688414447107075780
688,414,447,107,075,780 is an even composite number composed of nine prime numbers multiplied together.
688414447107075780 is an even composite number. It is composed of nine distinct prime numbers multiplied together. It has a total of one thousand, nine hundred twenty divisors.
Prime factorization of 688414447107075780:
22 × 34 × 5 × 7 × 13 × 29 × 281 × 1093 × 524287
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 13 × 29 × 281 × 1093 × 524287)See below for interesting mathematical facts about the number 688414447107075780 from the Numbermatics database.
Names of 688414447107075780
- Cardinal: 688414447107075780 can be written as Six hundred eighty-eight quadrillion, four hundred fourteen trillion, four hundred forty-seven billion, one hundred seven million, seventy-five thousand, seven hundred eighty.
Scientific notation
- Scientific notation: 6.8841444710707578 × 1017
Factors of 688414447107075780
Divisors of 688414447107075780
- Number of divisors d(n): 1920
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 26 27 28 29 30 35 36 39 42 45 52 54 58 60 63 65 70 78 81 84 87 90 91 105 108 116 117 126 130 135 140 145 156 162 174 180 182 189 195 203 210 234 252 260 261 270 273 281 290 315 324 348 351 364 377 378 390 405 406 420 435 455 468 522 540 546 562 567 580 585 609 630 702 754 756 780 783 810 812 819 843 870 910 945 1015 1044 1053 1092 1093 1124 1131 1134 1170 1218 1260 1305 1365 1404 1405 1508 1566 1620 1638 1686 1740 1755 1820 1827 1885 1890 1967 2030 2106 2186 2262 2268 2340 2349 2436 2457 2529 2610 2639 2730 2810 2835 3045 3132 3276 3279 3372 3393 3510 3653 3654 3770 3780 3915 3934 4060 4095 4212 4215 4372 4524 4698 4914 5058 5220 5265 5278 5460 5465 5481 5620 5655 5670 5901 6090 6558 6786 7020 7306 7308 7371 7540 7587 7651 7830 7868 7917 8149 8190 8430 9135 9396 9828 9835 9837 10116 10179 10530 10556 10930 10959 10962 11310 11340 11745 11802 12180 12285 12645 13116 13195 13572 14209 14612 14742 15174 15302 15660 15834 16298 16380 16395 16443 16860 16965 17703 18265 18270 19670 19674 20358 21060 21860 21918 21924 22620 22761 22953 23490 23604 23751 24447 24570 25290 25571 26390 27405 28418 29484 29505 29511 30348 30537 30604 31668 31697 32596 32790 32877 32886 33930 35406 36530 36540 36855 37935 38255 39340 39348 39585 40716 40745 42627 43836 45522 45906 46980 47502 48894 49140 49185 50580 50895 51142 52780 53109 54795 54810 56836 57043 59010 59022 61074 63394 65580 65754 65772 67860 68859 70812 71045 71253 73060 73341 73710 75870 76510 76713 79170 81490 82215 85254 88515 88533 91044 91812 95004 95091 97788 98370 98631 99463 101790 102284 105937 106218 109590 109620 113805 114086 114765 118020 118044 118755 122148 122235 126788 127855 127881 131508 137718 142090 142506 146682 147420 147555 151740 152685 153020 153426 158340 158485 159327 162980 164385 164430 170508 171129 177030 177066 190182 196740 197262 198926 203580 206577 211874 212436 213135 213759 219180 220023 221879 227610 228172 229530 230139 237510 244470 255710 255762 265545 275436 284180 285012 285215 285273 293364 295110 295893 298389 305370 306852 307133 316970 317811 318654 328770 328860 342258 344295 354060 354132 356265 366705 380364 383565 383643 394524 397852 412061 413154 423748 426270 427518 440046 442665 443758 455220 459060 460278 475020 475455 488940 493155 497315 511420 511524 513387 524287 529685 531090 570430 570546 590220 591786 596778 610740 614266 619731 633940 635622 637308 639405 657540 660069 665637 684516 688590 690417 712530 733410 741559 767130 767286 796635 824122 826308 852540 855036 855645 855819 880092 885330 887516 895167 920556 921399 950910 953433 986310 994630 1026774 1032885 1048574 1059370 1062180 1068795 1100115 1109395 1140860 1141092 1150695 1150929 1183572 1193556 1228532 1236183 1239462 1271244 1278810 1320138 1331274 1377180 1380834 1425060 1426365 1466820 1479465 1483118 1491945 1534260 1534572 