999288955350000
999,288,955,350,000 is an even composite number composed of six prime numbers multiplied together.
What does the number 999288955350000 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 2160 divisors.
999288955350000 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two thousand, one hundred sixty divisors.
Prime factorization of 999288955350000:
24 × 33 × 55 × 72 × 41 × 6072
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 5 × 5 × 5 × 5 × 7 × 7 × 41 × 607 × 607)See below for interesting mathematical facts about the number 999288955350000 from the Numbermatics database.
Names of 999288955350000
- Cardinal: 999288955350000 can be written as Nine hundred ninety-nine trillion, two hundred eighty-eight billion, nine hundred fifty-five million, three hundred fifty thousand.
Scientific notation
- Scientific notation: 9.9928895535 × 1014
Factors of 999288955350000
Divisors of 999288955350000
- Number of divisors d(n): 2160
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 35 36 40 41 42 45 48 49 50 54 56 60 63 70 72 75 80 82 84 90 98 100 105 108 112 120 123 125 126 135 140 144 147 150 164 168 175 180 189 196 200 205 210 216 225 240 245 246 250 252 270 280 287 294 300 315 328 336 350 360 369 375 378 392 400 410 420 432 441 450 490 492 500 504 525 540 560 574 588 600 607 615 625 630 656 675 700 720 735 738 750 756 784 820 840 861 875 882 900 945 980 984 1000 1008 1025 1050 1080 1107 1125 1148 1176 1200 1214 1225 1230 1250 1260 1323 1350 1400 1435 1470 1476 1500 1512 1575 1640 1680 1722 1750 1764 1800 1821 1845 1875 1890 1960 1968 2000 2009 2050 2100 2160 2205 2214 2250 2296 2352 2428 2450 2460 2500 2520 2583 2625 2646 2700 2800 2870 2940 2952 3000 3024 3035 3075 3125 3150 3280 3375 3444 3500 3528 3600 3642 3675 3690 3750 3780 3920 4018 4100 4200 4249 4305 4375 4410 4428 4500 4592 4725 4856 4900 4920 5000 5040 5125 5166 5250 5292 5400 5463 5535 5625 5740 5880 5904 6000 6027 6070 6125 6150 6250 6300 6615 6750 6888 7000 7056 7175 7284 7350 7380 7500 7560 7749 7875 8036 8200 8400 8498 8610 8750 8820 8856 9000 9105 9225 9375 9450 9712 9800 9840 10000 10045 10250 10332 10500 10584 10800 10926 11025 11070 11250 11480 11760 12054 12140 12250 12300 12500 12600 12747 12915 13125 13230 13500 13776 14000 14350 14568 14700 14760 15000 15120 15175 15375 15498 15750 16072 16389 16400 16875 16996 17220 17500 17640 17712 18000 18081 18210 18375 18450 18750 18900 19600 20090 20500 20664 21000 21168 21245 21525 21852 21875 22050 22140 22500 22960 23625 24108 24280 24500 24600 24887 25000 25200 25494 25625 25830 26250 26460 27000 27315 27675 28125 28700 29136 29400 29520 29743 30000 30135 30350 30625 30750 30996 31500 32144 32778 33075 33750 33992 34440 35000 35280 35875 36162 36420 36750 36900 37500 37800 38241 38745 39375 40180 41000 41328 42000 42490 43050 43704 43750 44100 44280 45000 45525 46125 47250 48216 48560 49000 49200 49774 50000 50225 50988 51250 51660 52500 52920 54000 54243 54630 55125 55350 56250 57400 58800 59486 60270 60700 61250 61500 61992 63000 63735 64575 65556 65625 66150 67500 67984 68880 70000 71750 72324 72840 73500 73800 74661 75000 75600 75875 76482 76875 77490 78750 80360 81945 82000 84375 84980 86100 87408 87500 88200 88560 89229 90000 90405 91050 91875 92250 94500 96432 98000 99548 100450 101976 102500 103320 105000 105840 106225 107625 108486 109260 110250 110700 112500 114723 114800 118125 118972 120540 121400 122500 123000 123984 124435 126000 127470 128125 129150 131112 131250 132300 135000 136575 138375 143500 144648 145680 147000 147600 148715 149322 150000 150675 151750 152964 153125 153750 154980 157500 160720 163890 165375 168750 169960 172200 174209 175000 176400 178458 179375 180810 182100 183750 184500 189000 191205 193725 196875 199096 200900 203952 205000 