30087349963976000
30,087,349,963,976,000 is an even composite number composed of seven prime numbers multiplied together.
What does the number 30087349963976000 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 2016 divisors.
30087349963976000 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two thousand and sixteen divisors.
Prime factorization of 30087349963976000:
26 × 53 × 172 × 29 × 37 × 972 × 1289
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 17 × 17 × 29 × 37 × 97 × 97 × 1289)See below for interesting mathematical facts about the number 30087349963976000 from the Numbermatics database.
Names of 30087349963976000
- Cardinal: 30087349963976000 can be written as Thirty quadrillion, eighty-seven trillion, three hundred forty-nine billion, nine hundred sixty-three million, nine hundred seventy-six thousand.
Scientific notation
- Scientific notation: 3.0087349963976 × 1016
Factors of 30087349963976000
Divisors of 30087349963976000
- Number of divisors d(n): 2016
-
Complete list of divisors:
1 2 4 5 8 10 16 17 20 25 29 32 34 37 40 50 58 64 68 74 80 85 97 100 116 125 136 145 148 160 170 185 194 200 232 250 272 289 290 296 320 340 370 388 400 425 464 485 493 500 544 578 580 592 629 680 725 740 776 800 850 925 928 970 986 1000 1073 1088 1156 1160 1184 1258 1289 1360 1445 1450 1480 1552 1600 1649 1700 1850 1856 1940 1972 2000 2125 2146 2312 2320 2368 2425 2465 2516 2578 2720 2813 2890 2900 2960 3104 3145 3298 3400 3589 3625 3700 3880 3944 4000 4250 4292 4624 4625 4640 4850 4930 5032 5156 5365 5440 5626 5780 5800 5920 6208 6290 6445 6596 6800 7178 7225 7250 7400 7760 7888 8000 8245 8381 8500 8584 9248 9250 9280 9409 9700 9860 10064 10312 10693 10730 11252 11560 11600 11840 12125 12325 12580 12890 13192 13600 14065 14356 14450 14500 14800 15520 15725 15776 16490 16762 17000 17168 17945 18241 18496 18500 18818 19400 19720 20128 20624 21386 21460 21913 22504 23120 23200 24250 24650 25160 25780 26384 26825 27200 28033 28130 28712 28900 29000 29600 31040 31450 31552 32225 32980 33524 34000 34336 35890 36125 36482 37000 37381 37636 38800 39440 40256 41225 41248 41905 42772 42920 43826 45008 46240 46400 47045 47693 47821 48500 49300 50320 51560 52768 53465 53650 56066 56260 57424 57800 58000 59200 61013 61625 62900 64450 65960 67048 68000 68672 70325 71780 72250 72964 74000 74762 75272 77600 78625 78880 82450 82496 83810 85544 85840 87652 89725 90016 91205 92480 94090 95386 95642 97000 98600 100640 103120 104081 105536 106930 107300 109565 112132 112520 114848 115600 116000 122026 123250 125033 125800 128900 131920 134096 134125 136000 140165 140650 143560 144500 145928 148000 149524 150544 155200 157250 157760 159953 161125 164900 167620 171088 171680 175304 179450 180032 182410 186905 188180 190772 191284 194000 197200 201280 206125 206240 208162 209525 213860 214600 219130 224264 225040 229696 231200 232000 235225 238465 239105 244052 246500 250066 251600 257800 263840 267325 268192 268250 272861 280330 281300 287120 289000 291856 296000 299048 301088 305065 310097 314500 319906 322250 329800 335240 342176 343360 348133 350608 351625 358900 364820 372521 373810 376360 381544 382568 388000 394400 412250 412480 416324 419050 427720 429200 438260 448528 448625 450080 456025 462400 470450 476930 478210 488104 493000 500132 503200 515600 520405 527680 534650 536384 536500 545722 547825 560660 562600 574240 578000 583712 598096 602176 610130 620194 625165 629000 635477 639812 644500 659600 670480 684352 696266 700825 701216 703250 717800 729640 745042 747620 752720 763088 765136 776000 788800 799765 810781 812957 824500 832648 838100 855440 858400 876520 897056 897250 900160 912050 934525 940900 