1535665 1540161 1572861 1589055 1593270 1648244 1711290 1711638 1770660 1790334 1842798 1901820 1906866 1918215 1972620 1989260 1996911 2053548 2060305 2065770 2071251 2097148 2118740 2137590 2149931 2200230 2218790 2224677 2301390 2301858 2472366 2478924 2557620 2566935 2567457 2621435 2640276 2662548 2685501 2761668 2764197 2852730 2860299 2884427 2958930 2966236 2983890 3071330 3080322 3098655 3145722 3178110 3186540 3300345 3328185 3422580 3423276 3452085 3580668 3670009 3685596 3707795 3708549 3813732 3836430 3992729 3993822 4120610 4131540 4142502 4275180 4279095 4299862 4400460 4437580 4449354 4475835 4602780 4603716 4606995 4620483 4718583 4767165 4944732 5133870 5134914 5242870 5371002 5528394 5705460 5720598 5754645 5768854 5917860 5967780 5990733 6142660 6160644 6180915 6197310 6291444 6356220 6449793 6600690 6656370 6674031 6815731 6904170 7340018 7415590 7417098 7672860 7700805 7864305 7985458 7987644 8056503 8241220 8285004 8292591 8558190 8580897 8599724 8653281 8898708 8906857 8951670 9213990 9240966 9437166 9534330 9984555 10267740 10269828 10356255 10485740 10742004 10749655 11010027 11056788 11123385 11125647 11441196 11509290 11537708 11978187 11981466 12361830 12394620 12837285 12899586 13201380 13312740 13348062 13427505 13631462 13808340 13820985 14155749 14301495 14422135 14680036 14831180 14834196 15204323 15401610 15728610 15970916 16113006 16585182 17116380 17161794 17306562 17813714 17903340 17972199 18350045 18427980 18481932 18542745 18874332 19068660 19349379 19963645 19969110 20022093 20447193 20712510 21499310 22020054 22246770 22251294 23018580 23102415 23592915 23956374 23962932 24723660 24877773 25674570 25799172 25959843 26696124 26720571 26855010 27262924 27641970 27949103 28311498 28602990 28844270 29953665 30408646 30803220 31457220 32226012 32248965 33030081 33170364 33370155 33376941 34078655 34323588 34613124 35627428 35934561 35944398 36700090 37085490 38698758 39927290 39938220 40044186 40282515 40894386 41425020 41462955 42467247 42904485 42998620 43266405 44040108 44493540 44502588 44534285 45612969 46204830 47185830 47710117 47912748 49755546 51349140 51919686 53441142 53710020 55050135 55283940 55628235 55898206 56622996 57205980 57688540 58048137 59890935 59907330 60066279 60817292 61341579 62347999 64497930 66060162 66740310 66753882 68157310 70778745 71869122 71888796 73400180 74170980 76021615 77397516 77879529 79854580 80088372 80161713 80565030 81788772 82925910 83847309 84934494 85808970 86532810 89068570 89860995 91225938 92409660 94371660 95420234 96746895 99090243 99511092 100110465 102235965 103839372 106430261 106882284 107803683 110100270 111256470 111796412 115789141 116096274 119781870 119814660 120132558 122683158 124388865 124695998 128995860 129799215 132120324 133480620 133507764 133602855 136314620 136838907 139745515 141557490 143130351 143738244 147324647 152043230 155759058 160323426 161130060 165150405 165851820 166884705 167694618 169868988 171617940 173065620 174144411 178137140 179672805 179721990 182451876 184024737 187043997 190840468 193493790 197656199 198180486 200220930 204471930 212336235 212860522 215607366 220200540 222512940 228064845 231578282 232192548 233638587 238550585 239563740 240265116 240485139 245366316 248777730 249391996 251541927 259598430 267205710 273677814 279491030 283114980 286260702 290240685 294649294 297270729 300331395 304086460 306707895 311518116 311739995 319290783 320646852 323411049 330300810 333769410 335389236 347367423 348288822 359345610 359443980 368049474 374087994 386987580 389397645 395312398 396360972 400441860 400808565 408943860 410516721 419236545 424672470 425721044 429391053 431214732 441973941 456129690 463156564 467277174 477101170 480970278 495451215 497555460 503083854 519196860 532151305 534411420 539018415 547355628 552074211 558982060 561131991 572521404 573045691 578945705 580481370 589298588 