206640 210000 212450 215250 216972 218520 220500 221400 223983 225000 227625 229446 230625 236250 237944 241080 242800 245000 246000 248870 251125 254940 256250 258300 262224 262500 264600 267687 270000 271215 273150 275625 276750 287000 289296 294000 297430 298644 301350 303500 305928 306250 307500 309960 315000 318675 322875 327780 330750 337500 339920 344400 348418 350000 356916 358750 361620 364200 367500 368449 369000 373305 378000 379375 382410 384375 387450 393750 398192 401800 409725 410000 424900 430500 433944 437040 441000 442800 446145 447966 450000 452025 455250 458892 459375 461250 472500 475888 482160 490000 497740 502250 509880 512500 516600 522627 525000 529200 531125 535374 538125 542430 546300 551250 553500 573615 574000 590625 594860 597288 602700 607000 611856 612500 615000 619920 622175 630000 637350 645750 655560 661500 671949 675000 682875 691875 696836 713832 717500 723240 728400 735000 736898 738000 743575 746610 753375 758750 764820 768750 774900 787500 803061 803600 819450 826875 849800 861000 867888 871045 882000 892290 895932 896875 904050 910500 917784 918750 922500 945000 956025 968625 995480 1004500 1019760 1025000 1033200 1045254 1050000 1062250 1070748 1076250 1084860 1092600 1102500 1105347 1107000 1119915 1138125 1147230 1153125 1181250 1189720 1194576 1205400 1214000 1219463 1225000 1230000 1244350 1255625 1274700 1291500 1311120 1323000 1338435 1343898 1350000 1356075 1365750 1378125 1383750 1393672 1427664 1435000 1446480 1470000 1473796 1487150 1493220 1506750 1517500 1529640 1537500 1549800 1567881 1575000 1593375 1606122 1614375 1638900 1653750 1699600 1722000 1742090 1784580 1791864 1793750 1808100 1821000 1835568 1837500 1842245 1845000 1866525 1890000 1896875 1912050 1937250 1990960 2009000 2048625 2050000 2090508 2124500 2141496 2152500 2169720 2185200 2205000 2210694 2214000 2230725 2239830 2260125 2276250 2294460 2306250 2362500 2379440 2410800 2438926 2450000 2488700 2511250 2549400 2579143 2583000 2613135 2646000 2655625 2676870 2687796 2690625 2712150 2731500 2756250 2767500 2787344 2868075 2870000 2947592 2974300 2986440 3013500 3035000 3059280 3075000 3099600 3110875 3135762 3150000 3186750 3212244 3228750 3277800 3307500 3316041 3359745 3414375 3459375 3484180 3569160 3583728 3587500 3616200 3642000 3658389 3675000 3684490 3690000 3717875 3733050 3766875 3793750 3824100 3874500 4015305 4018000 4097250 4134375 4181016 4249000 4282992 4305000 4339440 4355225 4410000 4421388 4461450 4479660 4520250 4552500 4588920 4612500 4703643 4725000 4780125 4843125 4877852 4977400 5022500 5098800 5158286 5166000 5226270 5311250 5353740 5375592 5381250 5424300 5463000 5512500 5526735 5535000 5599575 5690625 5736150 5895184 5948600 5972880 6027000 6070000 6097315 6150000 6221750 6271524 6278125 6373500 6424488 6457500 6555600 6615000 6632082 6692175 6719490 6780375 6828750 6918750 6968360 7138320 7175000 7232400 7316778 7350000 7368980 7435750 7466100 7533750 7587500 7648200 7737429 7749000 7839405 7966875 8030610 8071875 8194500 8268750 8362032 8498000 8610000 8710450 8842776 8922900 8959320 9040500 9105000 9177840 9211225 9225000 9332625 9407286 9450000 9560250 9686250 9755704 9948123 9954800 10045000 10243125 10316572 10452540 10622500 10707480 10751184 10762500 10848600 10926000 10975167 11025000 11053470 11070000 11153625 11199150 11300625 11381250 11472300 11897200 12054000 12194630 12443500 12543048 12556250 12747000 12848976 12895715 12915000 13065675 13230000 13264164 13278125 13384350 13438980 13560750 13657500 13837500 13936720 14340375 14350000 14633556 14737960 14871500 14932200 15067500 15106409 15175000 15296400 15474858 15498000 15554375 15678810 15933750 16061220 16143750 16389000 16537500 16580205 16798725 17071875 17420900 17685552 17845800 17918640 