17961553198416000
17,961,553,198,416,000 is an even composite number composed of eight prime numbers multiplied together.
17961553198416000 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of two thousand and forty-eight divisors.
Prime factorization of 17961553198416000:
27 × 3 × 53 × 17 × 41 × 233 × 1103 × 2089
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 17 × 41 × 233 × 1103 × 2089)See below for interesting mathematical facts about the number 17961553198416000 from the Numbermatics database.
Names of 17961553198416000
- Cardinal: 17961553198416000 can be written as Seventeen quadrillion, nine hundred sixty-one trillion, five hundred fifty-three billion, one hundred ninety-eight million, four hundred sixteen thousand.
Scientific notation
- Scientific notation: 1.7961553198416 × 1016
Factors of 17961553198416000
Divisors of 17961553198416000
- Number of divisors d(n): 2048
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 32 34 40 41 48 50 51 60 64 68 75 80 82 85 96 100 102 120 123 125 128 136 150 160 164 170 192 200 204 205 233 240 246 250 255 272 300 320 328 340 375 384 400 408 410 425 466 480 492 500 510 544 600 615 640 656 680 697 699 750 800 816 820 850 932 960 984 1000 1020 1025 1088 1103 1165 1200 1230 1275 1312 1360 1394 1398 1500 1600 1632 1640 1700 1864 1920 1968 2000 2040 2050 2089 2091 2125 2176 2206 2330 2400 2460 2550 2624 2720 2788 2796 3000 3075 3200 3264 3280 3309 3400 3485 3495 3728 3936 3961 4000 4080 4100 4178 4182 4250 4412 4660 4800 4920 5100 5125 5248 5440 5515 5576 5592 5825 6000 6150 6267 6375 6528 6560 6618 6800 6970 6990 7456 7872 7922 8000 8160 8200 8356 8364 8500 8824 9320 9553 9600 9840 10200 10250 10445 10455 10880 11030 11152 11184 11650 11883 12000 12300 12534 12750 13120 13236 13600 13940 13980 14912 15375 15744 15844 16000 16320 16400 16545 16712 16728 17000 17425 17475 17648 18640 18751 19106 19680 19805 20400 20500 20890 20910 22060 22304 22368 23300 23766 24000 24600 25068 25500 26240 26472 27200 27575 27880 27960 28659 29125 29824 30750 31335 31688 32640 32800 33090 33424 33456 34000 34850 34950 35296 35513 37280 37502 38212 39360 39610 40800 41000 41780 41820 44120 44608 44736 45223 46600 47532 47765 48000 49200 50136 51000 52225 52275 52944 54400 55150 55760 55920 56253 57318 58250 59415 61500 62670 63376 65600 66180 66848 66912 68000 69700 69900 70592 71026 74560 75004 76424 78720 79220 81600 82000 82725 83560 83640 85649 87125 87375 88240 89216 89472 90446 93200 93755 95064 95530 98400 99025 100272 102000 104450 104550 105888 106539 110300 111520 111840 112506 114636 116500 118830 123000 125340 126752 131200 132360 133696 133824 135669 136000 137875 139400 139800 141184 142052 143295 149120 150008 152848 156675 158440 162401 163200 164000 165450 167120 167280 171298 174250 174750 176480 177565 180892 186400 187510 190128 191060 196800 198050 200544 204000 208900 209100 211776 213078 220600 223040 223680 225012 226115 229272 233000 237660 238825 246000 250680 253504 256947 256999 261125 261375 264720 267392 267648 271338 272000 275750 278800 279600 281265 284104 286590 297075 300016 305696 313350 316880 324802 328000 330900 334240 334560 342596 348500 349500 352960 355130 361784 372800 375020 380256 382120 393600 396100 401088 408000 413625 417800 418200 423552 426156 428245 441200 446080 447360 450024 452230 458544 466000 468775 475320 477650 486737 487203 492000 495125 501360 507008 513894 513998 522250 522750 529440 532695 542676 551500 557600 559200 562530 568208 573180 594150 600032 611392 626700 633760 649604 656000 661800 668480 669120 678345 685192 697000 699000 705920 710260 716475 723568 745600 750040 760512 764240 768791 770997 783375 792200 802176 812005 816000 827250 835600 836400 852312 856490 882400 887825 900048 904460 917088 932000 937550 950640 955300 973474 974406 984000 990250 