27541437158522880
27,541,437,158,522,880 is an even composite number composed of five prime numbers multiplied together.
27541437158522880 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two thousand and sixteen divisors.
Prime factorization of 27541437158522880:
220 × 33 × 5 × 173 × 1992
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 17 × 17 × 17 × 199 × 199)See below for interesting mathematical facts about the number 27541437158522880 from the Numbermatics database.
Names of 27541437158522880
- Cardinal: 27541437158522880 can be written as Twenty-seven quadrillion, five hundred forty-one trillion, four hundred thirty-seven billion, one hundred fifty-eight million, five hundred twenty-two thousand, eight hundred eighty.
Scientific notation
- Scientific notation: 2.754143715852288 × 1016
Factors of 27541437158522880
Divisors of 27541437158522880
- Number of divisors d(n): 2016
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 27 30 32 34 36 40 45 48 51 54 60 64 68 72 80 85 90 96 102 108 120 128 135 136 144 153 160 170 180 192 199 204 216 240 255 256 270 272 288 289 306 320 340 360 384 398 408 432 459 480 510 512 540 544 576 578 597 612 640 680 720 765 768 796 816 864 867 918 960 995 1020 1024 1080 1088 1152 1156 1194 1224 1280 1360 1440 1445 1530 1536 1592 1632 1728 1734 1791 1836 1920 1990 2040 2048 2160 2176 2295 2304 2312 2388 2448 2560 2601 2720 2880 2890 2985 3060 3072 3184 3264 3383 3456 3468 3582 3672 3840 3980 4080 4096 4320 4335 4352 4590 4608 4624 4776 4896 4913 5120 5202 5373 5440 5760 5780 5970 6120 6144 6368 6528 6766 6912 6936 7164 7344 7680 7803 7960 8160 8192 8640 8670 8704 8955 9180 9216 9248 9552 9792 9826 10149 10240 10404 10746 10880 11520 11560 11940 12240 12288 12736 13005 13056 13532 13824 13872 14328 14688 14739 15360 15606 15920 16320 16384 16915 17280 17340 17408 17910 18360 18432 18496 19104 19584 19652 20298 20480 20808 21492 21760 23040 23120 23880 24480 24565 24576 25472 26010 26112 26865 27064 27648 27744 28656 29376 29478 30447 30720 31212 31840 32640 32768 33830 34560 34680 34816 35820 36720 36864 36992 38208 39015 39168 39304 39601 40596 40960 41616 42984 43520 44217 46080 46240 47760 48960 49130 49152 50745 50944 52020 52224 53730 54128 55296 55488 57312 57511 58752 58956 60894 61440 62424 63680 65280 65536 67660 69120 69360 69632 71640 73440 73695 73728 73984 76416 78030 78336 78608 79202 81192 81920 83232 85968 87040 88434 91341 92160 92480 95520 97920 98260 98304 101490 101888 104040 104448 107460 108256 110592 110976 114624 115022 117504 117912 118803 121788 122880 124848 127360 130560 131072 132651 135320 138240 138720 139264 143280 146880 147390 147456 147968 152235 152832 156060 156672 157216 158404 162384 163840 166464 171936 172533 174080 176868 182682 184320 184960 191040 195840 196520 196608 198005 202980 203776 208080 208896 214920 216512 221085 221184 221952 229248 230044 235008 235824 237606 243576 245760 249696 254720 261120 262144 265302 270640 276480 277440 278528 286560 287555 293760 294780 294912 295936 304470 305664 312120 313344 314432 316808 324768 327680 332928 343872 345066 348160 353736 356409 365364 368640 369920 382080 391680 393040 393216 396010 405960 407552 416160 417792 429840 433024 442170 442368 443904 456705 458496 460088 470016 471648 475212 487152 491520 499392 509440 517599 522240 524288 530604 541280 552960 554880 557056 573120 575110 587520 589560 589824 591872 594015 608940 611328 624240 626688 628864 633616 649536 655360 663255 665856 673217 687744 690132 696320 707472 712818 730728 737280 739840 764160 783360 786080 786432 792020 811920 815104 832320 835584 859680 862665 866048 884340 884736 887808 913410 916992 920176 940032 943296 950424 974304 977687 983040 998784 1018880 1035198 1044480 1048576 1061208 1069227 1082560 1105920 1109760 1114112 