592968597 594541458 600662790 613415790 623479990 638581566 646822098 660601620 667538820 684194535 694734846 696577644 715651755 718691220 721455417 736098948 736623235 748175988 754625781 778795290 790624796 801617130 810523987 821033442 838473090 849344940 858782106 870722055 883947882 912259380 920123685 934554348 935219985 954202340 957872349 961940556 988280995 990902430 1006167708 1031272529 1042102269 1064302610 1078036830 1104148422 1122263982 1146091382 1157891410 1160962740 1168192935 1185937194 1189082916 1201325580 1202425695 1226831580 1231550163 1246959980 1257709635 1277163132 1288173159 1293644196 1325921823 1368389070 1383593393 1389469692 1431303510 1442910834 1473246470 1486353645 1509251562 1557590580 1596453915 1603234260 1617055245 1621047974 1642066884 1676946180 1683395973 1717564212 1719137073 1736837115 1741444110 1767895764 1778905791 1840247370 1870439970 1915220411 1915744698 1976561990 1981804860 2052583605 2062545058 2084204538 2128605220 2146955265 2156073660 2208296844 2209869705 2244527964 2263877343 2292182764 2315782820 2336385870 2371874388 2404851390 2431571961 2463100326 2515419270 2576346318 2651843646 2736778140 2760371055 2767186786 2805659955 2862607020 2865228455 2873617047 2885821668 2946492940 2964842985 2972707290 3018503124 3093817587 3126306807 3192907830 3234110490 3242095948 3366791946 3438274146 3473674230 3482888220 3557811582 3607277085 3680494740 3740879940 3773128905 3830440822 3831489396 3864519477 3953123980 3977765469 4011319837 4052619935 4105167210 4125090116 4150780179 4168409076 4272414763 4293910530 4419739410 4527754686 4672771740 4789361745 4809702780 4863143922 4926200652 5030838540 5050187919 5152692636 5156362645 5157411219 5210511345 5303687292 5336717373 5520742110 5534373572 5611319910 5730456910 5745661233 5747234094 5929685970 5945414580 6157750815 6187635174 6252613614 6385815660 6440865795 6468220980 6629609115 6733583892 6876548292 6917966965 6947348460 7115623164 7214554170 7294715883 7449593983 7546257810 7660881644 7729038954 7955530938 8022639674 8105239870 8210334420 8301560358 8416979865 8544829526 8587821060 8595685365 8620851141 8839478820 8894528955 9055509372 9281452761 9378920421 9576102055 9578723490 9726287844 10100375838 10312725290 10314822438 10421022690 10673434746 11041484220 11222639820 11319386715 11460913820 11491322466 11494468188 11859371940 11933296407 12033959511 12157859805 12315501630 12375270348 12452340537 12505227228 12817244289 12881731590 13259218230 13406542877 13835933930 14368085235 14429108340 14589431766 14899187966 15092515620 15458077908 15469087935 15472233657 15631534035 15911061876 16010152119 16045279348 16210479740 16603120716 16618325039 16833959730 17089659052 17191370730 17236983699 17241702282 17789057910 18562905522 18757840842 19152204110 19157446980 19322597385 19888827345 20056599185 20200751676 20625450580 20629644876 20753900895 20842045380 21346869492 21362073815 21884147649 22348781949 22638773430 22982644932 23866592814 24067919022 24315719610 24631003260 24904681074 25250939595 25634488578 25763463180 25787056095 26518436460 26683586865 26813085754 27671867860 27844358283 28728306165 28736170470 29178863532 29798375932 29906903341 30938175870 30944467314 31263068070 32020304238 33236650078 33667919460 34382741460 34473967398 34483404564 35578115820 36101878533 36473579415 37125811044 37247969915 37357021611 37515681684 38304408220 38451732867 38645194770 39777654690 40113198370 40219628631 41507801790 42724147630 43104255705 43768295298 44697563898 45277546860 46407263805 46416700971 46894602105 47733185628 48135838044 48631439220 49809362148 49854975117 50501879190 51268977156 51574112190 51710951097 52147157881 53367173730 53626171508 55541391919 55688716566 57456612330 57472340940 59666482035 59813806682 60169797555 61876351740 61888934628 62261702685 62526136140 64040608476 64086221445 65652442947 