1002720 1027788 1027996 1044500 1045500 1058880 1065390 1085352 1103000 1115200 1118400 1125060 1130575 1136416 1146360 1188300 1194125 1200064 1222784 1253400 1267520 1284735 1284995 1299208 1323600 1336960 1338240 1356690 1370384 1394000 1398000 1406325 1420520 1432950 1447136 1456033 1460211 1485375 1500080 1521024 1528480 1537582 1541994 1566750 1584400 1624010 1654500 1671200 1672800 1704624 1712980 1764800 1775650 1800096 1808920 1834176 1864000 1875100 1901280 1910600 1946948 1948812 1968000 1980500 2005440 2055576 2055992 2089000 2091000 2117760 2130780 2141225 2170704 2206000 2230400 2236800 2250120 2261150 2272832 2292720 2304167 2306373 2343875 2376600 2388250 2400128 2433685 2436015 2506800 2535040 2569470 2569990 2598416 2647200 2663475 2713380 2740768 2788000 2796000 2812650 2841040 2865900 2894272 2912066 2920422 2970750 3000160 3056960 3075164 3083988 3133500 3168800 3248020 3309000 3342400 3345600 3391725 3409248 3425960 3529600 3551300 3582375 3600192 3617840 3668352 3728000 3750200 3802560 3821200 3843955 3854985 3893896 3897624 3961000 4010880 4060025 4111152 4111984 4178000 4182000 4261560 4282450 4341408 4368099 4368983 4412000 4439125 4500240 4522300 4545664 4585440 4608334 4612746 4687750 4753200 4776500 4867370 4872030 5013600 5138940 5139980 5196832 5294400 5326950 5426760 5481536 5576000 5592000 5625300 5652875 5682080 5731800 5788544 5824132 5840844 5941500 6000320 6113920 6150328 6167976 6267000 6337600 6423675 6424975 6496040 6618000 6684800 6691200 6783450 6818496 6851920 6912501 7031625 7102600 7164750 7200384 7235680 7280165 7301055 7500400 7605120 7642400 7687910 7709970 7787792 7795248 7922000 8120050 8222304 8223968 8274529 8356000 8364000 8523120 8564900 8682816 8736198 8737966 8824000 8878250 9000480 9044600 9170880 9216668 9225492 9375500 9506400 9553000 9734740 9744060 10027200 10277880 10279960 10393664 10536959 10588800 10653900 10706125 10853520 10963072 11152000 11184000 11250600 11305750 11364160 11463600 11520835 11531865 11648264 11681688 11883000 12000640 12168425 12180075 12300656 12335952 12534000 12675200 12847350 12849950 12992080 13106949 13236000 13317375 13566900 13636992 13703840 13825002 14063250 14205200 14329500 14471360 14560330 14602110 15000800 15284800 15375820 15419940 15575584 15590496 15844000 16240100 16444608 16447936 16549058 16712000 16728000 16958625 17046240 17129800 17365632 17472396 17475932 17648000 17756500 18000960 18089200 18341760 18433336 18450984 18751000 19012800 19106000 19219775 19274925 19469480 19488120 19956217 20054400 20300125 20555760 20559920 20787328 21073918 21307800 21412250 21707040 21840495 21844915 22501200 22611500 22728320 22927200 23041670 23063730 23296528 23363376 23766000 24336850 24360150 24601312 24671904 24823587 25068000 25694700 25699900 25984160 26213898 26472000 26634750 27133800 27407680 27650004 28126500 28410400 28659000 28942720 29120660 29204220 30001600 30569600 30751640 30839880 31151168 31180992 31610877 31688000 32118375 32124875 32480200 32889216 32895872 33098116 33424000 33456000 33917250 34092480 34259600 34562505 34944792 34951864 35513000 36001920 36178400 36400825 36505275 36866672 36901968 37502000 38025600 38212000 38439550 38549850 38938960 38976240 39170839 39912434 40600250 41111520 41119840 41372645 42147836 42615600 42824500 43414080 43680990 43689830 45002400 45223000 45854400 46083340 46127460 46593056 46726752 47532000 48673700 48720300 49202624 49343808 49647174 50136000 51389400 51399800 51968320 52427796 52684795 52944000 53269500 54267600 54815360 55300008 56253000 56820800 57318000 57604175 57659325 58241320 58408440 59868651 60003200 60842125 60900375 61503280 61679760 62302336 62361984 63221754 63376000 64236750 64249750 64960400 65534745 66196232 67834500 68184960 68519200 69125010 69889584 69903728 71026000 