361422607609924000
361,422,607,609,924,000 is an even composite number composed of five prime numbers multiplied together.
361422607609924000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one thousand, nine hundred forty-four divisors.
Prime factorization of 361422607609924000:
25 × 53 × 78 × 372 × 1072
(2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 7 × 7 × 7 × 7 × 7 × 7 × 7 × 7 × 37 × 37 × 107 × 107)See below for interesting mathematical facts about the number 361422607609924000 from the Numbermatics database.
Names of 361422607609924000
- Cardinal: 361422607609924000 can be written as Three hundred sixty-one quadrillion, four hundred twenty-two trillion, six hundred seven billion, six hundred nine million, nine hundred twenty-four thousand.
Scientific notation
- Scientific notation: 3.61422607609924 × 1017
Factors of 361422607609924000
Divisors of 361422607609924000
- Number of divisors d(n): 1944
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 25 28 32 35 37 40 49 50 56 70 74 80 98 100 107 112 125 140 148 160 175 185 196 200 214 224 245 250 259 280 296 343 350 370 392 400 428 490 500 518 535 560 592 686 700 740 749 784 800 856 875 925 980 1000 1036 1070 1120 1184 1225 1295 1369 1372 1400 1480 1498 1568 1712 1715 1750 1813 1850 1960 2000 2072 2140 2401 2450 2590 2675 2738 2744 2800 2960 2996 3424 3430 3500 3626 3700 3745 3920 3959 4000 4144 4280 4625 4802 4900 5180 5243 5350 5476 5488 5600 5920 5992 6125 6475 6845 6860 7000 7252 7400 7490 7840 7918 8288 8560 8575 9065 9250 9583 9604 9800 10360 10486 10700 10952 10976 11449 11984 12005 12250 12691 12950 13375 13690 13720 14000 14504 14800 14980 15836 16807 17120 17150 18130 18500 18725 19166 19208 19600 19795 20720 20972 21400 21904 22898 23968 24010 24500 25382 25900 26215 26750 27380 27440 27713 28000 29008 29600 29960 31672 32375 33614 34225 34300 36260 36701 37000 37450 38332 38416 39200 39590 41440 41944 42800 42875 43808 45325 45796 47915 48020 49000 50764 51800 52430 53500 54760 54880 55426 57245 58016 59920 60025 63344 63455 64750 67081 67228 68450 68600 72520 73402 74000 74900 76664 76832 79180 80143 83888 84035 85600 85750 88837 90650 91592 93625 95830 96040 98000 98975 101528 103600 104860 107000 109520 110852 114490 117649 119840 120050 126688 126910 129500 131075 134162 134456 136900 137200 138565 145040 146483 146804 148000 149800 153328 158360 160286 167776 168070 171125 171500 177674 181300 183184 183505 187250 191660 192080 193991 196000 197950 203056 207200 209720 214000 219040 221704 226625 228980 235298 239575 240100 253820 256907 259000 262150 268324 268912 273800 274400 277130 286225 290080 292966 293608 299600 300125 306656 316720 317275 320572 335405 336140 342250 343000 355348 362600 366368 367010 374500 383320 384160 387982 395900 400715 406112 419440 420175 423613 428000 443408 444185 453250 457960 469567 470596 479150 480200 494875 507640 513814 518000 524300 536648 537824 547600 554260 561001 572450 585932 587216 588245 599200 600250 621859 633440 634550 641144 655375 670810 672280 684500 686000 692825 710696 725200 732415 734020 749000 766640 775964 791800 801430 823543 838880 840350 847226 886816 888370 906500 915920 917525 939134 941192 958300 960400 969955 989750 1015280 1025381 1027628 1036000 1048600 1073296 1095200 1108520 1122002 1144900 1171864 1174432 1176490 1197875 1200500 1243718 1269100 1282288 1284535 1310750 1341620 1344560 1357937 1369000 1372000 1385650 1421392 1431125 1450400 1464830 1468040 1498000 1533280 1551928 1583600 1586375 1602860 1647086 1677025 1680700 1694452 1776740 1798349 1813000 1831840 1835050 1878268 1882384 1916600 1920800 1939910 1979500 2003575 2030560 2050762 2055256 2097200 2100875 2118065 2146592 2217040 2220925 2244004 2289800 2343728 2347835 2352980 2395750 2401000 2487436 2538200 2564576 2569070 2621500 2683240 2689120 2715874 2738000 2771300 2805005 2842784 2862250 2929660 