66473300156 67032714385 67046345847 68947934796 72203757066 72947158830 74495939830 74714043222 76903465734 77290389540 77361168285 79555309380 80050760595 80226396740 80439257262 83015603580 83091625195 83533074849 85448295260 86184918495 86208511410 87536590596 89395127796 89720710023 92814527610 92833401942 93789204210 99709950234 101003758380 103148224380 103421902194 104294315762 106734347460 108305635599 109420738245 111082783838 111377433132 111743909745 112071064833 114913224660 115355198601 116328275273 119332964070 119627613364 120339595110 120658885893 124523405370 128172442890 131304885894 134065428770 134092691694 139221791415 144407514132 145894317660 148991879660 149428086444 149534516705 149564925351 153806931468 154722336570 155132853291 156441473643 160101521190 160878514524 161025839171 166183250390 166624175757 167066149698 172369836990 172417022820 179441420046 180509392665 185629055220 185666803884 186785108055 187578408420 192258664335 199419900468 201098143155 201139037541 206843804388 208588631524 216038225507 216611271198 218841476490 222165567676 223487819490 224142129666 230710397202 232083504855 232656550546 238665928140 240679190220 241317771786 249046810740 249274875585 256344885780 258554755485 260735789405 262609771788 268130857540 268185383388 269162130069 277706959595 278443582830 299069033410 299129850702 309444673140 310265706582 312882947286 320203042380 322051678342 324916906797 328262214735 332366500780 333248351514 334132299396 335231729235 344739673980 346065595803 348984825819 358882840092 361018785330 361976657679 373570216110 384517328670 388789743433 402196286310 402278075082 417665374245 432076451014 433222542396 437682952980 446975638980 448284259332 448603550115 448694776053 461420794404 464167009710 465313101092 469324420929 482635543572 483077517513 498549751170 499872527271 517109510970 521471578810 538324260138 541528177995 555413919190 556887165660 560355324165 576775993005 581641376365 598138066820 598259701404 603294429465 603417112623 620531413164 625765894572 644103356684 648114676521 649833813594 656524429470 666496703028 670463458470 692131191606 697969651638 722037570660 723953315358 747140432220 747824626755 769034657340 775664266455 777579486866 782207368215 804392572620 804556150164 805129195855 807486390207 833120878785 835330748490 864152902028 897207100230 897389552106 928334019420 938648841858 966155035026 997099502340 999745054542 1005695187705 1034219021940 1042943157620 1046954477457 1076648520276 1080191127535 1083056355990 1085929973037 1110827838380 1120710648330 1127180874197 1153551986010 1163282752730 1166369230299 1206588858930 1206834225246 1296229353042 1299667627188 1313048858940 1340926916940 1345810650345 1346084328159 1384262383212 1395939303276 1407973262787 1447906630716 1449232552539 1495649253510 1499617581813 1512267578549 1551328532910 1555158973732 1564414736430 1610258391710 1614972780414 1624584533985 1666241757570 1670661496980 1730327979015 1744924129095 1794414200460 1794779104212 1809883288395 1877297683716 1932310070052 1943948717165 1944344029563 1999490109084 2011390375410 2093335909223 2093908954914 2160382255070 2166112711980 2171859946074 2241421296660 2243473880265 2254361748394 2307103972020 2326565505460 2332738460598 2346622104645 2413177717860 2413668450492 2415387587565 2422459170621 2499362636355 2592458706084 2691621300690 2692168656318 2815946525574 2898465105078 2991298507020 2999235163626 3017085563115 3024535157098 3102657065820 3128829472860 3140863432371 3220516783420 3229945560828 3240573382605 3249169067970 3332483515140 3381542622591 3460655958030 3489848258190 3499107690897 3619766576790 3887897434330 3888688059126 4022780750820 4037431951035 4186671818446 4187817909828 4223919788361 4320764510140 4343719892148 4347697657617 4486947760530 4498852745439 4508723496788 4536802735647 4665476921196 4669749335959 