3175524 3178428 3191562 3207681 3260416 3345408 3359232 3362304 3449952 3464208 3467376 3481704 3484888 3649536 3667968 3763584 3779136 3782592 3801696 3881196 3900798 3916917 3920499 3981312 4088832 4105728 4126464 4234032 4237904 4255416 4276908 4460544 4478976 4483072 4599936 4618944 4623168 4642272 4763286 4767642 4787343 4791721 4866048 4890624 5018112 5038848 5043456 5068928 5174928 5196312 5201064 5222556 5227332 5451776 5474304 5501952 5645376 5673888 5702544 5821794 5851197 5947392 5971968 6133248 6158592 6164224 6189696 6351048 6356856 6383124 6415362 6690816 6718464 6724608 6899904 6928416 6934752 6963408 6969776 7144929 7151463 7299072 7335936 7527168 7558272 7565184 7603392 7762392 7801596 7833834 7840998 8177664 8211456 8252928 8468064 8475808 8510832 8553816 8732691 8921088 8957952 8966144 9199872 9237888 9246336 9284544 9526572 9535284 9574686 9583442 9623043 9781248 10036224 10077696 10086912 10137856 10349856 10392624 10402128 10445112 10454664 10903552 10948608 11003904 11290752 11347776 11405088 11643588 11702394 11750751 11761497 11943936 12266496 12317184 12328448 12379392 12702096 12713712 12766248 12830724 13381632 13436928 13449216 13799808 13856832 13869504 13926816 13939552 14289858 14302926 14362029 14375163 14598144 14671872 15054336 15116544 15130368 15206784 15524784 15603192 15667668 15681996 16355328 16422912 16505856 16936128 16951616 17021664 17107632 17465382 17553591 17842176 17915904 17932288 18399744 18475776 18492672 18569088 19053144 19070568 19149372 19166884 19246086 20072448 20155392 20173824 20275712 20699712 20785248 20804256 20890224 20909328 21454389 21807104 21897216 22007808 22581504 22695552 22810176 23287176 23404788 23501502 23522994 24532992 24634368 24656896 24758784 25404192 25427424 25532496 25661448 26198073 26763264 26873856 26898432 27599616 27713664 27739008 27853632 27879104 28579716 28605852 28724058 28750326 28869129 29343744 30108672 30233088 30260736 30413568 31049568 31206384 31335336 31363992 32710656 32845824 33011712 33872256 33903232 34043328 34215264 34930764 35107182 35284491 35831808 35864576 36799488 36951552 36985344 37138176 38106288 38141136 38298744 38333768 38492172 40144896 40310784 40347648 40551424 41399424 41570496 41608512 41780448 41818656 42908778 43086087 43125489 43794432 44015616 45163008 45391104 45620352 46574352 46809576 47003004 47045988 49065984 49268736 49313792 49517568 50808384 50854848 51064992 51322896 52396146 52660773 52708931 53526528 53747712 53796864 55199232 55427328 55478016 55707264 55758208 57159432 57211704 57448116 57500652 57738258 60217344 60466176 60521472 60827136 62099136 62412768 62670672 62727984 64363167 65421312 65691648 66023424 67744512 67806464 68086656 68430528 69861528 70214364 70568982 73598976 73903104 73970688 74276352 76212576 76282272 76597488 76667536 76984344 78594219 80289792 80621568 80695296 81102848 82798848 83140992 83217024 83560896 83637312 85817556 86172174 86250978 86607387 88031232 90326016 90782208 91240704 93148704 93619152 94006008 94091976 98131968 98537472 98627584 99035136 101616768 101709696 102129984 102645792 104792292 105321546 105417862 105853473 107495424 107593728 110398464 110854656 110956032 111414528 111516416 114318864 114423408 114896232 115001304 115476516 120434688 120932352 121042944 121654272 124198272 124825536 125341344 125455968 128726334 129258261 129376467 131383296 132046848 135489024 135612928 136173312 136861056 139723056 140428728 141137964 147197952 147806208 147941376 148552704 152425152 152564544 153194976 153335072 153968688 157188438 157982319 158126793 160579584 161243136 161390592 162205696 165597696 166281984 166434048 167121792 167274624 171635112 