1146240 1150220 1175040 1179120 1179648 1183744 1188030 1217880 1222656 1248480 1253376 1257728 1267232 1299072 1310720 1326510 1331712 1346434 1375488 1380264 1392640 1414944 1425636 1461456 1474560 1479680 1528320 1552797 1566720 1572160 1572864 1584040 1623840 1630208 1664640 1671168 1719360 1725330 1732096 1768680 1769472 1775616 1782045 1826820 1833984 1840352 1880064 1886592 1900848 1948608 1955374 1966080 1997568 2019651 2037760 2070396 2088960 2122416 2138454 2165120 2211840 2219520 2228224 2292480 2300440 2350080 2358240 2359296 2367488 2376060 2435760 2445312 2496960 2506752 2515456 2534464 2587995 2598144 2621440 2653020 2663424 2692868 2750976 2760528 2785280 2829888 2851272 2922912 2933061 2949120 2959360 3056640 3105594 3133440 3144320 3145728 3168080 3247680 3260416 3329280 3342336 3366085 3438720 3450660 3464192 3537360 3538944 3551232 3564090 3653640 3667968 3680704 3760128 3773184 3801696 3897216 3910748 3932160 3995136 4039302 4075520 4140792 4177920 4244832 4276908 4330240 4423680 4439040 4456448 4584960 4600880 4700160 4716480 4718592 4734976 4752120 4871520 4888435 4890624 4993920 5013504 5030912 5068928 5175990 5196288 5242880 5306040 5326848 5346135 5385736 5501952 5521056 5570560 5659776 5702544 5845824 5866122 5898240 5918720 6058953 6113280 6211188 6266880 6288640 6336160 6495360 6520832 6658560 6684672 6732170 6877440 6901320 6928384 7074720 7077888 7102464 7128180 7307280 7335936 7361408 7520256 7546368 7603392 7763985 7794432 7821496 7864320 7990272 8078604 8151040 8281584 8355840 8489664 8553816 8660480 8799183 8847360 8878080 8912896 9169920 9201760 9400320 9432960 9437184 9469952 9504240 9743040 9776870 9781248 9987840 10027008 10061824 10098255 10137856 10351980 10392576 10612080 10653696 10692270 10771472 11003904 11042112 11141120 11319552 11405088 11444689 11691648 11732244 11796480 11837440 12117906 12226560 12422376 12533760 12577280 12672320 12990720 13041664 13317120 13369344 13464340 13754880 13802640 13856768 14149440 14155776 14204928 14256360 14614560 14665305 14671872 14722816 15040512 15092736 15206784 15527970 15588864 15642992 15728640 15980544 16157208 16302080 16563168 16711680 16979328 17107632 17320960 17598366 17694720 17756160 17825792 18176859 18339840 18403520 18800640 18865920 18939904 19008480 19486080 19553740 19562496 19975680 20054016 20123648 20196510 20275712 20703960 20785152 21224160 21307392 21384540 21542944 22007808 22084224 22282240 22639104 22810176 22889378 23383296 23464488 23592960 23674880 24235812 24453120 24844752 25067520 25154560 25344640 25981440 26083328 26397549 26634240 26738688 26928680 27509760 27605280 27713536 28298880 28311552 28409856 28512720 29229120 29330610 29343744 29445632 30081024 30185472 30294765 30413568 31055940 31177728 31285984 31961088 32314416 32604160 33126336 33423360 33958656 34215264 34334067 34641920 35196732 35389440 35512320 36353718 36679680 36807040 37601280 37731840 37879808 38016960 38972160 39107480 39124992 39951360 40108032 40247296 40393020 40551424 41407920 41570304 42448320 42614784 42769080 43085888 43995915 44015616 44168448 44564480 45278208 45620352 45778756 46766592 46928976 47185920 47349760 48471624 48906240 49689504 50135040 50309120 50689280 51962880 52166656 52795098 53268480 53477376 53857360 55019520 55210560 55427072 56597760 56819712 57025440 57223445 58458240 58661220 58687488 58891264 60162048 60370944 60589530 60827136 62111880 62355456 62571968 63922176 64628832 65208320 66252672 66846720 67917312 68430528 68668134 69283840 70393464 70778880 71024640 72707436 73359360 73614080 75202560 75463680 75759616 76033920 77944320 78214960 78249984 79902720 80216064 80494592 80786040 81102848 82815840 83140608 84896640 85229568 85538160 86171776 87991830 88031232 88336896 89128960 90556416 90884295 91240704 91557512 