17102992541274644480
17,102,992,541,274,644,480 is an even composite number composed of eight prime numbers multiplied together.
What does the number 17102992541274644480 look like?
This visualization shows the relationship between its 8 prime factors (large circles) and 1792 divisors.
17102992541274644480 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of one thousand, seven hundred ninety-two divisors.
Prime factorization of 17102992541274644480:
213 × 5 × 7 × 17 × 29 × 3121 × 8191 × 4733
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 17 × 29 × 3121 × 8191 × 4733)See below for interesting mathematical facts about the number 17102992541274644480 from the Numbermatics database.
Names of 17102992541274644480
- Cardinal: 17102992541274644480 can be written as Seventeen quintillion, one hundred two quadrillion, nine hundred ninety-two trillion, five hundred forty-one billion, two hundred seventy-four million, six hundred forty-four thousand, four hundred eighty.
Scientific notation
- Scientific notation: 1.710299254127464448 × 1019
Factors of 17102992541274644480
Divisors of 17102992541274644480
- Number of divisors d(n): 1792
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 17 20 28 29 32 34 35 40 56 58 64 68 70 80 85 112 116 119 128 136 140 145 160 170 203 224 232 238 256 272 280 290 320 340 406 448 464 476 493 512 544 560 580 595 640 680 812 896 928 952 986 1015 1024 1088 1120 1160 1190 1280 1360 1624 1792 1856 1904 1972 2030 2048 2176 2240 2320 2380 2465 2560 2720 3121 3248 3451 3584 3712 3808 3944 4060 4096 4352 4480 4640 4733 4760 4930 5120 5440 6242 6496 6902 7168 7424 7616 7888 8120 8191 8192 8704 8960 9280 9466 9520 9860 10240 10880 12484 12992 13804 14336 14848 15232 15605 15776 16240 16382 17255 17408 17920 18560 18932 19040 19720 20480 21760 21847 23665 24968 25984 27608 28672 29696 30464 31210 31552 32480 32764 33131 34510 34816 35840 37120 37864 38080 39440 40955 40960 43520 43694 47330 49936 51968 53057 55216 57337 57344 59392 60928 62420 63104 64960 65528 66262 69020 69632 71680 74240 75728 76160 78880 80461 81910 87040 87388 90509 94660 99872 103936 106114 109235 110432 114674 118784 121856 124840 126208 129920 131056 132524 137257 138040 139247 139264 143360 148480 151456 152320 157760 160922 163820 165655 174080 174776 181018 189320 199744 207872 212228 218470 220864 229348 237539 237568 243712 249680 252416 259840 262112 265048 265285 274514 276080 278494 286685 286720 296960 302912 304640 315520 321844 327640 331310 348160 349552 362036 371399 378640 399488 402305 415744 424456 436940 441728 452545 458696 475078 487424 499360 504832 519680 524224 530096 530570 549028 552160 556988 563227 573370 593920 605824 609280 631040 633563 643688 655280 662620 686285 696235 696320 699104 724072 742798 757280 798976 804610 831488 848912 873880 883456 905090 917392 950156 960799 974729 974848 998720 1009664 1039360 1048448 1060192 1061140 1098056 1104320 1113976 1126454 1146740 1187695 1187840 1211648 1218560 1262080 1267126 1287376 1310560 1325240 1372570 1392470 1398208 1448144 1485596 1514560 1538653 1597952 1609220 1662773 1662976 1697824 1747760 1766912 1810180 1834784 1856995 1900312 1921598 1949458 1997440 2019328 2078720 2096896 2120384 2122280 2196112 2208640 2227952 2252908 2293480 2333369 2375390 2423296 2437120 2524160 2534252 2574752 2621120 2650480 2745140 2784940 2796416 2816135 2896288 2971192 3029120 3077306 3167815 3195904 3218440 3325546 3395648 3495520 3533824 3620360 3669568 3713990 3800624 3843196 3898916 3994880 4038163 4038656 4157440 4193792 4240768 4244560 4392224 4417280 4455904 4505816 4586960 4666738 4750780 4803995 4846592 4873645 4874240 5048320 5068504 5149504 5242240 5300960 5490280 5569880 5592832 5632270 5792576 5942384 6058240 6154612 6335630 6391808 6436880 6651092 6791296 6991040 7067648 7240720 7339136 7427980 7601248 7686392 7693265 7797832 7989760 8076326 8313865 8314880 8387584 