2936080 2941225 2965291 2996000 3103856 3109295 3167200 3172750 3205720 3286969 3294172 3354050 3361400 3388904 3464125 3553480 3596698 3626000 3662075 3670100 3756536 3764768 3833200 3879820 3927007 3959000 4007150 4101524 4110512 4117715 4194400 4201750 4236130 4353013 4434080 4441850 4488008 4579600 4587625 4687456 4695670 4705960 4791500 4802000 4849775 4974872 5076400 5126905 5138140 5243000 5366480 5431748 5476000 5542600 5610010 5724500 5764801 5859320 5872160 5882450 5930582 6207712 6218590 6345500 6411440 6422675 6573938 6588344 6708100 6722800 6777808 6789685 6928250 7106960 7177667 7193396 7252000 7324150 7340200 7513072 7666400 7759640 7854014 7918000 8014300 8203048 8221024 8235430 8385125 8403500 8472260 8706026 8883700 8976016 8991745 9159200 9175250 9391340 9411920 9505559 9583000 9604000 9699550 9949744 10017875 10152800 10253810 10276280 10486000 10590325 10732960 10863496 11085200 11104625 11220020 11449000 11529602 11718640 11739175 11764900 11861164 12437180 12588443 12691000 12822880 12845350 13147876 13176688 13416200 13445600 13555616 13579370 13856500 14025025 14213920 14355334 14386792 14648300 14680400 14706125 14826455 15026144 15519280 15546475 15673681 15708028 15836000 16028600 16406096 16434845 16470860 16770250 16807000 16944520 17412052 17767400 17952032 17983490 18310375 18350500 18782680 18823840 19011118 19166000 19399100 19635035 19899488 20035750 20507620 20552560 20588575 20757037 20972000 21180650 21726992 21765065 22170400 22209250 22440040 22898000 23008783 23059204 23437280 23478350 23529800 23722328 24248875 24874360 25176886 25382000 25634525 25690700 26295752 26353376 26832400 27158740 27489049 27713000 28050050 28710668 28773584 28824005 29296600 29360800 29412250 29652910 30471091 31038560 31092950 31347362 31416056 32057200 32113375 32812192 32869690 32941720 33540500 33614000 33889040 33948425 34824104 35534800 35888335 35966980 36620750 36701000 37565360 38022236 38332000 38798200 39270070 40071500 41015240 41105120 41177150 41514074 42361300 43453984 43530130 44418500 44880080 44958725 45796000 46017566 46118408 46956700 47059600 47444656 47527795 48497750 49748720 50243669 50353772 50764000 51269050 51381400 52591504 52951625 53664800 54317480 54978098 55426000 56100100 57421336 57547168 57648010 58593200 58695875 58824500 59305820 60942182 62185900 62694724 62832112 62942215 64114400 64226750 65739380 65883440 66538913 67081000 67228000 67778080 67896850 69648208 70125125 71069600 71776670 71933960 73241500 73402000 74132275 75130720 76044472 77596400 77732375 78368405 78540140 80143000 82030480 82174225 82354300 83028148 84722600 87060260 88119101 88837000 89760160 89917450 92035132 92236816 93913400 94119200 94889312 95055590 96995500 98175175 99497440 100487338 100707544 102538100 102762800 102942875 103785185 105183008 105903250 108634960 108825325 109715767 109956196 110852000 112200200 114842672 115043915 115296020 117186400 117391750 117649000 118611640 121884364 124371800 125389448 125664224 125884430 128172625 128453500 131478760 131766880 133077826 134162000 135793700 137445245 139296416 140250250 143553340 143867920 144120025 145299259 146483000 146804000 148264550 152088944 152355455 155192800 155464750 156736810 157080280 160286000 161061481 164060960 164348450 164708600 166056296 169445200 169742125 174120520 176238202 177674000 179441675 179834900 184070264 184473632 187826800 190111180 192423343 193991000 196350350 200974676 201415088 205076200 205525600 205885750 207570370 211806500 213297637 217269920 217650650 219431534 219912392 224400400 224793625 229685344 230087830 230592040 234783500 235298000 237223280 237638975 243768728 248743600 250778896 251218345 251768860 256345250 256907000 262957520 266155652 268324000 271587400 274890490 280500500 287106680 287735840 288240050 290598518 292966000 296529100 304177888 304710910 310929500 313473620 