93533184 93857952 94699520 96943248 97812480 99379008 100270080 100618240 101378560 103002201 103925760 104333312 105590196 106536960 107714720 110039040 110421120 110854144 113195520 113639424 114050880 114446890 116916480 117322440 117374976 117782528 120324096 120741888 121179060 121654272 124223760 124710912 125143936 127844352 129257664 130416640 131987745 132505344 133693440 135834624 136861056 137336268 138567680 140786928 141557760 142049280 145414872 146718720 147228160 150405120 150927360 151519232 152067840 155888640 156429920 156499968 159805440 160432128 160989184 161572080 162205696 165631680 166281216 169793280 170459136 171076320 171670335 172343552 175983660 176062464 176673792 181112832 181768590 182481408 183115024 187066368 187715904 189399040 193886496 194559713 195624960 198758016 200540160 201236480 202757120 206004402 207851520 208666624 211180392 213073920 215429440 220078080 220842240 221708288 226391040 227278848 228101760 228893780 233832960 234644880 234749952 235565056 240648192 241483776 242358120 243308544 248447520 249421824 250287872 255688704 258515328 260833280 263975490 265010688 267386880 271669248 273722112 274672536 277135360 281573856 284098560 290829744 293437440 294456320 300810240 301854720 303038464 304135680 309006603 311777280 312859840 312999936 319610880 321978368 323144160 324411392 331263360 332562432 339586560 340918272 342152640 343340670 344687104 351967320 352124928 353347584 362225664 363537180 364962816 366230048 374132736 375431808 378798080 387772992 389119426 391249920 397516032 401080320 402472960 405514240 412008804 415703040 422360784 426147840 430858880 440156160 441684480 443416576 452782080 454557696 456203520 457787560 467665920 469289760 469499904 471130112 481296384 482967552 484716240 486617088 496895040 498843648 500575744 511377408 515011005 517030656 521666560 527950980 530021376 543338496 547444224 549345072 554270720 563147712 568197120 581659488 583679139 586874880 588912640 601620480 603709440 608271360 618013206 623554560 625719680 625999872 639221760 643956736 646288320 648822784 662526720 665124864 679173120 681836544 684305280 686681340 689374208 703934640 704249856 706695168 724451328 727074360 729925632 732460096 748265472 750863616 757596160 775545984 778238852 782499840 795032064 802160640 804945920 811028480 824017608 831406080 844721568 852295680 861717760 880312320 883368960 886833152 905564160 909115392 912407040 915575120 935331840 938579520 938999808 942260224 965935104 969432480 972798565 973234176 993790080 997687296 1001151488 1022754816 1030022010 1034061312 1043333120 1055901960 1060042752 1086676992 1094888448 1098690144 1108541440 1126295424 1136394240 1163318976 1167358278 1173749760 1177825280 1203240960 1207418880 1216542720 1236026412 1247109120 1251439360 1278443520 1287913472 1292576640 1297645568 1325053440 1330249728 1358346240 1363673088 1368610560 1373362680 1378748416 1407869280 1408499712 1413390336 1448902656 1454148720 1459851264 1464920192 1496530944 1501727232 1515192320 1545033015 1551091968 1556477704 1564999680 1590064128 1609891840 1622056960 1648035216 1662812160 1689443136 1704591360 1723435520 1751037417 1760624640 1766737920 1773666304 1811128320 1824814080 1831150240 1870663680 1877159040 1877999616 1884520448 1931870208 1938864960 1945597130 1946468352 1987580160 1995374592 2002302976 2045509632 2060044020 2068122624 2111803920 2120085504 2173353984 2189776896 2197380288 2217082880 2252590848 2272788480 2326637952 2334716556 2347499520 2355650560 2406481920 2414837760 2433085440 2472052824 2494218240 2502878720 2556887040 2575826944 2585153280 2595291136 2650106880 2660499456 2716692480 2727346176 2737221120 2746725360 2757496832 2815738560 2816999424 2826780672 2897805312 2908297440 2918395695 2919702528 2929840384 