8481536 8489120 8784448 8834560 8911808 9011632 9173920 9333476 9501560 9607990 9693184 9747290 10096640 10137008 10299008 10484480 10601920 10770571 10980560 11139760 11185664 11264540 11585152 11666845 11884768 12116480 12309224 12671260 12783616 12873760 13302184 13582592 13982080 14135296 14481440 14678272 14771693 14855960 15202496 15372784 15386530 15595664 15979520 16152652 16333583 16627730 16775168 16963072 16978240 17568896 17669120 17823616 18023264 18347840 18666952 19003120 19215980 19386368 19494580 20190815 20193280 20274016 20598016 20968960 21203840 21541142 21961120 22279520 22371328 22529080 23170304 23333690 23769536 24232960 24618448 25342520 25564111 25567232 25747520 26604368 27165184 27964160 28267141 28270592 28962880 29356544 29543386 29711920 30404992 30745568 30773060 31191328 31959040 32305304 32667166 33255460 33550336 33926144 33956480 35137792 35338240 35647232 36046528 36695680 37333904 38006240 38431960 38768003 38772736 38989160 40381630 40548032 41196032 41937920 42407680 43082284 43922240 44559040 44742656 45058160 46340608 46667380 47539072 48465920 49236896 50685040 51128222 51495040 53208736 53852855 54330368 55928320 56534282 57925760 58713088 59086772 59423840 60809984 61491136 61546120 62382656 63918080 64610608 65334332 66510920 67100672 67852288 67912960 70275584 70676480 71294464 72093056 73391360 73858465 74667808 76012480 76863920 77536006 77978320 80763260 81096064 81667915 82392064 83875840 84815360 86164568 87844480 89118080 89485312 90116320 92681216 93334760 95078144 96931840 98473792 101370080 102256444 102990080 103401851 106417472 107705710 108660736 111856640 113068564 115851520 117426176 118173544 118847680 121619968 122982272 123092240 124765312 127820555 127836160 129221216 130668664 133021840 135704576 135825920 140551168 141335705 141352960 142588928 144186112 146782720 147716930 149335616 152024960 153727840 155072012 155956640 161526520 162192128 163335830 164784128 167751680 169630720 172329136 175688960 178236160 178948777 178970624 180232640 185362432 186669520 190156288 193840015 193863680 196947584 202740160 204512888 205980160 206803702 212834944 215411420 217321472 223713280 226137128 231703040 234852352 236347088 237695360 243239936 245964544 246184480 249530624 251118781 255641110 258442432 261337328 266043680 271376021 271409152 271651840 281102336 282671410 285177856 288372224 293565440 295433860 298671232 304049920 307455680 310144024 311913280 323053040 324384256 326671660 329568256 335503360 339261440 344658272 351377920 356472320 357897554 360465280 370724864 373339040 380312576 387680030 393895168 405480320 409025776 411960320 413607404 425669888 428379097 430822840 434589887 434642944 447426560 452274256 463406080 469704704 472694176 475390720 486479872 491929088 492368960 499061248 502237562 511282220 516884864 517009255 522674656 532087360 542752042 543303680 562204672 565342820 570355712 576744448 587130880 590867720 597342464 608099840 614911360 620288048 623826560 646106080 648768512 653343320 659056051 659136512 678522880 689316544 702755840 712944640 715795108 720930560 741359219 741449728 746678080 760625152 775360060 787790336 810960640 818051552 823920640 827214808 851339776 856758194 861645680 869179774 894743885 894853120 904548512 926812160 945388352 950781440 972959744 983858176 984737920 998122496 1004475124 1022564440 1033769728 1034018510 1045349312 1064174720 1085504084 1086607360 1124272087 1124409344 1130685640 1140711424 1153488896 1174261760 1181735440 1194684928 1216199680 1229822720 1240576096 1247653120 1255593905 1292212160 1297537024 1306686640 1318112102 1356880105 1357045760 1378633088 1405511680 1425889280 1431590216 1441861120 1482718438 1493356160 1521250304 1550720120 1575580672 1621921280 1636103104 1647841280 1654429616 1702679552 1713516388 1723291360 1738359548 1757831467 1789487770 1809097024 1853624320 1890776704 1901562880 