18054001 18081000 18210000 18291945 18422450 18450000 18589375 18665250 18814572 18834375 19120500 19372500 19511408 19896246 20076525 20090000 20486250 20633144 20905080 21245000 21414960 21525000 21697200 21776125 21950334 22050000 22106940 22307250 22398300 22601250 22762500 22944600 23212287 23518215 23900625 24215625 24389260 24887000 25086096 25112500 25494000 25791430 25830000 26131350 26528328 26556250 26768700 26877960 27121500 27315000 27633675 27675000 27997875 28680750 29267112 29475920 29743000 29864400 30135000 30212818 30350000 30486575 30949716 31108750 31357620 31867500 32122440 32287500 32778000 32925501 33075000 33160410 33460875 33597450 33901875 34143750 34841800 35691600 36108002 36162000 36583890 36844900 37178750 37330500 37629144 37668750 38241000 38687145 38745000 39197025 39792492 39834375 40153050 40972500 41266288 41810160 42490000 43050000 43552250 43900668 44213880 44614500 44796600 45202500 45319227 45525000 45889200 46056125 46424574 46663125 47036430 47801250 48431250 48778520 49740615 49774000 50225000 51215625 51582860 52262700 53056656 53112500 53537400 53755920 54162003 54243000 54630000 54875835 55267350 55350000 55768125 55995750 56503125 57361500 58534224 59486000 60270000 60425636 60973150 61899432 62217500 62715240 63735000 64244880 64478575 64575000 65328375 65851002 66150000 66320820 66921750 67194900 67803750 68287500 69636861 69683600 71701875 72216004 73167780 73689800 74357500 74661000 75258288 75337500 75532045 76482000 77374290 77490000 77771875 78394050 79584984 79668750 80306100 81945000 82901025 83993625 87104500 87801336 88427760 89229000 89593200 90270005 90405000 90638454 91050000 91459725 92112250 92849148 92946875 93326250 94072860 95602500 96862500 97557040 99481230 100382625 100450000 102431250 103165720 104525400 105744863 106225000 107074800 108324006 108486000 108880625 109751670 110534700 111536250 111991500 113006250 114723000 116061435 117591075 119503125 120851272 121946300 123798864 124435000 125430480 127470000 128957150 129150000 130656750 131702004 132641640 133843500 134389800 135607500 135957681 136575000 138168375 139273722 139989375 143403750 144432008 146335560 147379600 148715000 149322000 150675000 151064090 152432875 154748580 155543750 156788100 159169968 159337500 160612200 162486009 163890000 164627505 165802050 167304375 167987250 169509375 174209000 175602672 178458000 180540010 180810000 181276908 182919450 184224500 185698296 185893750 186652500 188145720 191205000 193435725 193725000 195985125 198962460 200765250 204862500 206331440 209050800 211489726 212450000 216648012 217761250 219503340 221069400 223072500 223983000 226012500 226596135 229446000 230280625 232122870 233315625 235182150 239006250 241702544 243892600 248703075 248870000 257914300 261313500 263404008 265283280 267687000 268779600 270810015 271215000 271915362 273150000 274379175 276336750 278547444 278840625 279978750 286807500 288864016 292671120 297430000 301350000 302128180 304865750 309497160 311087500 313576200 317234589 318675000 321224400 322392875 324972018 326641875 329255010 331604100 334608750 335974500 339018750 348184305 348418000 358509375 361080020 362553816 365838900 368449000 371396592 371787500 373305000 376291440 377660225 382410000 386871450 387450000 391970250 397924920 401530500 407873043 409725000 414505125 419968125 422979452 433296024 435522500 439006680 442138800 446145000 447966000 451350025 452025000 453192270 457298625 460561250 464245740 466631250 470364300 478012500 487458027 487785200 497406150 501913125 515828600 522627000 526808016 528724315 535374000 541620030 542430000 543830724 544403125 548758350 552673500 557094888 557681250 559957500 573615000 580307175 587955375 604256360 609731500 618994320 622175000 