1081275378720000
1,081,275,378,720,000 is an even composite number composed of seven prime numbers multiplied together.
1081275378720000 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two thousand, one hundred sixty divisors.
Prime factorization of 1081275378720000:
28 × 3 × 54 × 432 × 53 × 127 × 181
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 43 × 43 × 53 × 127 × 181)See below for interesting mathematical facts about the number 1081275378720000 from the Numbermatics database.
Names of 1081275378720000
- Cardinal: 1081275378720000 can be written as One quadrillion, eighty-one trillion, two hundred seventy-five billion, three hundred seventy-eight million, seven hundred twenty thousand.
Scientific notation
- Scientific notation: 1.08127537872 × 1015
Factors of 1081275378720000
Divisors of 1081275378720000
- Number of divisors d(n): 2160
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 43 48 50 53 60 64 75 80 86 96 100 106 120 125 127 128 129 150 159 160 172 181 192 200 212 215 240 250 254 256 258 265 300 318 320 344 362 375 381 384 400 424 430 480 500 508 516 530 543 600 625 635 636 640 645 688 724 750 762 768 795 800 848 860 905 960 1000 1016 1032 1060 1075 1086 1200 1250 1270 1272 1280 1290 1325 1376 1448 1500 1524 1590 1600 1696 1720 1810 1849 1875 1905 1920 2000 2032 2064 2120 2150 2172 2279 2400 2500 2540 2544 2580 2650 2715 2752 2896 3000 3048 3175 3180 3200 3225 3392 3440 3620 3698 3750 3810 3840 3975 4000 4064 4128 4240 4300 4344 4525 4558 4800 5000 5080 5088 5160 5300 5375 5430 5461 5504 5547 5792 6000 6096 6350 6360 6400 6450 6625 6731 6784 6837 6880 7240 7396 7500 7620 7783 7950 8000 8128 8256 8480 8600 8688 9050 9116 9245 9525 9593 9600 10000 10160 10176 10320 10600 10750 10860 10922 11008 11094 11395 11584 12000 12192 12700 12720 12900 13250 13462 13568 13575 13674 13760 14480 14792 15000 15240 15566 15875 15900 16000 16125 16256 16383 16512 16960 17200 17376 18100 18232 18490 19050 19186 19200 19875 20000 20193 20320 20352 20640 21200 21500 21720 21844 22188 22625 22790 22987 23168 23349 24000 24384 25400 25440 25800 26500 26875 26924 27150 27305 27348 27520 27735 28779 28960 29584 30000 30480 31132 31750 31800 32000 32250 32512 32766 33024 33125 33655 33920 34185 34400 34752 36200 36464 36980 38100 38372 38915 39750 40000 40386 40640 40704 41280 42400 43000 43440 43688 44376 45250 45580 45974 46225 46336 46698 47625 47965 48000 48768 50800 50880 51600 53000 53750 53848 54300 54610 54696 55040 55470 56975 57558 57920 59168 60000 60960 62264 63500 63600 64500 65532 66250 67310 67840 67875 68370 68800 68961 69504 72400 72928 73960 76200 76744 77830 79375 79500 80000 80625 80772 81280 81915 82560 84800 86000 86880 87376 88752 90500 91160 91948 92450 93396 95250 95930 96000 97536 97997 99375 100965 101600 101760 103200 106000 107500 107696 108600 109220 109392 110940 113125 113950 114935 115116 115840 116745 118336 120000 121920 124528 127000 127200 129000 131064 132500 134620 135750 136525 136740 137600 137922 138675 139008 143895 144800 145856 147920 152400 153488 155660 158750 159000 160000 161250 161544 162560 163830 165120 168275 169600 170925 172000 173760 174752 177504 181000 182320 183896 184900 186792 190500 191860 194575 195994 198750 201930 203200 203520 206400 212000 215000 215392 217200 218440 218784 221880 226250 227900 229870 230232 231125 231680 233490 234823 236672 238125 239825 240000 243840 249056 254000 254400 258000 262128 265000 269240 271500 273050 273480 275200 275844 277350 284875 287790 289433 289600 291712 293991 295840 304800 306976 311320 317500 318000 322500 323088 327660 334669 336550 339200 339375 341850 344000 344805 347520 349504 355008 362000 364640 367792 369800 373584 381000 383720 389150 391988 397500 403860 406400 409575 412499 