314160560 314711075 320572000 322122962 328696900 329417200 332112592 332694565 338890400 339484250 348241040 351705683 352476404 355348000 358883350 359669800 368140528 370661375 375653600 380222360 384846686 387982000 391842025 392700700 401949352 402830176 410152400 410871125 411771500 415140740 423613000 426595274 435301300 438863068 439824784 440595505 448800800 449587250 460175660 461184080 465772391 469567000 470596000 474446560 475277950 487537456 490875875 497487200 501557792 502436690 503537720 512690500 513814000 518925925 525915040 532311304 543174800 544126625 548578835 549780980 561001000 574213360 575219575 576480100 581197036 585932000 593058200 609421820 616833707 621859000 626947240 628321120 629422150 644245924 657393800 658834400 664225184 665389130 678968500 687226225 696482080 703411366 704952808 717766700 719339600 720600125 726496295 736281056 741322750 760444720 761777275 768010369 769693372 775964000 783684050 785401400 803898704 805307405 820304800 821742250 823543000 830281480 847226000 853190548 870602600 877726136 879649568 881191010 897208375 899174500 920351320 922368160 931544782 939134000 950555900 962116715 975074912 981751750 1004873380 1007075440 1017094813 1025381000 1027628000 1037851850 1064622608 1066488185 1086349600 1088253250 1097157670 1099561960 1122002000 1127430367 1148426720 1150439150 1152960200 1162394072 1186116400 1188194875 1218843640 1233667414 1243718000 1253894480 1256091725 1258844300 1288491848 1314787600 1330778260 1346963401 1357937000 1374452450 1406822732 1409905616 1435533400 1438679200 1441200250 1452992590 1482645500 1520889440 1523554550 1536020738 1539386744 1567368100 1570802800 1573555375 1607797408 1610614810 1643484500 1647086000 1660562960 1663472825 1694452000 1706381096 1741205200 1755452272 1758528415 1762382020 1794416750 1798349000 1840702640 1863089564 1878268000 1901111800 1924233430 1959210125 1963503500 2009746760 2014150880 2034189626 2050762000 2075703700 2129245216 2132976370 2176506500 2194315340 2199123920 2202977525 2244004000 2254860734 2300878300 2305920400 2324788144 2328861955 2372232800 2376389750 2437687280 2461939781 2467334828 2487436000 2507788960 2512183450 2517688600 2576983696 2594629625 2629575200 2661556520 2693926802 2715874000 2742894175 2748904900 2813645464 2819811232 2871066800 2876097875 2882400500 2905985180 2965291000 3047109100 3072041476 3078773488 3084168535 3134736200 3141605600 3147110750 3221229620 3260406737 3286969000 3294172000 3321125920 3326945650 3412762192 3436131125 3482410400 3510904544 3517056830 3524764040 3588833500 3596698000 3632481475 3681405280 3726179128 3802223600 3808886375 3840051845 3848466860 3918420250 3927007000 4019493520 4026537025 4068379252 4101524000 4151407400 4265952740 4353013000 4388630680 4398247840 4405955050 4509721468 4601756600 4611840800 4649576288 4657723910 4752779500 4810583575 4875374560 4923879562 4934669656 5024366900 5035377200 5085474065 5153967392 5189259250 5323113040 5332440925 5376072583 5387853604 5431748000 5485788350 5497809800 5627290928 5637151835 5742133600 5752195750 5764801000 5811970360 5930582000 6094218200 6144082952 6157546976 6168337070 6269472400 6280458625 6294221500 6442459240 6520813474 6573938000 6653891300 6734817005 6825524384 6872262250 7034113660 7049528080 7119663691 7177667000 7193396000 7264962950 7452358256 7604447200 7617772750 7680103690 7696933720 7836840500 7854014000 7892012569 8038987040 8053074050 8136758504 8302814800 8317364125 8531905480 8706026000 8777261360 8792642075 8811910100 9019442936 9203513200 9315447820 9428743807 9505559000 9621167150 9847759124 9869339312 10048733800 10070754400 10170948130 10378518500 10646226080 10664881850 10752145166 10775707208 10971576700 10995619600 11014887625 11254581856 11274303670 11504391500 11529602000 11623940720 11644309775 11861164000 12188436400 12288165904 12309698905 