627152400 634469178 637350000 644785750 649944036 653283750 658510020 663208200 669217500 671949000 678037500 679788405 690841875 696368610 699946875 717018750 722160040 725107632 731677800 736898000 740214041 743575000 746610000 755320450 762164375 773742900 783940500 795849840 803061000 812430045 815746086 819450000 823137525 829010250 836521875 839936250 845958904 866592048 871045000 878013360 892290000 902700050 904050000 906384540 914597250 921122500 928491480 933262500 940728600 951703767 956025000 967178625 974916054 979925625 994812300 1003826250 1031657200 1045254000 1057448630 1083240060 1087661448 1088806250 1097516700 1105347000 1114189776 1115362500 1119915000 1132980675 1147230000 1151403125 1160614350 1175910750 1208512720 1219463000 1243515375 1244350000 1268938356 1289571500 1299888072 1306567500 1317020040 1326416400 1338435000 1343898000 1354050075 1356075000 1359576810 1371895875 1381683750 1392737220 1399893750 1434037500 1444320080 1463355600 1480428082 1487150000 1510640900 1524328750 1547485800 1567881000 1586172945 1606122000 1611964375 1624860090 1631492172 1633209375 1646275050 1658020500 1673043750 1679872500 1691917808 1740921525 1742090000 1805400100 1812769080 1829194500 1842245000 1856982960 1866525000 1881457200 1888301125 1903407534 1912050000 1934357250 1949832108 1959851250 1989624600 2007652500 2039365215 2072525625 2099840625 2114897260 2166480120 2175322896 2177612500 2195033400 2210694000 2220642123 2230725000 2239830000 2256750125 2265961350 2286493125 2302806250 2321228700 2351821500 2437290135 2438926000 2487030750 2509565625 2537876712 2579143000 2599776144 2613135000 2634040080 2643621575 2676870000 2708100150 2712150000 2719153620 2743791750 2763367500 2785474440 2799787500 2855111301 2868075000 2901535875 2939776875 2960856164 3021281800 3048657500 3094971600 3135762000 3172345890 3223928750 3249720180 3262984344 3266418750 3292550100 3316041000 3346087500 3359745000 3398942025 3454209375 3481843050 3610800200 3625538160 3658389000 3684490000 3701070205 3733050000 3776602250 3806815068 3810821875 3868714500 3899664216 3919702500 3979249200 4015305000 4062150225 4078730430 4115687625 4145051250 4199681250 4229794520 4332960240 4355225000 4390066800 4441284246 4461450000 4513500250 4531922700 4572986250 4605612500 4642457400 4703643000 4758518835 4835893125 4874580270 4899628125 4974061500 5019131250 5075753424 5158286000 5226270000 5287243150 5416200300 5438307240 5487583500 5526735000 5570948880 5599575000 5664903375 5710222602 5736150000 5803071750 5879553750 5921712328 6042563600 6097315000 6217576875 6344691780 6447857500 6499440360 6525968688 6532837500 6585100200 6632082000 6661926369 6692175000 6719490000 6770250375 6797884050 6859479375 6908418750 6963686100 7221600400 7316778000 7402140410 7553204500 7613630136 7621643750 7737429000 7799328432 7839405000 7930864725 8030610000 8059821875 8124300450 8157460860 8231375250 8290102500 8399362500 8459589040 8704607625 8710450000 8882568492 9027000500 9063845400 9145972500 9211225000 9284914800 9407286000 9441505625 9517037670 9671786250 9749160540 9799256250 9948123000 10038262500 10196826075 10362628125 10574486300 10832400600 10876614480 10975167000 11053470000 11103210615 11199150000 11283750625 11329806750 11420445204 11432465625 11606143500 11759107500 11843424656 12186450675 12194630000 12435153750 12689383560 12895715000 12998880720 13065675000 13170200400 13218107875 13323852738 13384350000 13540500750 13595768100 13718958750 13816837500 13927372200 14275556505 14507679375 14698884375 14804280820 15106409000 15227260272 15243287500 15474858000 15678810000 15861729450 16119643750 16248600900 16314921720 16462750500 16580205000 16798725000 16994710125 17409215250 17765136984 18054001000 18127690800 