72356800 72801650 73010550 73733344 73803936 75004000 76424000 76879100 77099700 77877920 77952480 78341678 79824868 81200500 82223040 82239680 82745290 84295672 85231200 85649000 86828160 87361980 87379660 90004800 90446000 91708800 92166680 92254920 93186112 93453504 94470847 95064000 96098875 96374625 97347400 97440600 98405248 98687616 99294348 99781085 100272000 102778800 102799600 103936640 104855592 105369590 106539000 108535200 109202475 109224575 110600016 112506000 113641600 114636000 115208350 115318650 116482640 116816880 117512517 119737302 121684250 121800750 123006560 123359520 124117935 126443508 128473500 128499500 129920800 131069490 132392464 135669000 137038400 138250020 139779168 139807456 142052000 144713600 145603300 146021100 147466688 147607872 150008000 152848000 153758200 154199400 155755840 155904960 156683356 158054385 159649736 162401000 164446080 164479360 165490580 168591344 170462400 171298000 172812525 174723960 174759320 179128303 180009600 180892000 182004125 182526375 184333360 184509840 186372224 186907008 188941694 190128000 192197750 192749250 194694800 194881200 195854195 198588696 199562170 205557600 205599200 206863225 209711184 210739180 213078000 217070400 218404950 218449150 221200032 225012000 229272000 230416700 230637300 232965280 233633760 235025034 239474604 243368500 243601500 246013120 246719040 248235870 252887016 256947000 256999000 259841600 262138980 263423975 264784928 271338000 274076800 276500040 279558336 279614912 283412541 284104000 288020875 288296625 291206600 292042200 294933376 295215744 299343255 300016000 307516400 308398800 311511680 311809920 313366712 316108770 319299472 324802000 327673725 330981160 337182688 339255689 340924800 342596000 345625050 349447920 349518640 358256606 361784000 364008250 365052750 368666720 369019680 377883388 384395500 385498500 389389600 389762400 391708390 397177392 399124340 411115200 411198400 413726450 419422368 421478360 426156000 434140800 436809900 436898300 442400064 450024000 458544000 460833400 461274600 465930560 467267520 470050068 472354235 478949208 486737000 487203000 492026240 493438080 496471740 498905425 505774032 513894000 513998000 519683200 524277960 526847950 529569856 536870911 537384909 542676000 546012375 546122875 553000080 559116672 559229824 566825082 568208000 576041750 576593250 582413200 584084400 587562585 598686510 615032800 616797600 620589675 626733424 632217540 638598944 649604000 655347450 661962320 674365376 678511378 685192000 691250100 698895840 699037280 716513212 723568000 728016500 730105500 737333440 738039360 755766776 768791000 770997000 778779200 779524800 783416780 790271925 794354784 798248680 822230400 822396800 827452900 838844736 842956720 852312000 864062625 873619800 873796600 884800128 895641515 900048000 921666800 922549200 931861120 934535040 940100136 944708470 957898416 973474000 974406000 979270975 992943480 997810850 1011548064 1017767067 1027788000 1027996000 1034316125 1048555920 1053695900 1059139712 1073741822 1074769818 1085352000 1092024750 1092245750 1106000160 1133650164 1152083500 1153186500 1164826400 1168168800 1175125170 1197373020 1230065600 1233595200 1241179350 1253466848 1264435080 1277197888 1299208000 1310694900 1317119875 1323924640 1348730752 1357022756 1370384000 1382500200 1397791680 1398074560 1417062705 1433026424 1456033000 1460211000 1474666880 1476078720 1496716275 1511533552 1537582000 1541994000 1557558400 1559049600 1566833560 1580543850 1588709568 1596497360 1606004399 1610612733 1638368625 1654905800 1677689472 1685913440 1696278445 1704624000 1728125250 1747239600 1747593200 1791283030 1843333600 1845098400 1880200272 1889416940 1915796832 1946948000 1948812000 1958541950 1985886960 1995621700 2023096128 2035534134 2055576000 2055992000 2068632250 2097111840 2107391800 