12336674140 12538944800 12560917250 12588443000 12884918480 13041626948 13147876000 13307782600 13469634010 13714470875 13744524500 14068227320 14099056160 14239327382 14355334000 14529925900 14904716512 15235545500 15360207380 15393867440 15420842675 15673681000 15708028000 15784025138 16106148100 16273517008 16302033685 16605629600 16634728250 17063810960 17233578467 17412052000 17554522720 17585284150 17623820200 18038885872 18162407375 18407026400 18630895640 18857487614 19011118000 19200259225 19242334300 19695518248 19738678624 20097467600 20132685125 20341896260 20757037000 21329763700 21504290332 21551414416 21943153400 21991239200 22029775250 22548607340 22822847159 23008783000 23059204000 23247881440 23288619550 24052917875 24376872800 24576331808 24619397810 24673348280 25121834500 25176886000 25427370325 25769836960 26083253896 26615565200 26662204625 26880362915 26939268020 27428941750 27489049000 28136454640 28185759175 28478654764 28710668000 29059851800 30471091000 30720414760 30787734880 30841685350 31347362000 31568050276 32212296200 32547034016 32604067370 33269456500 33674085025 34127621920 34467156934 35170568300 35247640400 35598318455 36077771744 36324814750 37261791280 37632508081 37714975228 38022236000 38400518450 38484668600 39391036496 39460062845 40194935200 40265370250 40683792520 41514074000 42659527400 43008580664 43102828832 43886306800 43963210375 44059550500 45097214680 45645694318 46017566000 46577239100 47143719035 48105835750 49238795620 49346696560 49837645837 50243669000 50353772000 50854740650 52166507792 53231130400 53324409250 53760725830 53878536040 54857883500 54978098000 56272909280 56371518350 56957309528 58119703600 58221548875 60942182000 61440829520 61548494525 61683370700 62694724000 63136100552 64424592400 65208134740 66001206649 66538913000 67348170050 68934313868 70341136600 70495280800 71196636910 72649629500 74523582560 75265016162 75429950456 76801036900 76969337200 77104213375 78782072992 78920125690 80530740500 81367585040 81510168425 83028148000 85319054800 86017161328 86167892335 87772613600 87926420750 88119101000 90194429360 91291388636 92035132000 93154478200 94287438070 96001296125 96211671500 98477591240 98693393120 99675291674 100487338000 101709481300 104333015584 106648818500 107521451660 107757072080 109715767000 109956196000 112743036700 113914619056 114114235795 116239407200 116443097750 120635049269 121884364000 122881659040 123096989050 123366741400 126272201104 127136851625 128849184800 130416269480 132002413298 133077826000 134401814575 134696340100 137868627736 140682273200 140928795875 142393273820 145299259000 150530032324 150859900912 153602073800 153938674400 154208426750 157840251380 161061481000 162735170080 163020336850 168370425125 170638109600 172034322656 172335784670 175852841500 176238202000 177991592275 180388858720 182582777272 186308956400 188162540405 188574876140 192002592250 192423343000 196955182480 197300314225 199350583348 200974676000 203418962600 213297637000 215042903320 215514144160 219431534000 225486073400 227829238112 228228471590 232886195500 235718595175 241270098538 246193978100 246733482800 249188229185 252544402208 254273703250 260832538960 263427556567 264004826596 266155652000 268803629150 269392680200 275737255472 281364546400 281857591750 284786547640 290598518000 301060064648 301719801824 307204147600 307742472625 308416853500 315680502760 322122962000 326040673700 330006033245 336740850250 344671569340 348863520859 351705683000 352476404000 355983184550 365165554544 372617912800 376325080810 377149752280 384005184500 384846686000 393910364960 394600628450 398701166696 406837925200 407550842125 426595274000 430085806640 430839461675 438863068000 450972146800 456456943180 465772391000 471437190350 482540197076 492387956200 493466965600 498376458370 508547406500 521665077920 526855113134 528009653192 537607258300 