4693244209290 4830775175130 4844918341242 4998725272710 5234772387285 5383242601380 5384337312636 5429649865185 5631893051148 5635904370985 5796930210156 5831846151495 5833032088689 5998470327252 6034171126230 6049070314196 6280007727669 6281726864742 6481146765210 6498338135940 6730421640795 6763085245182 6921311916060 6979696516380 6998215381794 7039866313935 7239533153580 7246162762695 7498087909065 7561337892745 7775794868660 7777376118252 8074863902070 8373343636892 8447839576722 8695395315234 8973895521060 8997705490878 9073605471294 9339498671918 9386488418580 9422590297113 9661550350260 9689836682484 9721720147815 9997450545420 10144627867773 10466679546115 10469544774570 10497323072691 10859299730370 11271808741970 11663692302990 11666064177378 12068342252460 12112295853105 12560015455338 12563453729484 12962293530420 13043092972851 13460843281590 13526170490364 13610408206941 13996430763588 14009248007877 14079732627870 14492325525390 14653351364561 14996175818130 15122675785490 15704317161855 16149727804140 16895679153444 16907713112955 17390790630468 17495538454485 17499096266067 17995410981756 18147210942588 18678997343836 18840023183007 18845180594226 19443440295630 20289255735546 20933359092230 20939089549140 20994646145382 21119598941805 21718599460740 21738488288085 22494263727195 22543617483940 22684013678235 23327384605980 23332128354756 23348746679795 24224591706210 25120030910676 26086185945702 26921686563180 27220816413882 28018496015754 28159465255740 28984651050780 29165160443445 29306702729122 29992351636260 30245351570980 30433883603319 31400038638345 31408634323710 31491969218073 32688245351713 33815426225910 34991076908970 34998192532134 37680046366014 37690361188452 38886880591260 40578511471092 40831224620823 41866718184460 41989292290764 42027744023631 42239197883610 43476976576170 43960054093683 44988527454390 45368027356470 46697493359590 47112951485565 48449183412420 50723139338865 52172371891404 52486615363455 54441632827764 56036992031508 56520069549021 58330320886890 58613405458244 60706741367467 60867767206638 62800077276690 62817268647420 62983938436146 65215464864255 65376490703426 67630852451820 68052041034705 69982153817940 69996385064268 70046240039385 73266756822805 75360092732028 81662449241646 84055488047262 84478395767220 86953953152340 87495481330335 87920108187366 89977054908780 90736054712940 91301650809957 93394986719180 94200115915035 94225902971130 98064736055139 101446278677730 104973230726910 113040139098042 116660641773780 121413482734934 121735534413276 122493673862469 125600154553380 125967876872292 126083232070893 130430929728510 130752981406852 131880162281049 136104082069410 140092480078770 146533513645610 152169418016595 157459846090365 163324898483292 163441226758565 168110976094524 169560208647063 174990962660670 175840216374732 182120224102401 182603301619914 188400231830070 188451805942260 196129472110278 202892557355460 204156123104115 209946461453820 210138720118155 219800270468415 226080278196084 242826965469868 244987347724938 252166464141786 260861859457020 263760324562098 272208164138820 280184960157540 282600347745105 293067027291220 294194208165417 303533706837335 304338836033190 314919692180730 326882453517130 339120417294126 349981925321340 364240448204802 365206603239828 376800463660140 378249696212679 392258944220556 395640486843147 408312246208230 420277440236310 424947189572269 439600540936830 456508254049785 489974695449876 490323680275695 504332928283572 527520649124196 546360672307203 565200695490210 588388416330834 607067413674670 608677672066380 612468369312345 629839384361460 630416160354465 653764907034260 659400811405245 678240834588252 728480896409604 756499392425358 791280973686294 816624492416460 840554880472620 847801043235315 849894379144538 879201081873660 882582624496251 910601120512005 913016508099570 980647360551390 1092721344614406 