412800 424000 430000 430784 434400 436880 437568 443760 452500 455800 459740 460464 462250 466980 469646 473344 476250 479650 480000 487680 489985 498112 504825 508000 508800 516000 524256 530000 538480 543000 546100 546960 551688 554700 569750 574675 575580 578866 579200 583424 583725 587982 591680 609600 613952 622640 635000 636000 645000 646176 655320 669338 673100 678750 682625 683700 688000 689610 693375 695040 699008 704469 710016 719475 724000 729280 735584 739600 747168 762000 767440 778300 783976 795000 807720 812800 819150 824998 825600 841375 848000 854625 860000 861568 868299 868800 873760 875136 887520 905000 911600 919480 920928 924500 933960 939292 952500 959300 972875 979970 988441 996224 1004007 1009650 1016000 1017600 1032000 1048512 1060000 1076960 1086000 1092200 1093920 1103376 1109400 1139500 1149350 1151160 1155625 1157732 1158400 1167450 1174115 1175964 1183360 1199125 1218311 1219200 1227904 1237497 1245280 1270000 1272000 1290000 1292352 1310640 1338676 1346200 1357500 1365250 1367400 1376000 1379220 1386750 1398016 1408938 1420032 1424375 1438950 1447165 1448000 1458560 1469955 1471168 1479200 1494336 1524000 1534880 1556600 1567952 1590000 1615440 1638300 1649996 1673345 1682750 1696000 1709250 1720000 1723136 1724025 1736598 1737600 1747520 1750272 1775040 1810000 1823200 1838960 1841856 1849000 1867920 1878584 1905000 1918600 1945750 1959940 1976882 1992448 2008014 2019300 2032000 2047875 2062495 2064000 2097024 2120000 2153920 2172000 2184400 2187840 2206752 2218800 2279000 2298700 2302320 2311250 2315464 2334900 2348230 2351928 2366720 2398250 2436622 2438400 2449925 2455808 2474994 2490560 2524125 2540000 2544000 2580000 2584704 2621280 2677352 2692400 2715000 2730500 2734800 2758440 2773500 2817876 2848750 2873375 2877900 2894330 2896000 2917120 2918625 2939910 2942336 2958400 2965323 2988672 3048000 3069760 3113200 3135904 3180000 3230880 3276600 3299992 3346690 3365500 3413125 3418500 3440000 3448050 3466875 3473196 3475200 3495040 3522345 3550080 3597375 3620000 3646400 3654933 3677920 3683712 3698000 3735840 3757168 3810000 3837200 3891500 3919880 3953764 4016028 4038600 4064000 4095750 4124990 4128000 4194048 4206875 4240000 4273125 4307840 4341495 4344000 4368800 4375680 4413504 4437600 4558000 4597400 4604640 4622500 4630928 4669800 4696460 4703856 4796500 4864375 4873244 4899850 4942205 4949988 4981120 5020035 5048250 5080000 5088000 5160000 5169408 5242560 5354704 5384800 5430000 5461000 5469600 5516880 5547000 5635752 5697500 5746750 5755800 5788660 5792000 5837250 5870575 5879820 5884672 5916800 5930646 5977344 5995625 6091555 6096000 6139520 6187485 6226400 6271808 6360000 6461760 6553200 6599984 6693380 6731000 6826250 6837000 6880000 6896100 6933750 6946392 6990080 7044690 7100160 7194750 7235825 7240000 7292800 7309866 7349775 7355840 7367424 7396000 7471680 7514336 7620000 7674400 7783000 7839760 7907528 8032056 8077200 8191500 8249980 8366725 8413750 8480000 8546250 8615680 8620125 8682990 8688000 8737600 8751360 8827008 8875200 9116000 9194800 9209280 9245000 9261856 9339600 9392920 9407712 9593000 9728750 9746488 9799700 9884410 9899976 9962240 10040070 10096500 10160000 10239375 10312475 10320000 10485120 10709408 10769600 10860000 10922000 10939200 11033760 11094000 11271504 11395000 11493500 11511600 11577320 11674500 11741150 11759640 11833600 11861292 11991250 12183110 12192000 12249625 12279040 12374970 12445619 12452800 12543616 12620625 12720000 12923520 13106400 13199968 13386760 13462000 13652500 13674000 13792200 13867500 13892784 14089380 14366875 14389500 14471650 14480000 14585600 14593125 14619732 14699550 14711680 14792000 14826615 14943360 15028672 15240000 15348800 15566000 15679520 15815056 16064112 16154400 16383000 16499960 