1945919488 1967716352 1969475840 1996244992 2008950248 2045128880 2067539456 2068037020 2090698624 2128349440 2141895485 2171008168 2172949435 2173214720 2248544174 2261371280 2306977792 2348523520 2363470880 2389369856 2432399360 2459645440 2481152192 2495306240 2511187810 2584424320 2595074048 2613373280 2636224204 2713760210 2757266176 2811023360 2851778560 2863180432 2883722240 2965436876 2986712320 2998653679 3042129209 3042500608 3101440240 3151161344 3243842560 3272206208 3295280255 3295682560 3308859232 3405359104 3427032776 3446582720 3476719096 3515662934 3578975540 3618194048 3706796095 3707248640 3781553408 3803125760 3935432704 3938951680 3992489984 4017900496 4090257760 4135078912 4136074040 4181397248 4256698880 4283790970 4342016336 4345898870 4497088348 4522742560 4613392357 4613955584 4726941760 4778739712 4864798720 4919290880 4962304384 4990612480 5022375620 5168848640 5189514533 5190148096 5226746560 5272448408 5427520420 5514532352 5621360435 5622046720 5703557120 5726360864 5767444480 5930873752 5973424640 5997307358 6084258418 6202880480 6302322688 6487685120 6544412416 6590560510 6617718464 6810718208 6854065552 6893165440 6953438192 7031325868 7157951080 7236388096 7282444649 7413592190 7563106816 7606251520 7869904609 7870865408 7877903360 7984979968 8035800992 8180515520 8270157824 8272148080 8362794496 8513397760 8567581940 8684032672 8691797740 8789157335 8994176696 9045485120 9226784714 9453883520 9557479424 9729597440 9838581760 9924608768 9981224960 10044751240 10337697280 10379029066 10453493120 10544896816 10855040840 11029064704 11242720870 11452721728 11534888960 11861747504 11946849280 11994614716 12168516836 12405760960 12603106723 12604645376 12975370240 13088824832 13181121020 13235436928 13621436416 13708131104 13786330880 13906876384 14062651736 14315902160 14472776192 14564889298 14827184380 14993268395 15126213632 15210646045 15212503040 15739809218 15755806720 16071601984 16361031040 16540315648 16544296160 16725588992 17026795520 17135163880 17368065344 17383595480 17578314670 17988353392 18090970240 18453569428 18907767040 19112625479 19114958848 19677163520 19849217536 19962449920 20089502480 20675394560 20758058132 20906986240 21089793632 21710081680 22058129408 22485441740 22905443456 23066961785 23069777920 23723495008 23893698560 23989229432 24337033672 24811521920 25206213446 25947572665 25950740480 26177649664 26362242040 26470873856 27416262208 27572661760 27813752768 28125303472 28631804320 28945552384 29129778596 29654368760 29986536790 30252427264 30421292090 31479618436 31511613440 32143203968 32722062080 33080631296 33088592320 33451177984 34053591040 34270327760 34736130688 34767190960 35156629340 35976706784 36181940480 36412223245 36907138856 37815534080 38225250958 39349523045 39354327040 39698435072 39924899840 40179004960 41350789120 41516116264 41813972480 42179587264 43420163360 44116258816 44970883480 45810886912 46133923570 47446990016 47787397120 47978458864 48674067344 49623043840 50412426892 50977112543 51895145330 52355299328 52724484080 52941747712 54832524416 55145323520 55627505536 56250606944 57263608640 57891104768 58259557192 59308737520 59973073580 60504854528 60842584180 62959236872 63015533615 63023226880 64286407936 65444124160 66177184640 66902355968 68107182080 68540655520 69472261376 69534381920 70313258680 71953413568 72363880960 72824446490 73814277712 75631068160 76450501916 78699046090 79396870144 80358009920 82701578240 83032232528 83627944960 84359174528 86840326720 88221747061 88232517632 89941766960 91621773824 92267847140 94893980032 95563127395 95574794240 95956917728 97348134688 99246087680 100824853784 101954225086 103790290660 104710598656 105448968160 105883495424 109665048832 110290647040 111255011072 112501213888 114527217280 115782209536 116519114384 118617475040 119946147160 120994937363 121009709056 121685168360 125918473744 126031067230 