1130401390980420 1176776832661668 1186921460529441 1214134827349340 1224936738624690 1260832320708930 1274841568716807 1318801622810490 1470971040827085 1512998784850716 1582561947372588 1639082016921609 1695602086470630 1699788758289076 1765165248992502 1821202241024010 1826033016199140 1891248481063395 1961294721102780 1978202434215735 2124735947861345 2185442689228812 2373842921058882 2449873477249380 2521664641417860 2549683137433614 2637603245620980 2647747873488753 2731803361536015 2941942081654170 3278164033843218 3391204172941260 3530330497985004 3642404482048020 3782496962126790 3824524706150421 3956404868431470 4249471895722690 4412913122481255 4747685842117764 4917246050764827 5099366274867228 5295495746977506 5463606723072030 5883884163308340 5934607302647205 6374207843584035 6556328067686436 7564993924253580 7649049412300842 7912809736862940 8195410084608045 8498943791445380 8825826244962510 9834492101529654 10590991493955012 10927213446144060 11473574118451263 11869214605294410 12748415687168070 13238739367443765 15298098824601684 16390820169216090 17651652489925020 19122623530752105 19668984203059308 22947148236902526 23738429210588820 24586230253824135 25496831374336140 26477478734887530 32781640338432180 34420722355353789 38245247061504210 45894296473805052 49172460507648270 52954957469775060 57367870592256315 68841444710707578 76490494123008420 98344921015296540 114735741184512630 137682889421415156 172103611776768945 229471482369025260 344207223553537890 688414447107075780
- Sum of all divisors σ(n): 2761914855802798080
- Sum of proper divisors (its aliquot sum) s(n): 2073500408695722300
- 688414447107075780 is an abundant number, because the sum of its proper divisors (2073500408695722300) is greater than itself. Its abundance is 1385085961588646520
Bases of 688414447107075780
- Binary: 1001100011011011110101001010110100100001000001101110110001002
- Hexadecimal: 0x98DBD4AD2106EC4
- Base-36: 58AEJZ2P9490
Squares and roots of 688414447107075780
- 688414447107075780 squared (6884144471070757802) is 473914450985740836763052542662608400
- 688414447107075780 cubed (6884144471070757803) is 326249554751402142518124055163279995450136871264552000
-
The
square root of 688414447107075780 is 829707446.6985792821 -
The
cube root of 688414447107075780 is 882978.2215946221
Scales and comparisons
How big is 688414447107075780?- 688,414,447,107,075,780 seconds is equal to 21,889,450,012 years, 16 weeks, 1 hour, 3 minutes.
-
To count from 1 to 688,414,447,107,075,780 would take you about sixty-five billion, six hundred sixty-eight million, three hundred fifty thousand and thirty-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 688414447107075780 cubic inches would be around 73581.5 feet tall.
Recreational maths with 688414447107075780
- 688414447107075780 backwards is 087570701744414886
- 688414447107075780 is a
Harshad number . - The number of decimal digits it has is: 18
- The sum of 688414447107075780'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 688414447107075780 - Facts about the integer". Numbermatics.com. 2024. Web. 19 June 2024.
APA style:
Numbermatics. (2024). Number 688414447107075780 - Facts about the integer. Retrieved 19 June 2024, from https://numbermatics.com/n/688414447107075780/
Chicago style:
Numbermatics. 2024. "Number 688414447107075780 - Facts about the integer". https://numbermatics.com/n/688414447107075780/
The information we have on file for 688414447107075780 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 688414447107075780, math, Factors of 688414447107075780, curriculum, school, college, exams, university, Prime factorization of 688414447107075780, STEM, science, technology, engineering, physics, economics, calculator, six hundred eighty-eight quadrillion, four hundred fourteen trillion, four hundred forty-seven billion, one hundred seven million, seventy-five thousand, seven hundred eighty.