52729892105652000
52,729,892,105,652,000 is an even composite number composed of five prime numbers multiplied together.
52729892105652000 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 52729892105652000:
25 × 36 × 53 × 172 × 3973
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 5 × 17 × 17 × 397 × 397 × 397)See below for interesting mathematical facts about the number 52729892105652000 from the Numbermatics database.
Names of 52729892105652000
- Cardinal: 52729892105652000 can be written as Fifty-two quadrillion, seven hundred twenty-nine trillion, eight hundred ninety-two billion, one hundred five million, six hundred fifty-two thousand.
Scientific notation
- Scientific notation: 5.2729892105652 × 1016
Factors of 52729892105652000
Divisors of 52729892105652000
- 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 25 27 30 32 34 36 40 45 48 50 51 54 60 68 72 75 80 81 85 90 96 100 102 108 120 125 135 136 144 150 153 160 162 170 180 200 204 216 225 240 243 250 255 270 272 288 289 300 306 324 340 360 375 397 400 405 408 425 432 450 459 480 486 500 510 540 544 578 600 612 648 675 680 720 729 750 765 794 800 810 816 850 864 867 900 918 972 1000 1020 1080 1125 1156 1191 1200 1215 1224 1275 1296 1350 1360 1377 1440 1445 1458 1500 1530 1588 1620 1632 1700 1734 1800 1836 1944 1985 2000 2025 2040 2125 2160 2250 2295 2312 2382 2400 2430 2448 2550 2592 2601 2700 2720 2754 2890 2916 3000 3060 3176 3240 3375 3400 3468 3573 3600 3645 3672 3825 3888 3970 4000 4050 4080 4131 4250 4320 4335 4500 4590 4624 4764 4860 4896 5100 5202 5400 5508 5780 5832 5955 6000 6075 6120 6352 6375 6480 6749 6750 6800 6885 6936 7146 7200 7225 7290 7344 7650 7776 7803 7940 8100 8160 8262 8500 8670 9000 9180 9248 9528 9720 9925 10125 10200 10404 10719 10800 11016 11475 11560 11664 11910 12000 12150 12240 12393 12704 12750 12960 13005 13498 13500 13600 13770 13872 14292 14450 14580 14688 15300 15606 15880 16200 16524 17000 17340 17865 18000 18225 18360 19056 19125 19440 19850 20247 20250 20400 20655 20808 21438 21600 21675 22032 22950 23120 23328 23409 23820 24300 24480 24786 25500 26010 26996 27000 27540 27744 28584 28900 29160 29775 30375 30600 31212 31760 32157 32400 33048 33745 34000 34425 34680 35730 36000 36125 36450 36720 38112 38250 38880 39015 39700 40494 40500 40800 41310 41616 42876 43350 44064 45900 46240 46818 47640 48600 49572 49625 51000 52020 53595 53992 54000 55080 57168 57375 57800 58320 59550 60741 60750 61200 61965 62424 63520 64314 64800 65025 66096 67490 68000 68850 69360 70227 71460 72250 72900 73440 76500 78030 79400 80988 81000 82620 83232 85752 86700 89325 91125 91800 93636 95280 96471 97200 99144 99250 101235 102000 103275 104040 107190 107984 108000 108375 110160 114336 114733 114750 115600 116640 117045 119100 121482 121500 122400 123930 124848 128628 130050 132192 134980 137700 138720 140454 142920 144500 145800 148875 153000 156060 157609 158800 160785 161976 162000 165240 168725 171504 172125 173400 178650 182223 182250 183600 187272 190560 192942 194400 195075 198288 198500 202470 204000 206550 208080 210681 214380 215968 216750 220320 229466 229500 231200 234090 238200 242964 243000 247860 249696 257256 260100 267975 269960 275400 280908 285840 289000 289413 291600 297750 303705 306000 309825 312120 315218 317600 321570 323952 324000 325125 330480 337450 343008 344199 344250 346800 351135 357300 364446 364500 367200 374544 385884 390150 396576 397000 404940 413100 416160 421362 428760 433500 446625 458932 459000 468180 472827 476400 482355 485928 486000 495720 506175 514512 516375 520200 535950 539920 546669 550800 561816 571680 573665 578000 578826 583200 585225 595500 607410 612000 619650 624240 630436 643140 647904 650250 660960 674900 688398 688500 693600 702270 714600 728892 729000 749088 771768 780300 788045 794000 803925 809880 826200 842724 