2147483644 2149539636 2170704000 2184049500 2184491500 2212000320 2267300328 2304167000 2306373000 2329652800 2336337600 2350250340 2361771175 2394746040 2460131200 2467190400 2482358700 2494527125 2506933696 2528870160 2554395776 2598416000 2621389800 2634239750 2647849280 2684354555 2686924545 2714045512 2765000400 2795583360 2796149120 2834125410 2866052848 2912066000 2920422000 2937812925 2993432550 3023067104 3075164000 3083988000 3102948375 3133667120 3161087700 3177419136 3192994720 3212008798 3221225466 3276737250 3309811600 3371826880 3392556890 3456250500 3494479200 3495186400 3582566060 3686667200 3690196800 3760400544 3778833880 3831593664 3893896000 3897624000 3917083900 3951359625 3971773920 3991243400 4046192256 4071068268 4111152000 4111984000 4137264500 4194223680 4214783600 4294967288 4299079272 4368099000 4368983000 4424000640 4478207575 4534600656 4608334000 4612746000 4659305600 4672675200 4700500680 4723542350 4789492080 4818013197 4896354875 4964717400 4989054250 5013867392 5057740320 5088835335 5242779600 5268479500 5295698560 5368709110 5373849090 5428091024 5530000800 5668250820 5732105696 5824132000 5840844000 5875625850 5986865100 6046134208 6150328000 6167976000 6205896750 6267334240 6322175400 6385989440 6424017596 6442450932 6553474500 6619623200 6743653760 6785113780 6912501000 6988958400 6990372800 7085313525 7165132120 7373334400 7380393600 7483581375 7520801088 7557667760 7663187328 7787792000 7795248000 7834167800 7902719250 7943547840 7982486800 8030021995 8053063665 8142136536 8274529000 8388447360 8429567200 8481392225 8589934576 8598158544 8736198000 8737966000 8956415150 9069201312 9126805487 9216668000 9225492000 9401001360 9447084700 9578984160 9636026394 9792709750 9929434800 9978108500 10115480640 10177670670 10485559200 10536959000 10737418220 10747698180 10856182048 11060001600 11336501640 11464211392 11648264000 11681688000 11751251700 11808855875 11973730200 12092268416 12300656000 12335952000 12411793500 12534668480 12644350800 12771978880 12848035192 12884901864 13106949000 13239246400 13421772775 13434622725 13570227560 13825002000 13977916800 13980745600 14170627050 14330264240 14689064625 14967162750 15041602176 15115335520 15668335600 15805438500 15887095680 15964973600 16060043990 16106127330 16284273072 16549058000 16859134400 16962784450 17179869152 17196317088 17472396000 17475932000 17912830300 18138402624 18253610974 18433336000 18450984000 18802002720 18894169400 19157968320 19272052788 19585419500 19858869600 19956217000 20230961280 20355341340 20971118400 21073918000 21474836440 21495396360 21712364096 22011707351 22120003200 22391037875 22673003280 22928422784 23296528000 23363376000 23502503400 23617711750 23947460400 24090065985 24823587000 25069336960 25288701600 25444176675 25696070384 25769803728 26213898000 26478492800 26843545550 26869245450 27140455120 27380416461 27650004000 28341254100 28660528480 29378129250 29934325500 30230671040 31336671200 31610877000 31929947200 32120087980 32212254660 32568546144 33098116000 33718268800 33925568900 34359738304 34392634176 34944792000 34951864000 35426567625 35825660600 36276805248 36507221948 36866672000 36901968000 37604005440 37788338800 38315936640 38544105576 39170839000 39717739200 39912434000 40150109975 40265318325 40710682680 41942236800 42147836000 42406961125 42949672880 42990792720 43424728192 44023414702 44782075750 45346006560 45634027435 47005006800 47235423500 47894920800 48180131970 49647174000 50577403200 50888353350 51392140768 51539607456 52427796000 53687091100 53738490900 54280910240 54760832922 55300008000 56682508200 57321056960 58756258500 59868651000 60461342080 62673342400 63221754000 63859894400 64240175960 64424509320 65137092288 66035122053 66196232000 67108863875 67173113625 67851137800 68719476608 68785268352 