953860 956420 976208 986000 1000264 1006400 1031200 1037221 1040810 1047625 1069300 1073000 1091444 1095650 1121320 1125200 1148480 1156000 1167424 1176125 1192325 1195525 1196192 1220260 1240388 1250330 1258000 1270954 1279624 1289000 1319200 1336625 1340960 1364305 1383097 1392532 1401650 1402432 1406500 1435600 1459280 1490084 1495240 1505440 1525325 1526176 1530272 1550485 1599530 1621562 1625914 1649000 1665296 1676200 1710880 1716800 1740665 1753040 1769377 1794112 1794500 1824100 1862605 1869050 1881800 1907720 1912840 1952416 1972000 2000528 2062400 2074442 2081620 2095250 2125561 2138600 2146000 2182888 2191300 2242640 2250400 2280125 2312000 2352250 2384650 2391050 2392384 2440520 2480776 2500660 2516000 2541908 2559248 2578000 2602025 2638400 2673250 2681920 2719201 2728610 2739125 2766194 2785064 2803300 2813000 2871200 2918560 2980168 2990480 3010880 3050650 3052352 3060544 3100970 3125825 3177385 3199060 3243124 3251828 3298000 3330592 3352400 3421760 3481330 3504125 3506080 3538754 3589000 3625957 3648200 3725210 3738100 3763600 3815440 3825680 3904832 3944000 3998825 4001056 4053905 4064785 4148884 4163240 4190500 4251122 4277200 4292000 4365776 4382600 4485280 4500800 4560250 4626221 4638637 4672625 4704500 4769300 4782100 4881040 4961552 5001320 5032000 5083816 5118496 5156000 5186105 5204050 5346500 5438402 5457220 5478250 5532388 5570128 5606600 5626000 5742400 5837120 5918261 5960336 5961625 5977625 5980960 6101300 6201940 6251650 6354770 6398120 6486248 6503656 6596000 6661184 6704800 6821525 6915485 6962660 7008250 7012160 7077508 7178000 7251914 7296400 7450420 7476200 7527200 7626625 7630880 7651360 7752425 7997650 8002112 8107810 8129570 8297768 8326480 8381000 8502244 8554400 8584000 8703325 8731552 8765200 8846885 8970560 9120500 9252442 9277274 9313025 9345250 9409000 9538600 9564200 9762080 9923104 10002640 10095857 10167632 10236992 10312000 10372210 10408100 10627805 10693000 10803109 10876804 10914440 10956500 11064776 11140256 11213200 11252000 11836522 11920672 11923250 11955250 11961920 12128201 12202600 12403880 12503300 12709540 12796240 12972496 13007312 13010125 13192000 13409600 13596005 13643050 13783277 13830970 13925320 14016500 14155016 14356000 14503828 14592800 14900840 14952400 15054400 15253250 15261760 15302720 15504850 15629125 15886925 15995300 16215620 16259140 16595536 16652960 16762000 17004488 17108800 17406650 17463104 17530400 17693770 18129785 18241000 18504884 18554548 18626050 18690500 18818000 19077200 19128400 19524160 19846208 19994125 20005280 20191714 20269525 20323925 20335264 20744420 20816200 21255610 21386000 21606218 21753608 21828880 21913000 22129552 22280512 22426400 22504000 23131105 23193185 23512649 23673044 23841344 23846500 23910500 24256402 24405200 24807760 25006600 25419080 25592480 25930525 25944992 26014624 26020250 27192010 27286100 27566554 27661940 27850640 28033000 28310032 28712000 29007656 29185600 29591305 29801680 29904800 30079409 30506500 31009700 31258250 31773850 31990600 32431240 32518280 33191072 33305920 33524000 34008976 34107625 34577425 34813300 35060800 35387540 36134537 36259570 36482000 37009768 37109096 37252100 37381000 37636000 38154400 38256800 38762125 39988250 40010560 40383428 40539050 40647850 40670528 41488840 41632400 42511220 42772000 43212436 43507216 43516625 43657760 43826000 44234425 44259104 44852800 46262210 46386370 46565125 47025298 47346088 47693000 47821000 48512804 48810400 49615520 50013200 50479285 50838160 51184960 51861050 51889984 52029248 52040500 53139025 54015545 54384020 54572200 55133108 55323880 55701280 56066000 56620064 58015312 59182610 59603360 59809600 