843625 857520 867000 893250 911115 917864 918000 936360 945654 952800 964710 971856 972000 975375 991440 1012350 1029024 1032597 1032750 1040400 1053405 1071900 1079840 1093338 1101600 1123632 1147330 1156000 1157652 1170450 1191000 1214820 1239300 1248480 1260872 1286280 1300500 1339875 1349800 1376796 1377000 1404540 1418481 1429200 1447065 1457784 1458000 1518525 1543536 1549125 1560600 1576090 1588000 1607850 1619760 1640007 1652400 1685448 1687250 1715040 1720995 1734000 1755675 1786500 1822230 1835728 1836000 1872720 1891308 1929420 1943712 1950750 1982880 2024700 2065194 2065500 2080800 2106810 2143800 2186676 2247264 2294660 2315304 2340900 2364135 2382000 2411775 2429640 2478600 2521744 2530875 2572560 2601000 2679353 2679750 2699600 2733345 2753592 2754000 2809080 2836962 2858400 2868325 2894130 2915568 2916000 2926125 3037050 3087072 3097791 3098250 3121200 3152180 3215700 3239520 3280014 3304800 3370896 3374500 3441990 3468000 3511350 3573000 3644460 3671456 3745440 3782616 3858840 3901500 3940225 4019625 4049400 4130388 4131000 4213620 4255443 4287600 4373352 4555575 4589320 4630608 4681800 4728270 4764000 4823550 4859280 4920021 4957200 5043488 5061750 5145120 5162985 5202000 5267025 5358706 5359500 5399200 5466690 5507184 5508000 5618160 5673924 5736650 5788260 5831136 5852250 6074100 6195582 6196500 6242400 6304360 6431400 6560028 6741792 6749000 6883980 7022700 7092405 7146000 7235325 7288920 7565232 7592625 7717680 7803000 7880450 8038059 8039250 8098800 8200035 8260776 8262000 8427240 8510886 8575200 8604975 8746704 8778375 9111150 9178640 9261216 9293373 9363600 9456540 9647100 9718560 9840042 9914400 10123500 10325970 10404000 10534050 10717412 10719000 10933380 11014368 11236320 11347848 11473300 11576520 11704500 11820675 12058875 12148200 12391164 12393000 12608720 12766329 12862800 13120056 13396765 13498000 13666725 13767960 14045400 14184810 14292000 14341625 14470650 14577840 15130464 15185250 15435360 15488955 15606000 15760900 16076118 16078500 16197600 16400070 16521552 16524000 16854480 17021772 17209950 17493408 17556750 18222300 18357280 18586746 18727200 18913080 19294200 19680084 19701125 20247000 20651940 21068100 21277215 21434824 21438000 21866760 22695696 22777875 22946600 23153040 23409000 23641350 24114177 24117750 24296400 24600105 24782328 24786000 25217440 25532658 25725600 25814925 26240112 26335125 26793530 26996000 27333450 27535920 27880119 28090800 28369620 28683250 28941300 29155680 30370500 30977910 31212000 31521800 32152236 32157000 32800140 33043104 33708960 34043544 34419900 35113500 35462025 36176625 36444600 37173492 37826160 38298987 38588400 39360168 39402250 40190295 40494000 41000175 41303880 42136200 42554430 42869648 42876000 43024875 43733520 45391392 45549001 45555750 45893200 46306080 46466865 46818000 47282700 48228354 48235500 48592800 49200210 49564656 49572000 51065316 51629850 52480224 52670250 53587060 54666900 55071840 55760238 56181600 56739240 57366500 57882600 59103375 60741000 61955820 62570773 63043600 63831645 64304472 64314000 65600280 66983825 68087088 68333625 68839800 70227000 70924050 72342531 72353250 72889200 74346984 75652320 76597974 77176800 77444775 78720336 78804500 80380590 80988000 82000350 82607760 83640357 84272400 85108860 85739296 86049750 87467040 91098002 91111500 91786400 92933730 93636000 94565400 96456708 96471000 98400420 99129312 102130632 103259700 105340500 106386075 107174120 109333800 111520476 113478480 114733000 114896961 115765200 118206750 120570885 121482000 123000525 123911640 125141546 126087200 127663290 128608944 128628000 129074625 131200560 133967650 136174176 136647003 136667250 137679600 139400595 140454000 141848100 144685062 144706500 145778400 148693968 153195948 154889550 157440672 157609000 160761180 164000700 165215520 167280714 