172344348 172501956 173214774 180652032 181564416 182481408 186297408 187238304 188012016 188183952 193089501 196263936 197074944 197255168 198070272 203233536 203419392 204259968 205291584 209584584 210643092 210835724 211706946 220796928 221709312 221912064 222829056 223032832 228637728 228846816 229792464 230002608 230953032 240869376 241864704 242085888 243308544 248396544 249651072 250682688 250911936 257452668 258516522 258752934 259822161 264093696 270978048 271225856 272346624 273722112 279446112 280857456 282275928 294395904 295612416 295882752 297105408 304850304 305129088 306389952 306670144 307937376 314376876 315964638 316253586 317560419 322486272 322781184 324411392 331195392 332563968 332868096 334243584 334549248 343270224 344688696 345003912 346429548 361304064 363128832 364962816 372594816 374476608 376024032 376367904 386179002 388129401 394149888 394510336 396140544 406467072 406838784 408519936 410583168 419169168 421286184 421671448 423413892 441593856 443418624 443824128 445658112 446065664 457275456 457693632 459584928 460005216 461906064 473946957 474380379 481738752 483729408 484171776 486617088 496793088 499302144 501365376 501823872 514905336 517033044 517505868 519644322 541956096 542451712 544693248 547444224 558892224 561714912 564551856 579268503 588791808 591224832 591765504 594210816 609700608 610258176 612779904 613340288 615874752 628753752 631929276 632507172 635120838 648822784 662390784 665127936 665736192 668487168 669098496 686540448 689377392 690007824 692859096 722608128 726257664 729925632 745189632 748953216 752048064 752735808 772358004 776258802 779466483 792281088 812934144 813677568 817039872 821166336 838338336 842572368 843342896 846827784 883187712 886837248 887648256 891316224 892131328 914550912 915387264 919169856 920010432 923812128 947893914 948760758 952681257 967458816 968343552 973234176 993586176 998604288 1002730752 1003647744 1029810672 1034066088 1035011736 1039288644 1083912192 1084903424 1089386496 1094888448 1117784448 1123429824 1129103712 1158537006 1164388203 1182449664 1183531008 1188421632 1219401216 1220516352 1225559808 1226680576 1231749504 1257507504 1263858552 1265014344 1270241676 1324781568 1330255872 1331472384 1336974336 1338196992 1373080896 1378754784 1380015648 1385718192 1421840871 1423141137 1445216256 1452515328 1459851264 1490379264 1497906432 1504096128 1505471616 1544716008 1552517604 1558932966 1625868288 1627355136 1634079744 1642332672 1676676672 1685144736 1686685792 1693655568 1737805509 1766375424 1773674496 1775296512 1782632448 1784262656 1829101824 1830774528 1838339712 1840020864 1847624256 1895787828 1897521516 1905362514 1946468352 1987172352 1997208576 2005461504 2007295488 2059621344 2068132176 2070023472 2078577288 2167824384 2169806848 2178772992 2189776896 2235568896 2246859648 2258207424 2317074012 2328776406 2338399449 2376843264 2438802432 2441032704 2451119616 2453361152 2463499008 2515015008 2527717104 2530028688 2540483352 2649563136 2660511744 2662944768 2673948672 2676393984 2746161792 2757509568 2760031296 2771436384 2843681742 2846282274 2858043771 2905030656 2919702528 2980758528 2995812864 3008192256 3010943232 3089432016 3105035208 3117865932 3251736576 3254710272 3268159488 3284665344 3353353344 3370289472 3373371584 3387311136 3475611018 3493164609 3547348992 3550593024 3565264896 3568525312 3658203648 3661549056 3676679424 3680041728 3695248512 3791575656 3795043032 3810725028 3974344704 3994417152 4010923008 4014590976 4119242688 4136264352 4140046944 4157154576 4269423411 4335648768 4339613696 4357545984 4379553792 4471137792 4493719296 4516414848 4634148024 4657552812 4676798898 4877604864 4882065408 