60158818 60641005 61013000 61641269 62019400 62516500 63547700 63981200 64862480 65036560 66382144 67048000 67980025 68017952 68215250 68916385 69154850 69626600 70775080 72269074 72519140 72964000 74019536 74218192 74504200 74762000 75272000 76308800 76513600 77524250 78645757 78856829 79434625 79976500 80766856 81078100 81295700 82977680 83264800 85022440 85544000 86424872 87014432 87033250 87315520 87652000 88468850 88518208 90648925 92524420 92772740 93130250 94050596 94692176 95386000 95642000 97025608 97620800 99231040 100026400 100610437 100958570 101347625 101619625 101676320 103722100 104081000 106278050 108031090 108768040 109144400 110266216 110647760 111402560 112132000 113240128 115655525 115965925 116030624 117563245 118365220 119206720 120317636 121282010 122026000 123282538 124038800 125033000 127095400 127962400 129652625 129724960 130073120 134160409 135960050 136035904 136430500 137832770 138309700 139253200 141550160 144538148 145038280 145928000 147956525 148039072 148436384 149008400 149524000 150397045 155048500 157291514 157713658 158869250 159953000 161533712 162156200 162591400 165955360 166529600 170044880 171629569 172849744 172887125 174028864 174066500 175304000 176937700 180672685 181297850 185048840 185545480 186260500 188101192 189384352 190772000 191284000 194051216 200052800 201220874 201917140 202695250 203239250 203352640 206179417 207444200 208162000 212556100 216062180 217536080 218288800 220532432 221172125 221295520 224264000 231311050 231931850 232061248 235126490 236730440 240635272 242564020 244052000 246565076 248077600 250066000 252396425 254190800 255924800 259305250 259449920 260146240 265695125 268320818 270077725 271920100 272861000 275665540 276619400 278506400 283100320 289076296 290076560 295913050 296078144 296872768 298016800 299048000 300794090 303205025 308206345 310097000 314583028 315427316 317738500 319906000 323067424 324312400 325182800 331910720 339900125 340089760 343259138 344581925 345699488 345774250 348133000 351717829 353875400 361345370 362595700 370097680 371090960 372521000 376202384 378768704 381544000 382568000 388102432 393228785 394284145 399715033 402441748 403834280 405390500 406478500 412358834 414888400 416324000 425112200 432124360 435072160 436577600 441064864 442344250 442591040 448743437 453244625 462622100 463863700 470252980 473460880 481270544 485128040 488104000 493130152 496155200 500132000 503052185 504792850 508381600 518610500 531390250 536641636 540155450 543840200 545722000 551331080 553238800 557012800 566200640 578152592 578277625 579829625 580153120 587816225 591826100 596033600 601588180 606410050 616412690 620194000 629166056 630854632 635477000 639812000 646134848 648624800 650365600 670802045 679800250 680179520 686518276 689163850 691398976 691548500 696266000 703435658 707750800 722690740 725191400 739782625 740195360 742181920 745042000 751985225 752404768 776204864 786457570 788568290 799430066 804883496 807668560 810781000 812957000 824717668 829776800 832648000 850224400 858147845 864248720 870144320 882129728 884688500 897486874 903363425 906489250 925244200 927727400 940505960 946921760 962541088 970256080 986260304 1000264000 1006104370 1009585700 1016763200 1030897085 1037221000 1047901573 1062780500 1073283272 1080310900 1087680400 1091444000 1102662160 1106477600 1156305184 1156555250 1159659250 1160306240 1175632450 1183652200 1203176360 1212820100 1232825380 1240388000 1258332112 1261709264 1261982125 1270954000 1279624000 1297249600 1300731200 1336977869 1341604090 1350388625 1359600500 1373036552 1378327700 1383097000 1392532000 1406871316 1415501600 1445381480 1450382800 