168544800 170217720 172099500 177310125 182196004 182223000 185867460 187712319 189130800 191494935 192913416 192942000 196800840 200951475 204261264 205000875 206519400 210681000 212772150 214348240 217027593 218667600 223040952 226956960 227745005 229466000 229793922 231530400 232334325 236413500 241141770 242964000 246001050 247823280 250283092 255326580 257217888 258149250 262401120 267935300 273294006 273334500 275359200 278801190 280908000 283696200 289370124 289413000 297387936 306391896 309779100 312853865 315218000 319158225 321522360 328001400 334561428 334919125 340435440 344199000 354620250 361712655 364392008 364446000 371734920 375424638 378261600 382989870 385826832 385884000 387223875 393601680 401902950 408522528 409941009 410001750 413038800 418201785 421362000 425544300 428696480 434055186 437335200 446081904 455490010 458932000 459587844 464668650 472827000 482283540 492002100 495646560 500566184 510653160 516298500 531930375 535870600 546588012 546669000 557602380 563136957 567392400 574484805 578740248 578826000 602854425 612783792 615002625 619558200 625707730 630436000 638316450 643044720 651082779 656002800 669122856 669838250 680870880 683235015 688398000 697002975 709240500 723425310 728784016 728892000 743469840 750849276 765979740 771653664 774447750 787203360 803805900 819882018 820003500 826077600 836403570 842724000 851088600 868110372 892163808 910980020 919175688 929337300 938561595 945654000 957474675 964567080 984004200 1001132368 1004757375 1021306320 1032597000 1063703141 1063860750 1071741200 1085137965 1093176024 1093338000 1115204760 1126273914 1134784800 1138725025 1148969610 1157480496 1157652000 1161671625 1205708850 1225567584 1229823027 1230005250 1239116400 1251415460 1276632900 1286089440 1302165558 1312005600 1338245712 1339676500 1366470030 1376796000 1394005950 1418481000 1446850620 1457568032 1486939680 1501698552 1531959480 1548895500 1564269325 1595791125 1607611800 1639764036 1640007000 1672807140 1689410871 1702177200 1736220744 1808563275 1821960040 1838351376 1858674600 1877123190 1891308000 1914949350 1929134160 1953248337 1968008400 2002264736 2009514750 2042612640 2049705045 2065194000 2091008925 2127406282 2127721500 2143482400 2170275930 2186352048 2186676000 2230409520 2252547828 2277450050 2297939220 2314960992 2323343250 2411417700 2459646054 2460010500 2478232800 2502830920 2553265800 2604331116 2676491424 2679353000 2732940060 2788011900 2815684785 2836962000 2872424025 2893701240 3003397104 3014272125 3063918960 3097791000 3128538650 3191109423 3191582250 3215223600 3255413895 3279528072 3280014000 3345614280 3378821742 3404354400 3416175075 3472441488 3485014875 3617126550 3643920080 3676702752 3689469081 3717349200 3754246380 3829898700 3858268320 3906496674 3936016800 4019029500 4099410090 4130388000 4182017850 4254812564 4255443000 4340551860 4372704096 4460819040 4505095656 4554900100 4595878440 4646686500 4692807975 4787373375 4822835400 4919292108 4920021000 5005661840 5068232613 5106531600 5208662232 5318515705 5358706000 5425689825 5465880120 5576023800 5631369570 5673924000 5693625125 5744848050 5787402480 6006794208 6028544250 6127837920 6149115135 6195582000 6257077300 6382218846 6383164500 6430447200 6510827790 6559056144 6560028000 6691228560 6757643484 6832350150 6944882976 6970029750 7234253100 7287840160 7378938162 7434698400 7508492760 7659797400 7812993348 7821346625 8038059000 8198820180 8364035700 8447054355 8509625128 8510886000 8681103720 9010191312 9042816375 9109800200 9191756880 9293373000 9385615950 9573328269 9574746750 9645670800 9766241685 9838584216 9840042000 10011323680 10136465226 10213063200 10248525225 10417324464 10455044625 10637031410 10717412000 10851379650 10931760240 11068407243 11152047600 11262739140 11387250250 11489696100 11574804960 12057088500 