4902239232 4906722304 4926998016 5030030016 5055434208 5060057376 5080966704 5213416527 5299126272 5321023488 5325889536 5347897344 5352787968 5492323584 5515019136 5520062592 5542872768 5687363484 5692564548 5716087542 5839405056 5961517056 5991625728 6016384512 6021886464 6178864032 6210070416 6235731864 6503473152 6509420544 6536318976 6569330688 6706706688 6740578944 6746743168 6774622272 6951222036 6986329218 7130529792 7137050624 7316407296 7323098112 7353358848 7360083456 7390497024 7583151312 7590086064 7621450056 7948689408 7988834304 8021846016 8029181952 8238485376 8272528704 8280093888 8314309152 8538846822 8574131313 8715091968 8759107584 8942275584 8987438592 9032829696 9268296048 9315105624 9353597796 9755209728 9764130816 9804478464 9813444608 9853996032 10060060032 10110868416 10120114752 10161933408 10426833054 10479493827 10642046976 10651779072 10695794688 10705575936 10984647168 11030038272 11040125184 11085745536 11374726968 11385129096 11432175084 11923034112 11983251456 12032769024 12043772928 12357728064 12420140832 12471463728 12808270233 13006946304 13018841088 13072637952 13138661376 13413413376 13481157888 13493486336 13549244544 13902444072 13972658436 14632814592 14646196224 14706717696 14720166912 14780994048 15166302624 15180172128 15242900112 15640249581 15897378816 15977668608 16043692032 16058363904 16476970752 16545057408 16560187776 16628618304 17077693644 17148262626 17518215168 17884551168 17974877184 18065659392 18536592096 18630211248 18707195592 19510419456 19528261632 19608956928 19626889216 19707992064 20120120064 20221736832 20240229504 20323866816 20853666108 20958987654 21391589376 21411151872 21969294336 22060076544 22080250368 22171491072 22749453936 22770258192 22864350168 23846068224 23966502912 24065538048 24087545856 24715456128 24840281664 24942927456 25616540466 25722393939 26145275904 26277322752 26826826752 26962315776 26986972672 27098489088 27804888144 27945316872 29265629184 29292392448 29413435392 29440333824 29561988096 30332605248 30360344256 30485800224 31280499162 31438481481 31955337216 32087384064 32116727808 32953941504 33090114816 33120375552 33257236608 34155387288 34296525252 35769102336 35949754368 36131318784 37073184192 37260422496 37414391184 38424810699 39020838912 39056523264 39217913856 39253778432 39415984128 40240240128 40443473664 40480459008 40647733632 41707332216 41917975308 43938588672 44120153088 44160500736 44342982144 45498907872 45540516384 45728700336 47692136448 47933005824 48131076096 48175091712 49430912256 49680563328 49885854912 51233080932 51444787878 52554645504 53653653504 53924631552 53973945344 54196978176 55609776288 55890633744 58531258368 58584784896 58826870784 58880667648 59123976192 60665210496 60720688512 60971600448 62560998324 62876962962 64174768128 64233455616 65907883008 66180229632 66240751104 66514473216 68310774576 68593050504 71538204672 71899508736 72262637568 74146368384 74520844992 74828782368 76849621398 78435827712 78507556864 78831968256 80480480256 80886947328 80960918016 81295467264 83414664432 83835950616 87877177344 88240306176 88321001472 88685964288 90997815744 91081032768 91457400672 94315444443 95866011648 96262152192 96350183424 98861824512 99361126656 99771709824 102466161864 102889575756 107307307008 107849263104 107947890688 108393956352 111219552576 111781267488 115274432097 117062516736 117169569792 117653741568 117761335296 118247952384 121330420992 121441377024 121943200896 125121996648 125753925924 131815766016 132360459264 132481502208 133028946432 136621549152 137186101008 143076409344 143799017472 144525275136 148292736768 149041689984 149657564736 153699242796 157663936512 160960960512 