18291945000 18422450000 18505351025 18883011250 19034075340 19343572500 19498321080 19598512500 19896246000 19985779107 20076525000 20310751125 20393652150 20578438125 20725256250 21148972600 21664801200 21950334000 22206421230 22567501250 22659613500 22840890408 22864931250 23212287000 23518215000 23792594175 24179465625 24372901350 24870307500 25378767120 25791430000 26131350000 26436215750 26647705476 27081001500 27191536200 27437917500 27633675000 27854744400 28324516875 28551113010 29015358750 29397768750 29608561640 30212818000 30486575000 31087884375 31723458900 32239287500 32497201800 32629843440 32925501000 33160410000 33309631845 33597450000 33851251875 33989420250 34297396875 34818430500 35530273968 36108002000 36583890000 37010702050 37766022500 38068150680 38687145000 38996642160 39197025000 39654323625 39971558214 40153050000 40621502250 40787304300 41156876250 41450512500 42297945200 43523038125 44412842460 45135002500 45319227000 45681780816 45729862500 46424574000 47036430000 47207528125 47585188350 48358931250 48745802700 49740615000 50984130375 52872431500 53295410952 54162003000 54383072400 54875835000 55267350000 55516053075 56418753125 56649033750 57102226020 58030717500 58795537500 59217123280 60932253375 60973150000 62175768750 63446917800 64478575000 64994403600 65851002000 66090539375 66619263690 67702503750 67978840500 68594793750 69636861000 71377782525 72538396875 74021404100 75532045000 76136301360 77374290000 78394050000 79308647250 79943116428 81243004500 81574608600 82313752500 82901025000 84973550625 87046076250 88825684920 90270005000 90638454000 91459725000 92526755125 94415056250 95170376700 96717862500 97491605400 99481230000 99928895535 101553755625 101968260750 102892190625 105744863000 106590821904 108324006000 109751670000 111032106150 112837506250 113298067500 114204452040 116061435000 117591075000 118962970875 121864506750 124351537500 126893835600 128957150000 132181078750 133238527380 135405007500 135957681000 137189587500 139273722000 141622584375 142755565050 145076793750 148042808200 151064090000 158617294500 159886232856 162486009000 163149217200 164627505000 165802050000 166548159225 169256259375 169947101250 174092152500 177651369840 180540010000 182919450000 185053510250 188830112500 190340753400 193435725000 194983210800 198271618125 199857791070 203107511250 203936521500 205784381250 211489726000 217615190625 222064212300 225675012500 226596135000 228408904080 232122870000 235182150000 237925941750 243729013500 248703075000 254920651875 264362157500 266477054760 270810015000 271915362000 274379175000 277580265375 283245168750 285511130100 290153587500 296085616400 304661266875 317234589000 319772465712 324972018000 329255010000 330452696875 333096318450 338512518750 339894202500 348184305000 356888912625 370107020500 377660225000 380681506800 386871450000 396543236250 399715582140 406215022500 407873043000 411568762500 424867753125 435230381250 444128424600 451350025000 453192270000 462633775625 475851883500 487458027000 497406150000 499644477675 507768778125 509841303750 528724315000 532954109520 541620030000 548758350000 555160530750 566490337500 571022260200 580307175000 594814854375 609322533750 634469178000 660905393750 666192636900 677025037500 679788405000 696368610000 713777825250 740214041000 755320450000 793086472500 799431164280 812430045000 815746086000 823137525000 832740796125 849735506250 870460762500 888256849200 902700050000 925267551250 951703767000 974916054000 991358090625 999288955350 1015537556250 1019682607500 1057448630000 1110321061500 1132980675000 1142044520400 1160614350000 1189629708750 1218645067500 1274603259375 1321810787500 1332385273800 1354050075000 1359576810000 1387901326875 1427555650500 1480428082000 1523306334375 