12298230270 12391164000 12514154600 12764437692 12766329000 13021655580 13118112288 13382457120 13515286968 13664700300 13940059500 14078423925 14362120125 14468506200 14757876324 15016985520 15204697839 15319594800 15625986696 15642693250 15955547115 16076118000 16277069475 16397640360 16728071400 16894108710 17019250256 17021772000 17080875375 17362207440 18020382624 18082953397 18085632750 18219600400 18383513760 18447345405 18586746000 18771231900 19146656538 19149493500 19291341600 19532483370 19677168432 19680084000 20272930452 20497050450 20834648928 20910089250 21274062820 21702759300 21863520480 22136814486 22304095200 22525478280 22774500500 22979392200 23464039875 24114177000 24596460540 25028309200 25341163065 25528875384 25532658000 26043311160 26592578525 27030573936 27128449125 27329400600 27880119000 28156847850 28719984807 28724240250 28937012400 29515752648 30033971040 30409395678 30639189600 30745575675 31251973392 31285386500 31911094230 32152236000 32554138950 32795280720 33205221729 33456142800 33788217420 34038500512 34161750750 34724414880 36165906794 36171265500 36439200800 36894690810 37173492000 37542463800 38293313076 38298987000 39064966740 39354336864 40545860904 40994100900 41820178500 42235271775 42548125640 43405518600 44273628972 45050956560 45549001000 45614093517 45958784400 46928079750 47866641345 48228354000 48831208425 49192921080 50056618400 50682326130 51057750768 51065316000 51242626125 52086622320 53185157050 54061147872 54248860191 54256898250 54658801200 55342036215 55760238000 56313695700 57439969614 57448480500 57874024800 59031505296 60818791356 61491151350 62503946784 62570773000 63822188460 65108277900 65590561440 66410443458 66912285600 67576434840 68323501500 70392119625 72331813588 72342531000 73789381620 75084927600 76023489195 76586626152 76597974000 78129933480 79777735575 81091721808 81385347375 81988201800 83640357000 84470543550 85096251280 86159954421 86811037200 88547257944 90101913120 90414766985 91098002000 91228187034 91917568800 92236727025 93856159500 95733282690 96456708000 97662416850 98385842160 101364652260 102115501536 102485252250 104173244640 106370314100 108497720382 108513796500 109317602400 110684072430 111520476000 112627391400 114879939228 114896961000 118063010592 121637582712 122982302700 125141546000 126705815325 127644376920 130216555800 132820886916 132962892625 135152869680 136647003000 140784239250 143599924035 144663627176 144685062000 147578763240 150169855200 152046978390 153173252304 153195948000 153727878375 156259866960 159555471150 162183443616 162746580573 162770694750 163976403600 166026108645 167280714000 168941087100 170192502560 172319908842 173622074400 177094515888 180829533970 182196004000 182456374068 184473454050 187712319000 191466565380 195324833700 196771684320 202729304520 204970504500 211176358875 212740628200 216995440764 217027593000 221368144860 225254782800 228070467585 229759878456 229793922000 239333206725 243275165424 244156042125 245964605400 250283092000 253411630650 255288753840 258479863263 260433111600 265641773832 265925785250 270305739360 271244300955 273294006000 276710181075 281568478500 287199848070 289327254352 289370124000 295157526480 304093956780 306346504608 307455756750 312519733920 319110942300 325493161146 325541389500 327952807200 332052217290 334561428000 337882174200 344639817684 354189031776 361659067940 364912748136 368946908100 375424638000 380117445975 382933130760 390649667400 398888677875 405458609040 409941009000 422352717750 425481256400 430799772105 433990881528 434055186000 442736289720 450509565600 452073834925 456140935170 459519756912 459587844000 461183635125 478666413450 486550330848 488239741719 488312084250 491929210800 506823261300 510577507680 516959726526 520866223200 531283547664 531851570500 542488601910 