2993061888 3003454464 3090066030 3102183936 3112955408 3129999360 3180128256 3219783680 3244113920 3296070432 3325624320 3378886272 3409182720 3446871040 3502074834 3521249280 3533475840 3547332608 3622256640 3649628160 3662300480 3741327360 3754318080 3769040896 3863740416 3877729920 3891194260 3892936704 3975160320 3990749184 4004605952 4091019264 4120088040 4136245248 4223607840 4240171008 4346707968 4379553792 4394760576 4434165760 4505181696 4545576960 4653275904 4669433112 4694999040 4711301120 4829675520 4866170880 4944105648 4988436480 5005757440 5113774080 5151653888 5170306560 5190582272 5253112251 5300213760 5320998912 5433384960 5474442240 5493450720 5514993664 5631477120 5633998848 5653561344 5795610624 5816594880 5836791390 5839405056 5859680768 5986123776 6006908928 6180132060 6204367872 6225910816 6360256512 6439567360 6488227840 6592140864 6651248640 6757772544 6818365440 6893742080 7004149668 7042498560 7066951680 7244513280 7299256320 7324600960 7482654720 7508636160 7538081792 7727480832 7755459840 7782388520 7785873408 7950320640 7981498368 8009211904 8182038528 8240176080 8272490496 8447215680 8480342016 8693415936 8755187085 8759107584 8789521152 8868331520 9010363392 9306551808 9338866224 9389998080 9422602240 9659351040 9732341760 9888211296 9976872960 10011514880 10227548160 10340613120 10381164544 10506224502 10600427520 10641997824 10866769920 10948884480 10986901440 11029987328 11262954240 11307122688 11591221248 11633189760 11673582780 11678810112 11719361536 11972247552 12013817856 12360264120 12408735744 12451821632 12720513024 12879134720 12976455680 13184281728 13302497280 13515545088 13636730880 13787484160 14008299336 14084997120 14133903360 14489026560 14598512640 14649201920 14965309440 15017272320 15076163584 15454961664 15510919680 15564777040 15571746816 15900641280 15962996736 16018423808 16480352160 16544980992 16894431360 16960684032 17386831872 17510374170 17518215168 17579042304 17736663040 18020726784 18613103616 18677732448 18845204480 19318702080 19464683520 19776422592 19953745920 20023029760 20455096320 20681226240 20762329088 21012449004 21200855040 21733539840 21897768960 21973802880 22059974656 22525908480 22614245376 23182442496 23266379520 23347165560 23357620224 23438723072 23944495104 24027635712 24720528240 24817471488 24903643264 25441026048 25758269440 25952911360 26265561255 26368563456 26604994560 27031090176 27574968320 28016598672 28169994240 28267806720 28978053120 29197025280 29298403840 29930618880 30034544640 30152327168 31021839360 31129554080 31143493632 31801282560 31925993472 32036847616 32960704320 33089961984 33788862720 33921368064 34773663744 35020748340 35036430336 35158084608 36041453568 37226207232 37355464896 37690408960 38637404160 38929367040 39552845184 39907491840 40046059520 40910192640 41362452480 41524658176 42024898008 42401710080 43467079680 43795537920 43947605760 44119949312 45051816960 45228490752 46364884992 46532759040 46694331120 46715240448 46877446144 47888990208 48055271424 49441056480 49634942976 49807286528 50882052096 51905822720 52531122510 52737126912 53209989120 54062180352 55149936640 56033197344 56535613440 57956106240 58394050560 58596807680 59861237760 60069089280 60304654336 62043678720 62259108160 62286987264 63602565120 64073695232 65921408640 66179923968 67577725440 67842736128 69547327488 70041496680 70072860672 70316169216 72082907136 74452414464 74710929792 75380817920 77274808320 77858734080 79105690368 79814983680 80092119040 82724904960 84049796016 84803420160 86934159360 87591075840 87895211520 88239898624 90103633920 90456981504 93065518080 93388662240 93430480896 93754892288 95777980416 96110542848 98882112960 99269885952 99614573056 101764104192 103811645440 105062245020 105474253824 108124360704 110299873280 112066394688 