1586172945000 1598862328560 1624860090000 1646275050000 1665481592250 1699471012500 1740921525000 1784444563125 1850535102500 1903407534000 1982716181250 1998577910700 2031075112500 2039365215000 2220642123000 2265961350000 2313168878125 2379259417500 2437290135000 2498222388375 2549206518750 2643621575000 2664770547600 2708100150000 2775802653750 2855111301000 2974074271875 3046612668750 3172345890000 3330963184500 3398942025000 3481843050000 3568889126250 3701070205000 3965432362500 3997155821400 4062150225000 4078730430000 4163703980625 4441284246000 4626337756250 4758518835000 4874580270000 4996444776750 5098413037500 5287243150000 5551605307500 5710222602000 5948148543750 6093225337500 6661926369000 6797884050000 6939506634375 7137778252500 7402140410000 7930864725000 7994311642800 8124300450000 8327407961250 8922222815625 9252675512500 9517037670000 9992889553500 10196826075000 11103210615000 11896297087500 12186450675000 12491111941875 13323852738000 13879013268750 14275556505000 15861729450000 16654815922500 17844445631250 18505351025000 19985779107000 20393652150000 20818519903125 22206421230000 23792594175000 24372901350000 24982223883750 27758026537500 28551113010000 33309631845000 35688891262500 37010702050000 39971558214000 41637039806250 47585188350000 49964447767500 55516053075000 62455559709375 66619263690000 71377782525000 83274079612500 99928895535000 111032106150000 124911119418750 142755565050000 166548159225000 199857791070000 249822238837500 333096318450000 499644477675000 999288955350000
- Sum of all divisors σ(n): 4279288013975520
- Sum of proper divisors (its aliquot sum) s(n): 3279999058625520
- 999288955350000 is an abundant number, because the sum of its proper divisors (3279999058625520) is greater than itself. Its abundance is 2280710103275520
Bases of 999288955350000
- Binary: 111000110011011001000101110011011000101011111100002
- Hexadecimal: 0x38CD917362BF0
- Base-36: 9U7V0B50C0
Squares and roots of 999288955350000
- 999288955350000 squared (9992889553500002) is 998578416284494293622500000000
- 999288955350000 cubed (9992889553500003) is 997868382443989731077064192255375000000000000
-
The
square root of 999288955350000 is 31611531.9994143909 -
The
cube root of 999288955350000 is 99976.2928918409
Scales and comparisons
How big is 999288955350000?- 999,288,955,350,000 seconds is equal to 31,774,297 years, 40 weeks, 2 days, 15 hours.
-
To count from 1 to 999,288,955,350,000 would take you about seventy-nine million, four hundred thirty-five thousand, seven hundred forty-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 999288955350000 cubic inches would be around 8331.4 feet tall.
Recreational maths with 999288955350000
- 999288955350000 backwards is 000053559882999
- 999288955350000 is a
Harshad number . - The number of decimal digits it has is: 15
- The sum of 999288955350000's digits is 72
- More coming soon!
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 999288955350000 - Facts about the integer". Numbermatics.com. 2024. Web. 18 June 2024.
APA style:
Numbermatics. (2024). Number 999288955350000 - Facts about the integer. Retrieved 18 June 2024, from https://numbermatics.com/n/999288955350000/
Chicago style:
Numbermatics. 2024. "Number 999288955350000 - Facts about the integer". https://numbermatics.com/n/999288955350000/
The information we have on file for 999288955350000 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 999288955350000, math, Factors of 999288955350000, curriculum, school, college, exams, university, Prime factorization of 999288955350000, STEM, science, technology, engineering, physics, economics, calculator, nine hundred ninety-nine trillion, two hundred eighty-eight billion, nine hundred fifty-five million, three hundred fifty thousand.