546588012000 553420362150 563136957000 574399696140 578654508704 590315052960 608187913560 614911513500 633529076625 638221884600 650986322292 651082779000 664104434580 675764348400 689279635368 717999620175 723318135880 729825496272 737893816200 750849276000 760234891950 765866261520 775439589789 781299334800 797777355750 810917218080 813732902865 819882018000 830130543225 844705435500 850962512800 861599544210 867981763056 868110372000 885472579440 904147669850 912281870340 919039513824 922367270250 957332826900 976479483438 976624168500 983858421600 1013646522600 1033919453052 1062567095328 1063703141000 1084977203820 1106840724300 1126273914000 1140352337925 1148799392280 1196666033625 1216375827120 1229823027000 1267058153250 1276443769200 1292399316315 1301972644584 1302165558000 1328208869160 1351528696800 1356221504775 1378559270736 1383550905375 1435999240350 1446636271760 1459650992544 1464719225157 1475787632400 1520469783900 1531732523040 1550879179578 1562598669600 1595554711500 1627465805730 1639764036000 1660261086450 1689410871000 1723199088420 1735963526112 1770945158880 1808295339700 1824563740680 1844734540500 1900587229875 1914665653800 1952958966876 1953248337000 2027293045200 2067838906104 2127406282000 2153998860525 2169954407640 2213681448600 2252547828000 2260369174625 2280704675850 2297598784560 2393332067250 2432751654240 2441198708595 2459646054000 2534116306500 2552887538400 2584798632630 2603945289168 2604331116000 2656417738320 2712443009550 2757118541472 2767101810750 2871998480700 2893272543520 2929438450314 2951575264800 3040939567800 3101758359156 3191109423000 3254931611460 3320522172900 3378821742000 3446398176840 3589998100875 3616590679400 3649127481360 3689469081000 3801174459750 3829331307600 3877197948945 3905917933752 3906496674000 4054586090400 4068664514325 4135677812208 4150652716125 4254812564000 4307997721050 4339908815280 4394157675471 4427362897200 4520738349250 4561409351700 4595197569120 4786664134500 4882397417190 4919292108000 5068232613000 5169597265260 5207890578336 5312835476640 5424886019100 5534203621500 5701761689625 5743996961400 5858876900628 6081879135600 6203516718312 6382218846000 6461996581575 6509863222920 6641044345800 6757643484000 6781107523875 6892796353680 7179996201750 7233181358800 7298254962720 7323596125785 7378938162000 7602348919500 7658662615200 7754395897890 7811835867504 7812993348000 8137329028650 8271355624416 8301305432250 8615995442100 8679817630560 8788315350942 8854725794400 9041476698500 9122818703400 9573328269000 9764794834380 10136465226000 10339194530520 10769994302625 10849772038200 11068407243000 11403523379250 11487993922800 11717753801256 12163758271200 12205993542975 12407033436624 12764437692000 12923993163150 13019726445840 13182473026413 13282088691600 13562215047750 13785592707360 14359992403500 14466362717600 14647192251570 14757876324000 15204697839000 15508791795780 15623671735008 16274658057300 16602610864500 17231990884200 17576630701884 18082953397000 18245637406800 19146656538000 19385989744725 19529589668760 20272930452000 20343322571625 20678389061040 21539988605250 21699544076400 21970788377355 22136814486000 22807046758500 22975987845600 23435507602512 24411987085950 24814066873248 25847986326300 26039452891680 26364946052826 26564177383200 27124430095500 28719984807000 29294384503140 30409395678000 31017583591560 32309982907875 32549316114600 33205221729000 34463981768400 35153261403768 36165906794000 36491274813600 36617980628925 38293313076000 38771979489450 39059179337520 40686645143250 41356778122080 43079977210500 43399088152800 43941576754710 44273628972000 45614093517000 46871015205024 48823974171900 51695972652600 52729892105652 54248860191000 57439969614000 58588769006280 60818791356000 61029967714875 62035167183120 64619965815750 65098632229200 