128572815872 130888248320 132354369280 133788378353 133804711936 137081311040 138944522752 139068763840 140626517360 143906827136 144727761920 145648892980 147628555424 151262136320 152901003832 157398092180 158793740288 160716019840 165403156480 166064465056 167255889920 168718349056 173680653440 176443494122 179883533920 183243547648 184535694280 189787960064 191126254790 191913835456 194696269376 198492175360 201649707568 203908450172 207580581320 209421197312 210897936320 211766990848 219330097664 220581294080 222510022144 225002427776 229054434560 231564419072 233038228768 237234950080 239892294320 241989874726 243370336720 251836947488 252062134460 254885562715 257145631744 261776496640 264708738560 267576756706 274162622080 277889045504 278137527680 281253034720 287813654272 289455523840 291297785960 295257110848 302524272640 305802007664 314796184360 317587480576 321432039680 332128930112 334511779840 337436698112 347361306880 352886988244 359767067840 366487095296 369071388560 379575920128 382252509580 383827670912 389392538752 396984350720 403299415136 407816900344 415161162640 421795872640 423533981696 438660195328 441108735305 441162588160 445020044288 450004855552 458108869120 466076457536 474469900160 479784588640 483979749452 486740673440 503673894976 504124268920 509771125430 514291263488 523552993280 529417477120 535153513412 548325244160 555778091008 556275055360 562506069440 575627308544 578911047680 582595571920 590514221696 604974686815 605048545280 611604015328 629592368720 642864079360 664257860224 668941891765 669023559680 674873396224 694722613760 705773976488 719534135680 732974190592 738142777120 759151840256 764505019160 767655341824 778785077504 793968701440 806598830272 815633800688 830322325280 843591745280 846964561541 847067963392 877320390656 882217470610 890040088576 900009711104 916217738240 932152915072 948939800320 959569177280 967959498904 973481346880 1007347789952 1008248537840 1019542250860 1028582526976 1047105986560 1058834954240 1070307026824 1096650488320 1111556182016 1112550110720 1125012138880 1151254617088 1157822095360 1165191143840 1181028443392 1209949373630 1223208030656 1259184737440 1285728158720 1328515720448 1337883783530 1349746792448 1389445227520 1411547952976 1439068271360 1465948381184 1476285554240 1518303680512 1529010038320 1535310683648 1557570155008 1587937402880 1613197660544 1631267601376 1660644650560 1687183490560 1693929123082 1754640781312 1764434941220 1780080177152 1800019422208 1832435476480 1864305830144 1897879600640 1919138354560 1935918997808 1946962693760 2014695579904 2016497075680 2039084501720 2056913935171 2057165053952 2117669908480 2140614053648 2193300976640 2223112364032 2225100221440 2250024277760 2302509234176 2330382287680 2362056886784 2419898747260 2446416061312 2518369474880 2571456317440 2657031440896 2675767567060 2699493584896 2778890455040 2823095905952 2878136542720 2952571108480 3036607361024 3058020076640 3070621367296 3115140310016 3226395321088 3262535202752 3321289301120 3374366981120 3387858246164 3508853183527 3509281562624 3528869882440 3560160354304 3600038844416 3664870952960 3728611660288 3795759201280 3838276709120 3871837995616 3893925387520 4029391159808 4032994151360 4078169003440 4113827870342 4234822807705 4235339816960 4281228107296 4386601953280 4450200442880 4500048555520 4605018468352 4660764575360 4724113773568 4839797494520 4892832122624 5036738949760 5142912634880 5314062881792 5351535134120 5398987169792 5557780910080 5646191811904 5756273085440 5905142216960 6073214722048 6116040153280 6141242734592 6230280620032 6452790642176 6525070405504 6642578602240 6748733962240 6775716492328 7017706367054 7057739764880 7200077688832 7329741905920 7457223320576 7591518402560 7676553418240 7743675991232 7787850775040 8058782319616 8065988302720 8156338006880 8227655740684 8469645615410 8562456214592 8773203906560 8900400885760 9000097111040 