69889584000 69903728000 70853135250 71651321200 73014443896 75208010880 75576677600 77088211152 78341678000 79435478400 79824868000 80300219950 80530636650 81421365360 84295672000 84813922250 85899345760 85981585440 88046829404 89564151500 90692013120 91268054870 94010013600 94470847000 95789841600 96360263940 99294348000 101154806400 101776706700 102784281536 103079214912 104855592000 107374182200 107476981800 108561820480 109521665844 110058536755 110600016000 113365016400 114642113920 117512517000 119737302000 120450329925 125346684800 126443508000 127220883375 128480351920 128849018640 130274184576 132070244106 132392464000 134217727750 134346227250 135702275600 136902082305 141706270500 143302642400 146028887792 151153355200 154176422304 156683356000 159649736000 160600439900 161061273300 162842730720 168591344000 169627844500 171798691520 171963170880 176093658808 179128303000 181384026240 182536109740 188020027200 188941694000 191579683200 192720527880 198588696000 200750549875 201326591625 203553413400 205568563072 206158429824 209711184000 214748364400 214953963600 217123640960 219043331688 220117073510 226730032800 228170137175 235025034000 239474604000 240900659850 252887016000 254441766750 256960703840 257698037280 264140488212 268435455500 268692454500 271404551200 273804164610 283412541000 286605284800 292057775584 302306710400 308352844608 313366712000 319299472000 321200879800 322122546600 325685461440 330175610265 339255689000 343597383040 343926341760 352187317616 358256606000 365072219480 374199024967 376040054400 377883388000 385441055760 397177392000 401501099750 402653183250 407106826800 429496728800 429907927200 438086663376 440234147020 453460065600 456340274350 470050068000 478949208000 481801319700 505774032000 508883533500 513921407680 515396074560 528280976424 536870911000 537384909000 542809102400 547608329220 550292683775 566825082000 573210569600 584115551168 602251649625 616705689216 626733424000 642401759600 644245093200 651370922880 660351220530 678511378000 684510411525 704374635232 716513212000 730144438960 748398049934 755766776000 770882111520 803002199500 805306366500 814213653600 858993457600 859815854400 876173326752 880468294040 906920131200 912680548700 940100136000 957898416000 963602639400 1017767067000 1027842815360 1030792149120 1056561952848 1073741822000 1074769818000 1085618204800 1095216658440 1100585367550 1122597074901 1133650164000 1140850685875 1168231102336 1204503299250 1284803519200 1288490186400 1320702441060 1357022756000 1369020823050 1408749270464 1433026424000 1460288877920 1496796099868 1511533552000 1541764223040 1606004399000 1610612733000 1628427307200 1650878051325 1717986915200 1719631708800 1752346653504 1760936588080 1825361097400 1870995124835 1880200272000 1927205278800 2035534134000 2113123905696 2147483644000 2149539636000 2190433316880 2201170735100 2245194149802 2267300328000 2281701371750 2409006598500 2569607038400 2576980372800 2641404882120 2714045512000 2738041646100 2751463418875 2817498540928 2866052848000 2920577755840 2993592199736 3083528446080 3212008798000 3221225466000 3256854614400 3301756102650 3422552057625 3504693307008 3521873176160 3650722194800 3741990249670 3854410557600 4071068268000 4226247811392 4294967288000 4299079272000 4380866633760 4402341470200 4490388299604 4534600656000 4563402743500 4818013197000 5139214076800 5153960745600 5282809764240 5428091024000 5476083292200 5502926837750 5612985374505 5841155511680 5987184399472 6424017596000 6442450932000 6603512205300 6845104115250 7043746352320 7301444389600 7483980499340 7708821115200 8142136536000 8254390256625 8452495622784 8589934576000 8598158544000 8761733267520 8804682940400 8980776599208 9126805487000 9354975624175 9636026394000 10565619528480 10952166584400 11005853675500 11225970749010 