16733450 16827500 17092500 17240250 17365980 17376000 17475200 17611725 17654016 17737457 17750400 17986875 18232000 18274665 18389600 18418560 18490000 18523712 18679200 18785840 18815424 19186000 19457500 19492976 19599400 19768820 19799952 20080140 20193000 20320000 20478750 20624950 20640000 20970240 21418816 21539200 21707475 21720000 21844000 21878400 22067520 22188000 22543008 22790000 22987000 23023200 23154640 23349000 23482300 23519280 23722584 23982500 24366220 24499250 24711025 24749940 24891238 24905600 25087232 25100175 25241250 25440000 25847040 26212800 26399936 26773520 26924000 27305000 27348000 27584400 27735000 27785568 28178760 28733750 28779000 28943300 28960000 29186250 29239464 29352875 29399100 29423360 29584000 29653230 29886720 30057344 30457775 30480000 30697600 30937425 31132000 31359040 31630112 32128224 32308800 32766000 32999920 33466900 33655000 34185000 34480500 34731960 34950400 35223450 35474914 35500800 35973750 36179125 36464000 36549330 36748875 36779200 36837120 36980000 37047424 37336857 37358400 37571680 37630848 38372000 38915000 38985952 39198800 39537640 39599904 40160280 40386000 40957500 41249900 41833625 42502963 42837632 43078400 43100625 43414950 43440000 43688000 43756800 44135040 44376000 45086016 45580000 45974000 46046400 46309280 46698000 46964600 47038560 47445168 47965000 48732440 48998500 49422050 49499880 49782476 49811200 50200350 50482500 51562375 52387373 52425600 52799872 53212371 53547040 53848000 54610000 54696000 55168800 55470000 55571136 56357520 57467500 57558000 57886600 58372500 58478928 58705750 58798200 59168000 59306460 60114688 60915550 60960000 61248125 61395200 61874850 62228095 62264000 62718080 63260224 64256448 64617600 65532000 65999840 66933800 67310000 68370000 68961000 69463920 70446900 70949828 71947500 72358250 72928000 73098660 73497750 73558400 73960000 74094848 74133075 74673714 74716800 75143360 75261696 76744000 77830000 77971904 78397600 79075280 79199808 80320560 80772000 81915000 82499800 83667250 85005926 85675264 86201250 86829900 86880000 87376000 88058625 88270080 88687285 88752000 90172032 91160000 91373325 91948000 92092800 92618560 93396000 93929200 94077120 94890336 95930000 97464880 97997000 98844100 98999760 99564952 100400700 100965000 103124750 104774746 104851200 105599744 106424742 107094080 107696000 108537375 109220000 109392000 110337600 110940000 111142272 112715040 114935000 115116000 115773200 116745000 116957856 117411500 117596400 118612920 121831100 122496250 123555125 123749700 124456190 124528000 125436160 125500875 126520448 127508889 128512896 129235200 131064000 131999680 133867600 134620000 136740000 137922000 138927840 140893800 141899656 143895000 144716500 146197320 146764375 146995500 147116800 147920000 148266150 149347428 149433600 150286720 152288875 153488000 154687125 155660000 155943808 156795200 157162119 158150560 158399616 160641120 161544000 163830000 164999600 167334500 170011852 172402500 173659800 174752000 176117250 177374570 177504000 180344064 180895625 182320000 182746650 183744375 183896000 184185600 185237120 186684285 186792000 187858400 188154240 189780672 191860000 194929760 195994000 197688200 197999520 199129904 200801400 201930000 206249500 209168125 209549492 212514815 212849484 214188160 215392000 217074750 218440000 218784000 220675200 221880000 222284544 225430080 229870000 230232000 231546400 233490000 233915712 234823000 235192800 237225840 243662200 244992500 247110250 247499400 248912380 249056000 251001750 253040896 255017778 257025792 257811875 261936865 262128000 263999360 266061855 267735200 269240000 273480000 275844000 277855680 281787600 283799312 287790000 289433000 292394640 293528750 293991000 295840000 296532300 298694856 300573440 