161773894656 161921836032 162590934528 166829328864 167671901232 175754354688 176480612352 176642002944 177371928576 181995631488 182162065536 182914801344 188630888886 192524304384 192700366848 197723649024 198722253312 199543419648 204932323728 205779151512 214614614016 215698526208 215895781376 216787912704 222439105152 223562534976 230548864194 235307483136 235522670592 236495904768 242660841984 242882754048 243886401792 250243993296 251507851848 263631532032 264720918528 264963004416 266057892864 273243098304 274372202016 282946333329 287598034944 289050550272 296585473536 298083379968 299315129472 307398485592 321921921024 323547789312 323843672064 325181869056 333658657728 335343802464 345823296291 351508709376 352961224704 353284005888 354743857152 363991262976 364324131072 365829602688 377261777772 395447298048 397444506624 399086839296 409864647456 411558303024 429229228032 431397052416 431791562752 433575825408 444878210304 447125069952 461097728388 472991809536 485321683968 485765508096 487772803584 500487986592 503015703696 527263064064 529441837056 529926008832 532115785728 546486196608 548744404032 565892666658 578101100544 593170947072 596166759936 598630258944 614796971184 643843842048 647095578624 647687344128 650363738112 667317315456 670687604928 691646592582 705922449408 706568011776 709487714304 727982525952 728648262144 731659205376 754523555544 790894596096 794889013248 798173678592 819729294912 823116606048 862794104832 863583125504 867151650816 889756420608 894250139904 922195456776 970643367936 971531016192 975545607168 1000975973184 1006031407392 1037469888873 1054526128128 1058883674112 1059852017664 1064231571456 1092972393216 1097488808064 1131785333316 1186341894144 1192333519872 1197260517888 1229593942368 1287687684096 1294191157248 1295374688256 1300727476224 1334634630912 1341375209856 1383293185164 1418975428608 1455965051904 1457296524288 1463318410752 1509047111088 1581789192192 1589778026496 1596347357184 1639458589824 1646233212096 1734303301632 1779512841216 1788500279808 1844390913552 1941286735872 1943062032384 1951091214336 2001951946368 2012062814784 2074939777746 2117767348224 2119704035328 2128463142912 2185944786432 2194977616128 2263570666632 2372683788288 2384667039744 2394521035776 2459187884736 2588382314496 2590749376512 2601454952448 2669269261824 2682750419712 2766586370328 2911930103808 2914593048576 2926636821504 3018094222176 3112409666619 3163578384384 3179556052992 3192694714368 3278917179648 3292466424192 3559025682432 3577000559616 3688781827104 3882573471744 3886124064768 3902182428672 4003903892736 4024125629568 4149879555492 4256926285824 4371889572864 4389955232256 4527141333264 4745367576576 4769334079488 4789042071552 4918375769472 5202909904896 5338538523648 5365500839424 5533172740656 5823860207616 5829186097152 5853273643008 6036188444352 6224819333238 6359112105984 6385389428736 6557834359296 6584932848384 7118051364864 7154001119232 7377563654208 7765146943488 7772248129536 7804364857344 8007807785472 8048251259136 8299759110984 8743779145728 8779910464512 9054282666528 9490735153152 9538668158976 9578084143104 9836751538944 10677077047296 10731001678848 11066345481312 11647720415232 11658372194304 11706547286016 12072376888704 12449638666476 12770778857472 13115668718592 13169865696768 14236102729728 14308002238464 14755127308416 15608729714688 16015615570944 16096502518272 16599518221968 17487558291456 17559820929024 18108565333056 19077336317952 19156168286208 19673503077888 21354154094592 21462003357696 22132690962624 23295440830464 23316744388608 23413094572032 24144753777408 24899277332952 26231337437184 26339731393536 28472205459456 28616004476928 