11974368798944 12848035192000 12884901864000 13207024410600 13690208230500 14087492704640 14602888779200 14967960998680 15417642230400 16284273072000 16508780513250 17523466535040 17609365880800 17961553198416 18253610974000 18709951248350 19272052788000 21131239056960 21904333168800 22011707351000 22451941498020 23948737597888 25696070384000 25769803728000 26414048821200 27380416461000 28064926872525 29205777558400 29935921997360 33017561026500 35218731761600 35923106396832 36507221948000 37419902496700 38544105576000 42262478113920 43808666337600 44023414702000 44903882996040 46774878120875 47897475195776 52828097642400 54760832922000 56129853745050 59871843994720 66035122053000 70437463523200 71846212793664 73014443896000 74839804993400 77088211152000 87617332675200 88046829404000 89807765992080 93549756241750 105656195284800 109521665844000 112259707490100 119743687989440 132070244106000 140324634362625 143692425587328 146028887792000 149679609986800 176093658808000 179615531984160 187099512483500 211312390569600 219043331688000 224519414980200 239487375978880 264140488212000 280649268725250 299359219973600 352187317616000 359231063968320 374199024967000 438086663376000 449038829960400 528280976424000 561298537450500 598718439947200 718462127936640 748398049934000 898077659920800 1056561952848000 1122597074901000 1197436879894400 1496796099868000 1796155319841600 2245194149802000 2993592199736000 3592310639683200 4490388299604000 5987184399472000 8980776599208000 17961553198416000
- Sum of all divisors σ(n): 64949794682572800
- Sum of proper divisors (its aliquot sum) s(n): 46988241484156800
- 17961553198416000 is an abundant number, because the sum of its proper divisors (46988241484156800) is greater than itself. Its abundance is 29026688285740800
Bases of 17961553198416000
- Binary: 1111111100111111101111111111100000000110000000100000002
- Hexadecimal: 0x3FCFEFFE018080
- Base-36: 4WUU7MKRXXC
Squares and roots of 17961553198416000
- 17961553198416000 squared (179615531984160002) is 322617393299528039464909056000000
- 17961553198416000 cubed (179615531984160003) is 5794709472483770464754211127993363255296000000000
-
The
square root of 17961553198416000 is 134020719.2877877371 -
The
cube root of 17961553198416000 is 261887.4154433069
Scales and comparisons
How big is 17961553198416000?- 17,961,553,198,416,000 seconds is equal to 571,121,832 years, 50 weeks, 5 days, 21 hours, 20 minutes.
-
To count from 1 to 17,961,553,198,416,000 would take you about one billion, seven hundred thirteen million, three hundred sixty-five thousand, four hundred ninety-eight 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 17961553198416000 cubic inches would be around 21824 feet tall.
Recreational maths with 17961553198416000
- 17961553198416000 backwards is 00061489135516971
- The number of decimal digits it has is: 17
- The sum of 17961553198416000's digits is 66
- 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 17961553198416000 - Facts about the integer". Numbermatics.com. 2024. Web. 24 June 2024.
APA style:
Numbermatics. (2024). Number 17961553198416000 - Facts about the integer. Retrieved 24 June 2024, from https://numbermatics.com/n/17961553198416000/
Chicago style:
Numbermatics. 2024. "Number 17961553198416000 - Facts about the integer". https://numbermatics.com/n/17961553198416000/
The information we have on file for 17961553198416000 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 17961553198416000, math, Factors of 17961553198416000, curriculum, school, college, exams, university, Prime factorization of 17961553198416000, STEM, science, technology, engineering, physics, economics, calculator, seventeen quadrillion, nine hundred sixty-one trillion, five hundred fifty-three billion, one hundred ninety-eight million, four hundred sixteen thousand.