304577750 306976000 309374250 311140475 311320000 311887616 313590400 314324238 316301120 316799232 321282240 323088000 327660000 329999200 334669000 340023704 344805000 347319600 352234500 354749140 361791250 364640000 365493300 367488750 367792000 370474240 370665375 373368570 373584000 375716800 376308480 379561344 383720000 389859520 391988000 395376400 395999040 398259808 401602800 403860000 412499000 418336250 419098984 425029630 425698968 428376320 434149500 436880000 440293125 441350400 443436425 443760000 450860160 456866625 459740000 460464000 463092800 466980000 467831424 469646000 470385600 474451680 487324400 489985000 494220500 494998800 497824760 502003500 510035556 515623750 523873730 524256000 527998720 532123710 535470400 538480000 542686875 546960000 551688000 555711360 563575200 567598624 575580000 578866000 584789280 587057500 587982000 593064600 597389712 609155500 617775625 618748500 622280950 622640000 627180800 627504375 628648476 632602240 637544445 642564480 646176000 655320000 659998400 669338000 680047408 689610000 694639200 704469000 709498280 723582500 730986600 734977500 735584000 741330750 746737140 747168000 751433600 759122688 761444375 767440000 773435625 779719040 783976000 785810595 790752800 791998080 796519616 803205600 807720000 824998000 836672500 838197968 850059260 851397936 868299000 873760000 880586250 886872850 887520000 901720320 913733250 919480000 920928000 926185600 933421425 933960000 935662848 939292000 940771200 948903360 974648800 979970000 988441000 989997600 995649520 1004007000 1020071112 1031247500 1047747460 1062574075 1064247420 1070940800 1076960000 1085373750 1093920000 1103376000 1111422720 1127150400 1135197248 1151160000 1157732000 1169578560 1174115000 1175964000 1186129200 1194779424 1218311000 1235551250 1237497000 1244561900 1245280000 1255008750 1257296952 1265204480 1275088890 1285128960 1309684325 1310640000 1319996800 1330309275 1338676000 1360094816 1379220000 1389278400 1408938000 1418996560 1447165000 1461973200 1469955000 1482661500 1493474280 1502867200 1522888750 1534880000 1546871250 1555702375 1559438080 1567952000 1571621190 1581505600 1583996160 1593039232 1606411200 1615440000 1649996000 1673345000 1676395936 1700118520 1702795872 1736598000 1761172500 1773745700 1827466500 1838960000 1852371200 1853326875 1866842850 1867920000 1878584000 1881542400 1897806720 1949297600 1959940000 1976882000 1979995200 1991299040 2008014000 2040142224 2062495000 2095494920 2125148150 2128494840 2141881600 2170747500 2206752000 2217182125 2252657039 2254300800 2270394496 2284333125 2302320000 2315464000 2339157120 2348230000 2351928000 2372258400 2389558848 2436622000 2471102500 2474994000 2489123800 2510017500 2514593904 2550177780 2619368650 2621280000 2639993600 2660618550 2677352000 2720189632 2758440000 2778556800 2817876000 2837993120 2894330000 2923946400 2939910000 2965323000 2986948560 3045777500 3093742500 3111404750 3135904000 3143242380 3163011200 3186078464 3187722225 3212822400 3230880000 3299992000 3346690000 3352791872 3400237040 3405591744 3473196000 3522345000 3547491400 3654933000 3677920000 3706653750 3733685700 3735840000 3757168000 3795613440 3898595200 3919880000 3929052975 3953764000 3959990400 3982598080 4016028000 4080284448 4124990000 4190989840 4250296300 4256989680 4341495000 4434364250 4505314078 4508601600 4540788992 4568666250 4604640000 4630928000 4667107125 4678314240 4696460000 4703856000 4744516800 4779117696 4873244000 4942205000 4949988000 4978247600 5020035000 5029187808 5100355560 5238737300 5312870375 5321237100 5354704000 5440379264 5516880000 5557113600 5635752000 5675986240 5788660000 5847892800 5879820000 5930646000 5973897120 6091555000 6187485000 6222809500 6286484760 6326022400 6375444450 