1479565250 1480390720 1484363840 1490084000 1503970450 1504809536 1516025125 1541031725 1572915140 1577136580 1598860132 1609766992 1615337120 1621562000 1625914000 1649435336 1659553600 1700448800 1716295690 1722909625 1728497440 1758589145 1769377000 1794973748 1806726850 1812978500 1850488400 1855454800 1881011920 1893843520 1925082176 1940512160 1966143925 1971420725 1972520608 1998575165 2012208740 2019171400 2061794170 2074442000 2095803146 2125561000 2146566544 2160621800 2175360800 2182888000 2205324320 2212955200 2243717185 2280726953 2312610368 2313110500 2319318500 2351264900 2367304400 2406352720 2425640200 2465650760 2480776000 2515260925 2516664224 2523418528 2523964250 2541908000 2673955738 2683208180 2700777250 2719201000 2746073104 2756655400 2766194000 2785064000 2813742632 2831003200 2890762960 2900765600 2917702673 2939081125 2959130500 2980168000 3007940900 3032050250 3082063450 3145830280 3154273160 3197720264 3219533984 3230674240 3243124000 3251828000 3298870672 3354010225 3400897600 3432591380 3445819250 3456994880 3505050089 3517178290 3538754000 3589947496 3613453700 3625957000 3700976800 3710909600 3759926125 3762023840 3881024320 3932287850 3942841450 3945041216 3997150330 4024417480 4038342800 4123588340 4148884000 4191606292 4251122000 4290739225 4293133088 4321243600 4350721600 4410648640 4487434370 4516817125 4561453906 4626221000 4638637000 4702529800 4734608800 4812705440 4851280400 4931301520 5030521850 5033328448 5046837056 5047928500 5083816000 5154485425 5239507865 5347911476 5366416360 5401554500 5438402000 5492146208 5513310800 5532388000 5627485264 5781525920 5801531200 5835405346 5878162250 5918261000 5979203093 6015881800 6064100500 6164126900 6291660560 6308546320 6395440528 6439067968 6486248000 6503656000 6597741344 6684889345 6708020450 6865182760 6891638500 7010100178 7034356580 7077508000 7179894992 7226907400 7251914000 7401953600 7421819200 7519852250 7524047680 7628638429 7705158625 7864575700 7885682900 7994300660 8048834960 8076685600 8247176680 8297768000 8383212584 8502244000 8581478450 8586266176 8642487200 8792945725 8974868740 9033634250 9122907812 9252442000 9277274000 9405059600 9469217600 9625410880 9702560800 9830719625 9857103625 9862603040 9992875825 10061043700 10095857000 10308970850 10479015730 10695822952 10732832720 10803109000 10876804000 10984292416 11026621600 11064776000 11218585925 11254970528 11403634765 11563051840 11670810692 11756324500 11836522000 11958406186 12031763600 12128201000 12328253800 12576304625 12583321120 12617092640 12790881056 13013559673 13195482688 13369778690 13416040900 13730365520 13783277000 14020200356 14068713160 14155016000 14359789984 14453814800 14503828000 14588513365 15039704500 15257276858 15410317250 15729151400 15771365800 15988601320 16097669920 16153371200 16494353360 16766425168 16770051125 17004488000 17162956900 17284974400 17525250445 17585891450 17949737480 18067268500 18245815624 18504884000 18554548000 18810119200 19405121600 19661439250 19714207250 19725206080 19985751650 20122087400 20191714000 20617941700 20958031460 21391645904 21453696125 21465665440 21606218000 21753608000 22053243200 22437171850 22509941056 22807269530 23341621384 23512649000 23673044000 23916812372 24063527200 24256402000 24656507600 25152609250 25166642240 25234185280 25581762112 25772427125 26027119346 26197539325 26739557380 26832081800 27460731040 27566554000 28040400712 28137426320 28719579968 28907629600 29007656000 29177026730 29896015465 30079409000 30514553716 30820634500 31458302800 31542731600 31977202640 32195339840 32988706720 33424446725 33532850336 33540102250 34325913800 35050500890 35171782900 