9210036936704 9321529150720 9448227547136 9679594989040 9785664245248 10073477899520 10284569675855 10285825269760 10628125763584 10703070268240 11115561820160 11292383623808 11512546170880 11810284433920 12232080306560 12282485469184 12460561240064 12905581284352 13050140811008 13285157204480 13497467924480 13551432984656 14035412734108 14115479529760 14398397546197 14400155377664 14914446641152 15183036805120 15353106836480 15487351982464 15575701550080 16117564639232 16131976605440 16312676013760 16455311481368 16939291230820 17124912429184 17544265917635 17546407813120 17800801771520 18000194222080 18643058301440 18896455094272 19359189978080 19571328490496 20146955799040 20569139351710 21256251527168 21406140536480 22584767247616 23025092341760 23620568867840 24464160613120 24561972284689 24564970938368 24921122480128 25811162568704 26100281622016 26570314408960 26994935848960 27102865969312 28070825468216 28230959059520 28796795092394 29828893282304 30366073610240 30706213672960 30974703964928 31151403100160 32235129278464 32263953210880 32625352027520 32910622962736 33878582461640 34249824858368 35088531835270 36000388444160 37286116602880 37792910188544 38718379956160 39142656980992 40293911598080 41138278703420 42512503054336 42812281072960 45169534495232 46050184683520 47241137735680 48928321226240 49123944569378 51622325137408 52200563244032 53140628817920 54205731938624 56141650936432 56461918119040 57593590184788 59650504119959 59657786564608 61412427345920 61949407929856 62302806200320 64470258556928 64527906421760 65250704055040 65821245925472 67757164923280 68499649716736 70177063670540 71991987730985 72000776888320 74572233205760 77436759912320 78285313961984 80587823196160 82276557406840 85624562145920 90339068990464 94482275471360 97856642452480 98247889138756 103244650274816 104401126488064 106281257635840 108411463877248 112283301872864 112923836238080 115187180369576 119301008239918 122809861423445 122824854691840 123898815859712 124605612400640 129055812843520 130501408110080 131642491850944 135514329846560 136999299433472 140354127341080 143983975461970 149144466411520 154873519824640 156570627923968 161175646392320 164553114813680 171249124291840 180678137980928 188964550942720 195713284904960 196495778277512 208802252976128 212562515271680 216822927754496 224566603745728 225847672476160 230374360739152 238602016479836 245619722846890 247797631719424 258111625687040 261002816220160 263284983701888 271028659693120 273998598866944 280708254682160 287967950923940 298252520599795 298288932823040 309747039649280 322351292784640 329106229627360 342498248583680 361356275961856 391426569809920 392991556555024 417553528839713 417604505952256 433645855508992 449133207491456 451695344952320 460748721478304 477204032959672 491239445693780 495595263438848 516223251374080 522005632440320 526569967403776 542057319386240 547997197733888 561416509364320 575935901847880 596505041199590 619494079298560 658212459254720 684996497167360 722712551923712 782853139619840 785983113110048 835107057679426 867291711017984 898266414982912 903390689904640 921497442956608 954408065919344 982478891387560 991190526877696 1044011264880640 1053139934807552 1084114638772480 1095994395467776 1122833018728640 1151871803695760 1193010082399180 1238988158597120 1316424918509440 1369992994334720 1571966226220096 1670214115358852 1734583422035968 1796532829965824 1806781379809280 1842994885913216 1908816131838688 1964957782775120 2087767644198565 2088022529761280 2106279869615104 2168229277544960 2245666037457280 2303743607391520 2386020164798360 2477976317194240 2632849837018880 2739985988669440 3143932452440192 3340428230717704 3469166844071936 3593065659931648 3613562759618560 3685989771826432 3817632263677376 3929915565550240 4175535288397130 4212559739230208 4336458555089920 4491332074914560 4607487214783040 4772040329596720 4955952634388480 5265699674037760 