6425644800 6548421625 6599984000 6651546375 6693380000 6705583744 6757971117 6800474080 6811183488 6946392000 7044690000 7094982800 7309866000 7413307500 7467371400 7514336000 7778511875 7797190400 7839760000 7858105950 7907528000 7919980800 7965196160 8032056000 8160568896 8249980000 8381979680 8500592600 8513979360 8682990000 8868728500 9010628156 9137332500 9261856000 9334214250 9392920000 9407712000 9489033600 9558235392 9746488000 9884410000 9899976000 9956495200 10040070000 10058375616 10200711120 10477474600 10625740750 10642474200 10709408000 10880758528 11033760000 11085910625 11263285195 11271504000 11351972480 11577320000 11695785600 11759640000 11861292000 11947794240 12183110000 12374970000 12445619000 12572969520 12750888900 13096843250 13199968000 13303092750 13386760000 13411167488 13515942234 13600948160 13622366976 13892784000 14089380000 14189965600 14619732000 14826615000 14934742800 15557023750 15679520000 15716211900 15815056000 15930392320 15938611125 16064112000 16321137792 16499960000 16763959360 17001185200 17027958720 17365980000 17737457000 18021256312 18274665000 18668428500 18785840000 18978067200 19492976000 19645264875 19768820000 19799952000 19912990400 20080140000 20116751232 20401422240 20954949200 21251481500 21284948400 22171821250 22526570390 22543008000 22703944960 23154640000 23335535625 23391571200 23519280000 23722584000 23895588480 24366220000 24749940000 24891238000 25145939040 25501777800 26193686500 26564351875 26606185500 26773520000 27031884468 27201896320 27785568000 28178760000 28379931200 29239464000 29653230000 29869485600 31114047500 31432423800 31630112000 31877222250 32128224000 32642275584 32742108125 32999920000 33257731875 33527918720 33789855585 34002370400 34055917440 34731960000 35474914000 36042512624 36549330000 37336857000 37571680000 38985952000 39290529750 39537640000 39599904000 39825980800 40160280000 40233502464 40802844480 41909898400 42502963000 42569896800 44343642500 45053140780 46309280000 46671071250 47038560000 47445168000 47791176960 48732440000 49499880000 49782476000 50291878080 51003555600 52387373000 53128703750 53212371000 53547040000 54063768936 54403792640 56316425975 56357520000 56759862400 58478928000 59306460000 59738971200 62228095000 62864847600 63754444500 65484216250 65999840000 66515463750 67055837440 67579711170 68004740800 68111834880 69463920000 70949828000 72085025248 73098660000 74673714000 78581059500 79075280000 79651961600 79693055625 80320560000 81605688960 83819796800 85005926000 85139793600 88687285000 90106281560 93342142500 94890336000 97464880000 98226324375 98999760000 99564952000 100583756160 102007111200 104774746000 106257407500 106424742000 108127537872 112632851950 112715040000 113519724800 116957856000 118612920000 119477942400 124456190000 125729695200 127508889000 130968432500 133030927500 135159422340 136009481600 138927840000 141899656000 144170050496 146197320000 149347428000 157162119000 158150560000 159386111250 160641120000 163211377920 167639593600 168949277925 170011852000 170279587200 177374570000 180212563120 186684285000 194929760000 196452648750 197999520000 199129904000 201167512320 204014222400 209549492000 212514815000 212849484000 216255075744 225265703900 237225840000 238955884800 248912380000 251459390400 255017778000 261936865000 266061855000 270318844680 272018963200 281582129875 283799312000 288340100992 292394640000 298694856000 314324238000 318772222500 335279187200 337898555850 340023704000 340559174400 354749140000 360425126240 373368570000 392905297500 398259808000 408028444800 419098984000 425029630000 425698968000 432510151488 450531407800 474451680000 497824760000 502918780800 510035556000 523873730000 532123710000 540637689360 563164259750 567598624000 