35899474960 36134537000 36491631248 37009768000 37109096000 37620238400 38143192145 38772358201 39322878500 39428414500 39971503300 40244174800 40383428000 41235883400 41916062920 42783291808 42907392250 42931330880 43212436000 43964728625 44874343700 45614539060 46683242768 47025298000 47346088000 47833624744 48127054400 48512804000 49313015200 49964379125 50305218500 51544854250 52054238692 52395078650 53479114760 53664163600 54921462080 55133108000 56080801424 56092929625 56274852640 57018173825 57815259200 58354053460 59792030930 60158818000 61029107432 61641269000 62916605600 63085463200 63954405280 65067798365 65977413440 66848893450 67065700672 67080204500 68651827600 70101001780 70343565800 71798949920 72269074000 72942566825 72983262496 76286384290 77544716402 78645757000 78856829000 79943006600 80488349600 80766856000 82471766800 83832125840 85566583616 85814784500 86424872000 87626252225 87929457250 89748687400 91229078120 93366485536 94050596000 95667249488 97025608000 98626030400 99928758250 100610437000 101646452581 103089708500 104108477384 104790157300 106958229520 107328327200 110266216000 112161602848 112185859250 112549705280 114036347650 116708106920 119584061860 120317636000 122058214864 123282538000 125833211200 126170926400 127908810560 129686853293 130135596730 130987696625 133697786900 134160409000 137303655200 140202003560 140687131600 143597899840 144538148000 145885133650 145966524992 149480077325 152572768580 155089432804 157291514000 157713658000 159886013200 160976699200 164943533600 167122233625 167664251680 171629569000 175252504450 175858914500 179497374800 182458156240 186732971072 188101192000 190715960725 191334498976 193861791005 199857516500 201220874000 203292905162 206179417000 208216954768 209580314600 213916459040 214656654400 221230514441 224323205696 224371718500 228072695300 233416213840 239168123720 240635272000 244116429728 246565076000 259373706586 260271193460 261975393250 267395573800 268320818000 274607310400 280404007120 281374263200 285090869125 289076296000 291770267300 298960154650 305145537160 310178865608 314583028000 315427316000 319772026400 325338991825 329887067200 334244467250 335328503360 343259138000 350505008900 351717829000 358994749600 364712834125 364916312480 381431921450 382668997952 387723582010 399715033000 402441748000 406585810324 412358834000 416433909536 419160629200 427832918080 438131261125 442461028882 448743437000 456145390600 466832427680 478336247440 488232859456 493130152000 508232262905 518747413172 520542386920 523950786500 534791147600 536641636000 560808014240 562748526400 570181738250 583540534600 597920309300 610291074320 620357731216 629166056000 630854632000 639544052800 648434266465 650677983650 668488934500 686518276000 701010017800 703435658000 717989499200 729425668250 729832624960 747400386625 762863842900 775447164020 799430066000 804883496000 813171620648 824717668000 832867819072 838321258400 876262522250 884922057764 897486874000 912290781200 933664855360 953579803625 956672494880 969308955025 1016464525810 1037494826344 1041084773840 1047901573000 1069582295200 1073283272000 1106152572205 1121616028480 1140363476500 1167081069200 1195840618600 1220582148640 1240715462432 1296868532930 1301355967300 1336977869000 1373036552000 1402020035600 1406871316000 1458851336500 1494800773250 1525727685800 1550894328040 1598860132000 1626343241296 1626694959125 1649435336000 1676642516800 1752525044500 1769844115528 1794973748000 1824581562400 1907159607250 1913344989760 1938617910050 2032929051620 2074989652688 2082169547680 2095803146000 2139164590400 2212305144410 2280726953000 2334162138400 