113071226880 115912212480 116788101120 117193615360 119722475520 120138178560 124087357440 124518216320 124573974528 127205130240 128147390464 131842817280 132359847936 135155450880 135685472256 139094654976 140082993360 140145721344 140632338432 144165814272 148904828928 149421859584 150761635840 155717468160 158211380736 159629967360 160184238080 165449809920 168099592032 169606840320 173868318720 175182151680 175790423040 176479797248 180207267840 180913963008 186131036160 186777324480 186860961792 187509784576 192221085696 197764225920 198539771904 199229146112 203528208384 207623290880 210124490040 210948507648 216248721408 220599746560 224132789376 226142453760 231824424960 233576202240 234387230720 239444951040 240276357120 248174714880 249036432640 254410260480 256294780928 263685634560 264719695872 270310901760 271370944512 280165986720 280291442688 281264676864 288331628544 297809657856 298843719168 301523271680 311434936320 316422761472 320368476160 330899619840 336199184064 339213680640 347736637440 350364303360 351580846080 352959594496 360414535680 372262072320 373554648960 373721923584 375019569152 384442171392 395528451840 397079543808 398458292224 407056416768 420248980080 421897015296 432497442816 441199493120 448265578752 452284907520 467152404480 468774461440 478889902080 480552714240 496349429760 498072865280 508820520960 512589561856 527371269120 529439391744 540621803520 542741889024 560331973440 560582885376 562529353728 576663257088 595619315712 597687438336 622869872640 632845522944 640736952320 661799239680 672398368128 678427361280 695473274880 700728606720 703161692160 705919188992 720829071360 744524144640 747109297920 750039138304 768884342784 791056903680 794159087616 796916584448 814112833536 840497960160 843794030592 864994885632 882398986240 896531157504 904569815040 934304808960 937548922880 961105428480 992698859520 996145730560 1017641041920 1025179123712 1054742538240 1058878783488 1081243607040 1120663946880 1121165770752 1125058707456 1153326514176 1191238631424 1195374876672 1265691045888 1281473904640 1323598479360 1344796736256 1356854722560 1401457213440 1406323384320 1441658142720 1489048289280 1494218595840 1500078276608 1537768685568 1582113807360 1588318175232 1593833168896 1628225667072 1680995920320 1687588061184 1729989771264 1764797972480 1793062315008 1868609617920 1875097845760 1922210856960 1985397719040 1992291461120 2035282083840 2109485076480 2117757566976 2162487214080 2241327893760 2250117414912 2306653028352 2382477262848 2390749753344 2531382091776 2562947809280 2647196958720 2689593472512 2713709445120 2802914426880 2812646768640 2883316285440 2978096578560 2988437191680 3000156553216 3075537371136 3164227614720 3176636350464 3187666337792 3361991840640 3375176122368 3459979542528 3529595944960 3586124630016 3750195691520 3844421713920 3970795438080 3984582922240 4070564167680 4218970152960 4324974428160 4482655787520 4500234829824 4613306056704 4764954525696 4781499506688 5062764183552 5125895618560 5294393917440 5379186945024 5605828853760 5625293537280 5766632570880 5956193157120 5976874383360 6000313106432 6328455229440 6353272700928 6375332675584 6723983681280 6750352244736 6919959085056 7172249260032 7500391383040 7688843427840 7941590876160 7969165844480 8141128335360 8437940305920 8649948856320 8965311575040 9000469659648 9226612113408 9529909051392 9562999013376 10125528367104 10588787834880 10758373890048 11250587074560 11533265141760 11912386314240 11953748766720 12000626212864 12656910458880 12750665351168 13447967362560 13500704489472 13839918170112 14344498520064 15000782766080 15377686855680 15883181752320 15938331688960 16875880611840 17299897712640 17930623150080 18000939319296 19059818102784 19125998026752 20251056734208 21516747780096 22501174149120 23066530283520 