538785360400 551474510944 563715183500 569573095280 570571178975 581197036000 602120129296 603175246345 614408295200 615484945250 616833707000 631361005520 644245924000 652081347400 660012066490 672009072875 673481700500 689343138680 697727041718 703411366000 711966369100 730331109088 752650161620 754299504560 768010369000 769693372000 789201256900 797402333392 813675850400 815101684250 844445344883 853190548000 860171613280 861678923350 889957961375 901944293600 912913886360 931544782000 940812702025 942874380700 965080394152 984775912400 986501571125 996752916740 1017094813000 1053710226268 1056019306384 1075214516600 1077570720800 1127430367000 1139146190560 1141142357950 1178592975875 1204240258592 1206350492690 1230969890500 1233667414000 1245941145925 1262722011040 1304162694800 1317137782835 1320024132980 1344018145750 1346963401000 1378686277360 1395454083436 1406822732000 1423932738200 1505300323240 1508599009120 1536020738000 1578402513800 1594804666784 1630203368500 1650030166225 1688890689766 1723357846700 1744317604295 1779915922750 1825827772720 1843992895969 1863089564000 1881625404050 1885748761400 1930160788304 1969551824800 1973003142250 1993505833480 2034189626000 2107420452536 2112038612768 2150429033200 2154197308375 2254860734000 2282284715900 2357185951750 2412700985380 2442044646013 2461939781000 2467334828000 2491882291850 2608325389600 2634275565670 2640048265960 2688036291500 2693926802000 2757372554720 2790908166872 2847865476400 2852855894875 3010600646480 3015876231725 3072041476000 3156805027600 3260406737000 3300060332450 3377781379532 3446715693400 3488635208590 3559831845500 3651655545440 3687985791938 3763250808100 3771497522800 3860321576608 3946006284500 3987011666960 4068379252000 4214840905072 4222226724415 4300858066400 4308394616750 4509721468000 4564569431800 4704063510125 4714371903500 4825401970760 4884089292026 4923879562000 4983764583700 5268551131340 5280096531920 5376072583000 5387853604000 5581816333744 5695730952800 5705711789750 6021201292960 6031752463450 6229705729625 6313610055200 6520813474000 6585688914175 6600120664900 6755562759064 6893431386800 6977270417180 7119663691000 7375971583876 7526501616200 7542995045600 7892012569000 7974023333920 8250150831125 8429681810144 8444453448830 8616789233500 8721588021475 9129138863600 9219964479845 9408127020250 9428743807000 9650803941520 9768178584052 9847759124000 9967529167400 10537102262680 10560193063840 10752145166000 11163632667488 11411423579500 12063504926900 12210223230065 12459411459250 12907950271783 13041626948000 13171377828350 13200241329800 13511125518128 13786862773600 13954540834360 14239327382000 14751943167752 15053003232400 15079381158625 15784025138000 16500301662250 16888906897660 17233578467000 17443176042950 18258277727200 18439928959690 18816254040500 18857487614000 19301607883040 19536357168104 19935058334800 21074204525360 21111133622075 21504290332000 22822847159000 24127009853800 24420446460130 24918822918500 25815900543566 26342755656700 26400482659600 27022251036256 27909081668720 28478654764000 29503886335504 30106006464800 30158762317250 31568050276000 32928444570875 33000603324500 33777813795320 34467156934000 34886352085900 36879857919380 37632508081000 37714975228000 39072714336208 39870116669600 42148409050720 42222267244150 43607940107375 45645694318000 46099822399225 48254019707600 48840892920260 49837645837000 51631801087132 52685511313400 52800965319200 55818163337440 59007772671008 60317524634500 61051116150325 64539751358915 65856889141750 66001206649000 67555627590640 68934313868000 69772704171800 73759715838760 75265016162000 78145428672416 84444534488300 87215880214750 90355651902481 91291388636000 92199644798450 96508039415200 97681785840520 99675291674000 103263602174264 105371022626800 105555668110375 120635049269000 122102232300650 129079502717830 131713778283500 