576680201984 584789280000 597389712000 628648476000 637544445000 675797111700 680047408000 709498280000 720850252480 746737140000 785810595000 816056889600 838197968000 844746389625 850059260000 851397936000 865020302976 901062815600 995649520000 1005837561600 1020071112000 1047747460000 1064247420000 1081275378720 1126328519500 1194779424000 1257296952000 1275088890000 1351594223400 1360094816000 1407910649375 1418996560000 1441700504960 1493474280000 1571621190000 1676395936000 1689492779250 1700118520000 1702795872000 1730040605952 1802125631200 1991299040000 2040142224000 2095494920000 2128494840000 2162550757440 2252657039000 2514593904000 2550177780000 2703188446800 2815821298750 2837993120000 2883401009920 2986948560000 3143242380000 3378985558500 3400237040000 3604251262400 4080284448000 4190989840000 4223731948125 4256989680000 4325101514880 4505314078000 5029187808000 5100355560000 5406376893600 5631642597500 5973897120000 6286484760000 6757971117000 6800474080000 7208502524800 8381979680000 8447463896250 8513979360000 8650203029760 9010628156000 10200711120000 10812753787200 11263285195000 12572969520000 13515942234000 14417005049600 16894927792500 18021256312000 20401422240000 21625507574400 22526570390000 25145939040000 27031884468000 33789855585000 36042512624000 43251015148800 45053140780000 54063768936000 67579711170000 72085025248000 90106281560000 108127537872000 135159422340000 180212563120000 216255075744000 270318844680000 360425126240000 540637689360000 1081275378720000
- Sum of all divisors σ(n): 3801523300743168
- Sum of proper divisors (its aliquot sum) s(n): 2720247922023168
- 1081275378720000 is an abundant number, because the sum of its proper divisors (2720247922023168) is greater than itself. Its abundance is 1638972543303168
Bases of 1081275378720000
- Binary: 111101011101101010000010101101101001011101000000002
- Hexadecimal: 0x3D76A0ADA5D00
- Base-36: ANA31USBUO
Squares and roots of 1081275378720000
- 1081275378720000 squared (10812753787200002) is 1169156444626079428838400000000
- 1081275378720000 cubed (10812753787200003) is 1264180077445992743206042249678848000000000000
-
The
square root of 1081275378720000 is 32882751.9943206699 -
The
cube root of 1081275378720000 is 102638.9273382023
Scales and comparisons
How big is 1081275378720000?- 1,081,275,378,720,000 seconds is equal to 34,381,212 years, 22 weeks, 5 days, 18 hours, 40 minutes.
-
To count from 1 to 1,081,275,378,720,000 would take you about one hundred three million, one hundred forty-three thousand, six hundred thirty-seven 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 1081275378720000 cubic inches would be around 8553.2 feet tall.
Recreational maths with 1081275378720000
- 1081275378720000 backwards is 0000278735721801
- The number of decimal digits it has is: 16
- The sum of 1081275378720000's digits is 51
- 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 1081275378720000 - Facts about the integer". Numbermatics.com. 2024. Web. 27 September 2024.
APA style:
Numbermatics. (2024). Number 1081275378720000 - Facts about the integer. Retrieved 27 September 2024, from https://numbermatics.com/n/1081275378720000/
Chicago style:
Numbermatics. 2024. "Number 1081275378720000 - Facts about the integer". https://numbermatics.com/n/1081275378720000/
The information we have on file for 1081275378720000 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 1081275378720000, math, Factors of 1081275378720000, curriculum, school, college, exams, university, Prime factorization of 1081275378720000, STEM, science, technology, engineering, physics, economics, calculator, one quadrillion, eighty-one trillion, two hundred seventy-five billion, three hundred seventy-eight million, seven hundred twenty thousand.