23824772628480 23907497533440 25313820917760 25501330702336 26895934725120 27001408978944 27679836340224 28688997040128 30001565532160 31766363504640 31876663377920 33751761223680 34599795425280 35861246300160 36001878638592 38251996053504 40502113468416 43033495560192 45002348298240 46133060567040 47649545256960 47814995066880 50627641835520 51002661404672 53791869450240 54002817957888 57377994080256 60003131064320 63753326755840 67503522447360 69199590850560 71722492600320 76503992107008 81004226936832 86066991120384 90004696596480 95299090513920 95629990133760 101255283671040 102005322809344 107583738900480 108005635915776 114755988160512 127506653511680 135007044894720 138399181701120 143444985200640 153007984214016 162008453873664 172133982240768 180009393192960 191259980267520 202510567342080 204010645618688 215167477800960 229511976321024 255013307023360 270014089789440 286889970401280 306015968428032 324016907747328 344267964481536 382519960535040 405021134684160 430334955601920 459023952642048 510026614046720 540028179578880 573779940802560 612031936856064 688535928963072 765039921070080 810042269368320 860669911203840 918047905284096 1020053228093440 1147559881605120 1377071857926144 1530079842140160 1620084538736640 1721339822407680 1836095810568192 2295119763210240 2754143715852288 3060159684280320 3442679644815360 4590239526420480 5508287431704576 6885359289630720 9180479052840960 13770718579261440 27541437158522880
- Sum of all divisors σ(n): 104569596068212800
- Sum of proper divisors (its aliquot sum) s(n): 77028158909689920
- 27541437158522880 is an abundant number, because the sum of its proper divisors (77028158909689920) is greater than itself. Its abundance is 49486721751167040
Bases of 27541437158522880
- Binary: 11000011101100011001010100010100111000000000000000000002
- Hexadecimal: 0x61D8CA8A700000
- Base-36: 7J6MHK9CLC0
Squares and roots of 27541437158522880
- 27541437158522880 squared (275414371585228802) is 758530760756864850286623483494400
- 27541437158522880 cubed (275414371585228803) is 20891027280191746355452668451585937531964751872000
-
The
square root of 27541437158522880 is 165956130.2227877329 -
The
cube root of 27541437158522880 is 301992.0657774109
Scales and comparisons
How big is 27541437158522880?- 27,541,437,158,522,880 seconds is equal to 875,732,510 years, 19 weeks, 6 days, 4 hours, 48 minutes.
-
To count from 1 to 27,541,437,158,522,880 would take you about two billion, six hundred twenty-seven million, one hundred ninety-seven thousand, five hundred thirty-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 27541437158522880 cubic inches would be around 25166 feet tall.
Recreational maths with 27541437158522880
- 27541437158522880 backwards is 08822585173414572
- 27541437158522880 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 27541437158522880's digits is 72
- 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 27541437158522880 - Facts about the integer". Numbermatics.com. 2024. Web. 16 May 2024.
APA style:
Numbermatics. (2024). Number 27541437158522880 - Facts about the integer. Retrieved 16 May 2024, from https://numbermatics.com/n/27541437158522880/
Chicago style:
Numbermatics. 2024. "Number 27541437158522880 - Facts about the integer". https://numbermatics.com/n/27541437158522880/
The information we have on file for 27541437158522880 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 27541437158522880, math, Factors of 27541437158522880, curriculum, school, college, exams, university, Prime factorization of 27541437158522880, STEM, science, technology, engineering, physics, economics, calculator, twenty-seven quadrillion, five hundred forty-one trillion, four hundred thirty-seven billion, one hundred fifty-eight million, five hundred twenty-two thousand, eight hundred eighty.