132002413298000 135111255181280 139545408343600 147519431677520 150530032324000 168889068976600 174431760429500 180711303804962 184399289596900 195363571681040 199350583348000 206527204348528 210742045253600 211111336220750 230499111996125 241270098538000 244204464601300 258159005435660 263427556567000 264004826596000 279090816687200 295038863355040 305255580751625 322698756794575 337778137953200 348863520859000 361422607609924 368798579193800 390727143362080 413054408697056 422222672441500 451778259512405 460998223992250 482540197076000 488408929202600 516318010871320 526855113134000 610511161503250 645397513589150 675556275906400 697727041718000 722845215219848 737597158387600 844445344883000 903556519024810 921996447984500 976817858405200 1032636021742640 1053710226268000 1221022323006500 1290795027178300 1395454083436000 1445690430439696 1475194316775200 1613493783972875 1688890689766000 1807113038049620 1843992895969000 1953635716810400 2065272043485280 2258891297562025 2442044646013000 2581590054356600 2891380860879392 3226987567945750 3377781379532000 3614226076099240 3687985791938000 4517782595124050 4884089292026000 5163180108713200 6453975135891500 7228452152198480 7375971583876000 9035565190248100 9768178584052000 10326360217426400 11294456487810125 12907950271783000 14456904304396960 18071130380496200 22588912975620250 25815900543566000 36142260760992400 45177825951240500 51631801087132000 72284521521984800 90355651902481000 180711303804962000 361422607609924000
- Sum of all divisors σ(n): 1074819303116712972
- Sum of proper divisors (its aliquot sum) s(n): 713396695506788972
- 361422607609924000 is an abundant number, because the sum of its proper divisors (713396695506788972) is greater than itself. Its abundance is 351974087896864972
Bases of 361422607609924000
- Binary: 101000001000000011111110010010111000110001010001001101000002
- Hexadecimal: 0x50407F25C6289A0
- Base-36: 2QUPMDSJR5WG
Squares and roots of 361422607609924000
- 361422607609924000 squared (3614226076099240002) is 130626301291557093675743285776000000
- 361422607609924000 cubed (3614226076099240003) is 47211298435234148074582019810991985865641024000000000
-
The
square root of 361422607609924000 is 601184337.4622495933 -
The
cube root of 361422607609924000 is 712314.4780856605
Scales and comparisons
How big is 361422607609924000?- 361,422,607,609,924,000 seconds is equal to 11,492,120,968 years, 24 weeks, 2 days, 6 hours, 26 minutes, 40 seconds.
-
To count from 1 to 361,422,607,609,924,000 would take you about thirty-four billion, four hundred seventy-six million, three hundred sixty-two thousand, nine hundred five 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 361422607609924000 cubic inches would be around 59359.5 feet tall.
Recreational maths with 361422607609924000
- 361422607609924000 backwards is 000429906706224163
- The number of decimal digits it has is: 18
- The sum of 361422607609924000's digits is 61
- 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 361422607609924000 - Facts about the integer". Numbermatics.com. 2024. Web. 26 September 2024.
APA style:
Numbermatics. (2024). Number 361422607609924000 - Facts about the integer. Retrieved 26 September 2024, from https://numbermatics.com/n/361422607609924000/
Chicago style:
Numbermatics. 2024. "Number 361422607609924000 - Facts about the integer". https://numbermatics.com/n/361422607609924000/
The information we have on file for 361422607609924000 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 361422607609924000, math, Factors of 361422607609924000, curriculum, school, college, exams, university, Prime factorization of 361422607609924000, STEM, science, technology, engineering, physics, economics, calculator, three hundred sixty-one quadrillion, four hundred twenty-two trillion, six hundred seven billion, six hundred nine million, nine hundred twenty-four thousand.