29510254616832 32031231141888 32193005036544 33199036443936 34975116582912 35119641858048 36217130666112 38312336572416 39347006155776 42708308189184 42924006715392 44265381925248 46826189144064 48289507554816 49798554665904 52462674874368 52679462787072 57232008953856 59020509233664 64062462283776 64386010073088 66398072887872 69950233165824 70239283716096 72434261332224 78694012311552 85416616378368 85848013430784 88530763850496 96579015109632 99597109331808 104925349748736 105358925574144 118041018467328 128124924567552 128772020146176 132796145775744 140478567432192 144868522664448 157388024623104 171696026861568 177061527700992 193158030219264 199194218663616 209850699497472 210717851148288 236082036934656 256249849135104 257544040292352 265592291551488 289737045328896 314776049246208 354123055401984 386316060438528 398388437327232 421435702296576 472164073869312 515088080584704 531184583102976 579474090657792 629552098492416 708246110803968 772632120877056 796776874654464 944328147738624 1062369166205952 1158948181315584 1416492221607936 1545264241754112 1593553749308928 1888656295477248 2124738332411904 2317896362631168 2832984443215872 3187107498617856 4249476664823808 4635792725262336 5665968886431744 6374214997235712 8498953329647616 12748429994471424 16997906659295232 25496859988942848 50993719977885696
- Sum of all divisors σ(n): 169111482345858024
- Sum of proper divisors (its aliquot sum) s(n): 118117762367972328
- 50993719977885696 is an abundant number, because the sum of its proper divisors (118117762367972328) is greater than itself. Its abundance is 67124042390086632
Bases of 50993719977885696
- Binary: 101101010010101010000100101001010000111011000000000000002
- Hexadecimal: 0xB52A84A50EC000
- Base-36: DY3RJK00000
Squares and roots of 50993719977885696
- 50993719977885696 squared (509937199778856962) is 2600359477183018748147282441404416
- 50993719977885696 cubed (509937199778856963) is 132602003021312106810066699343664755584440557633536
-
The
square root of 50993719977885696 is 225817891.1820002275 -
The
cube root of 50993719977885696 is 370827.7547194657
Scales and comparisons
How big is 50993719977885696?- 50,993,719,977,885,696 seconds is equal to 1,621,442,561 years, 18 weeks, 6 days, 15 hours, 21 minutes, 36 seconds.
-
To count from 1 to 50,993,719,977,885,696 would take you about four billion, eight hundred sixty-four million, three hundred twenty-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 50993719977885696 cubic inches would be around 30902.3 feet tall.
Recreational maths with 50993719977885696
- 50993719977885696 backwards is 69658877991739905
- 50993719977885696 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 50993719977885696's digits is 108
- More coming soon!
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 50993719977885696 - Facts about the integer". Numbermatics.com. 2024. Web. 26 June 2024.
APA style:
Numbermatics. (2024). Number 50993719977885696 - Facts about the integer. Retrieved 26 June 2024, from https://numbermatics.com/n/50993719977885696/
Chicago style:
Numbermatics. 2024. "Number 50993719977885696 - Facts about the integer". https://numbermatics.com/n/50993719977885696/
The information we have on file for 50993719977885696 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 50993719977885696, math, Factors of 50993719977885696, curriculum, school, college, exams, university, Prime factorization of 50993719977885696, STEM, science, technology, engineering, physics, economics, calculator, fifty quadrillion, nine hundred ninety-three trillion, seven hundred nineteen billion, nine hundred seventy-seven million, eight hundred eighty-five thousand, six hundred ninety-six.