5479971977338880 6287864904880384 6680856461435408 6938333688143872 7186131319863296 7371979543652864 7635264527354752 7859831131100480 8351070576794260 8425119478460416 8672917110179840 8982664149829120 9214974429566080 9544080659193440 10531399348075520 12575729809760768 13361712922870816 14372262639726592 14743959087305728 15270529054709504 15719662262200960 16702141153588520 16850238956920832 17345834220359680 17965328299658240 18429948859132160 19088161318386880 21062798696151040 25151459619521536 26723425845741632 28744525279453184 29487918174611456 30541058109419008 31439324524401920 33404282307177040 34691668440719360 35930656599316480 36859897718264320 38176322636773760 42125597392302080 50302919239043072 53446851691483264 58975836349222912 61082116218838016 62878649048803840 66808564614354080 71861313198632960 73719795436528640 76352645273547520 84251194784604160 100605838478086144 106893703382966528 117951672698445824 122164232437676032 125757298097607680 133617129228708160 143722626397265920 147439590873057280 152705290547095040 201211676956172288 213787406765933056 244328464875352064 251514596195215360 267234258457416320 294879181746114560 305410581094190080 427574813531866112 488656929750704128 503029192390430720 534468516914832640 589758363492229120 610821162188380160 855149627063732224 1006058384780861440 1068937033829665280 1221642324376760320 1710299254127464448 2137874067659330560 2443284648753520640 3420598508254928896 4275748135318661120 8551496270637322240 17102992541274644480
- Sum of all divisors σ(n): 51413778761263349760
- Sum of proper divisors (its aliquot sum) s(n): 34310786219988705280
- 17102992541274644480 is an abundant number, because the sum of its proper divisors (34310786219988705280) is greater than itself. Its abundance is 17207793678714060800
Bases of 17102992541274644480
- Binary: 11101101010110100000100100011001110010101101010010100000000000002
- Hexadecimal: 0xED5A0919CAD4A000
- Base-36: 3LXUWV68TH1Q8
Squares and roots of 17102992541274644480
- 17102992541274644480 squared (171029925412746444802) is 292512353866896121666809076950394470400
- 17102992541274644480 cubed (171029925412746444803) is 5002836606416213779010613804902889166457166361517883392000
-
The
square root of 17102992541274644480 is 4135576446.0682678185 -
The
cube root of 17102992541274644480 is 2576463.7439641875
Scales and comparisons
How big is 17102992541274644480?- 17,102,992,541,274,644,480 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
-
To count from 1 to 17,102,992,541,274,644,480 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 17102992541274644480 cubic inches would be around 214705.3 feet tall.
Recreational maths with 17102992541274644480
- 17102992541274644480 backwards is 08444647214529920171
- 17102992541274644480 is a
Harshad number . - The number of decimal digits it has is: 20
- The sum of 17102992541274644480's digits is 80
- 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 17102992541274644480 - Facts about the integer". Numbermatics.com. 2024. Web. 19 June 2024.
APA style:
Numbermatics. (2024). Number 17102992541274644480 - Facts about the integer. Retrieved 19 June 2024, from https://numbermatics.com/n/17102992541274644480/
Chicago style:
Numbermatics. 2024. "Number 17102992541274644480 - Facts about the integer". https://numbermatics.com/n/17102992541274644480/
The information we have on file for 17102992541274644480 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 17102992541274644480, math, Factors of 17102992541274644480, curriculum, school, college, exams, university, Prime factorization of 17102992541274644480, STEM, science, technology, engineering, physics, economics, calculator, seventeen quintillion, one hundred two quadrillion, nine hundred ninety-two trillion, five hundred forty-one billion, two hundred seventy-four million, six hundred forty-four thousand, four hundred eighty.