65912365132065 66410443458000 68927963536800 70306522807536 72331813588000 73235961257850 77543958978900 78118358675040 81373290286500 86159954421000 87883153509420 91228187034000 96929948723625 97647948343800 103391945305200 105459784211304 108497720382000 109853941886775 114879939228000 117177538012560 122059935429750 124070334366240 129239931631500 130197264458400 131824730264130 132820886916000 140613045615072 146471922515700 155087917957800 162746580573000 172319908842000 175766307018840 182456374068000 183089903144625 193859897447250 195295896687600 206783890610400 210919568422608 216995440764000 219707883773550 234355076025120 244119870859500 258479863263000 263649460528260 292943845031400 310175835915600 325493161146000 329561825660325 344639817684000 351532614037680 366179806289250 387719794894500 390591793375200 421839136845216 439415767547100 488239741719000 516959726526000 527298921056520 549269709433875 585887690062800 620351671831200 650986322292000 659123651320650 703065228075360 732359612578500 775439589789000 878831535094200 976479483438000 1033919453052000 1054597842113040 1098539418867750 1171775380125600 1318247302641300 1464719225157000 1550879179578000 1647809128301625 1757663070188400 1952958966876000 2109195684226080 2197078837735500 2636494605282600 2929438450314000 3101758359156000 3295618256603250 3515326140376800 4394157675471000 5272989210565200 5858876900628000 6591236513206500 8788315350942000 10545978421130400 13182473026413000 17576630701884000 26364946052826000 52729892105652000
- Sum of all divisors σ(n): 206866671342261840
- Sum of proper divisors (its aliquot sum) s(n): 154136779236609840
- 52729892105652000 is an abundant number, because the sum of its proper divisors (154136779236609840) is greater than itself. Its abundance is 101406887130957840
Bases of 52729892105652000
- Binary: 101110110101010110001110101110000000000010000111001000002
- Hexadecimal: 0xBB558EB8008720
- Base-36: EF76Q0Q8I00
Squares and roots of 52729892105652000
- 52729892105652000 squared (527298921056520002) is 2780441521473701110330345104000000
- 52729892105652000 cubed (527298921056520003) is 146612381433383148014738651365270388927808000000000
-
The
square root of 52729892105652000 is 229629902.4640562791 -
The
cube root of 52729892105652000 is 374989.3735789447
Scales and comparisons
How big is 52729892105652000?- 52,729,892,105,652,000 seconds is equal to 1,676,647,464 years, 36 weeks, 18 hours.
-
To count from 1 to 52,729,892,105,652,000 would take you about five billion, twenty-nine million, nine hundred forty-two thousand, three hundred ninety-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 52729892105652000 cubic inches would be around 31249.1 feet tall.
Recreational maths with 52729892105652000
- 52729892105652000 backwards is 00025650129892725
- The number of decimal digits it has is: 17
- The sum of 52729892105652000's digits is 63
- 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 52729892105652000 - Facts about the integer". Numbermatics.com. 2024. Web. 16 May 2024.
APA style:
Numbermatics. (2024). Number 52729892105652000 - Facts about the integer. Retrieved 16 May 2024, from https://numbermatics.com/n/52729892105652000/
Chicago style:
Numbermatics. 2024. "Number 52729892105652000 - Facts about the integer". https://numbermatics.com/n/52729892105652000/
The information we have on file for 52729892105652000 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 52729892105652000, math, Factors of 52729892105652000, curriculum, school, college, exams, university, Prime factorization of 52729892105652000, STEM, science, technology, engineering, physics, economics, calculator, fifty-two quadrillion, seven hundred twenty-nine trillion, eight hundred ninety-two billion, one hundred five million, six hundred fifty-two thousand.