2391681237200 2441164297280 2481430924864 2541161314525 2593737065860 2602711934600 2673955738000 2804040071200 2813742632000 2917702673000 2989601546500 3051455371600 3101788656080 3197720264000 3242171332325 3252686482592 3253389918250 3505050089000 3539688231056 3589947496000 3649163124800 3760918745497 3814319214500 3877235820100 4065858103240 4149979305376 4164339095360 4191606292000 4424610288820 4561453906000 4668324276800 4783362474400 4846544775125 5082322629050 5187474131720 5205423869200 5347911476000 5530762861025 5608080142400 5835405346000 5979203093000 6102910743200 6203577312160 6484342664650 6505372965184 6506779836500 7010100178000 7079376462112 7521837490994 7628638429000 7754471640200 8131716206480 8299958610752 8383212584000 8849220577640 9122907812000 9566724948800 9693089550250 10164645258100 10374948263440 10410847738400 10695822952000 11061525722050 11670810692000 11958406186000 12205821486400 12407154624320 12705806572625 12968685329300 13013559673000 14020200356000 14158752924224 15043674981988 15257276858000 15508943280400 16210856661625 16263432412960 17698441155280 18245815624000 18804593727485 19386179100500 20329290516200 20749896526880 20821695476800 22123051444100 23341621384000 23916812372000 25411613145250 25937370658600 26027119346000 27653814305125 28040400712000 30087349963976 30514553716000 31017886560800 32421713323250 32526864825920 35396882310560 37609187454970 38772358201000 40658581032400 41499793053760 44246102888200 47833624744000 50823226290500 51874741317200 52054238692000 55307628610250 60174699927952 61029107432000 62035773121600 64843426646500 70793764621120 75218374909940 77544716402000 81317162064800 88492205776400 94022968637425 101646452581000 103749482634400 104108477384000 110615257220500 120349399855904 129686853293000 150436749819880 155089432804000 162634324129600 176984411552800 188045937274850 203292905162000 207498965268800 221230514441000 240698799711808 259373706586000 300873499639760 310178865608000 353968823105600 376091874549700 406585810324000 442461028882000 470114843187125 518747413172000 601746999279520 752183749099400 813171620648000 884922057764000 940229686374250 1037494826344000 1203493998559040 1504367498198800 1769844115528000 1880459372748500 3008734996397600 3760918745497000 6017469992795200 7521837490994000 15043674981988000 30087349963976000
- Sum of all divisors σ(n): 85036377326752800
- Sum of proper divisors (its aliquot sum) s(n): 54949027362776800
- 30087349963976000 is an abundant number, because the sum of its proper divisors (54949027362776800) is greater than itself. Its abundance is 24861677398800800
Bases of 30087349963976000
- Binary: 11010101110010001001001000011101101010111101101010000002
- Hexadecimal: 0x6AE4490ED5ED40
- Base-36: 8892PRC71VK
Squares and roots of 30087349963976000
- 30087349963976000 squared (300873499639760002) is 905248627854766608497728576000000
- 30087349963976000 cubed (300873499639760003) is 27236532270675435548344021566591425778176000000000
-
The
square root of 30087349963976000 is 173457055.1000333339 -
The
cube root of 30087349963976000 is 311024.5324264105
Scales and comparisons
How big is 30087349963976000?- 30,087,349,963,976,000 seconds is equal to 956,684,662 years, 29 weeks, 4 days, 15 hours, 33 minutes, 20 seconds.
-
To count from 1 to 30,087,349,963,976,000 would take you about two billion, eight hundred seventy million, fifty-three thousand, nine hundred eighty-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 30087349963976000 cubic inches would be around 25918.7 feet tall.
Recreational maths with 30087349963976000
- 30087349963976000 backwards is 00067936994378003
- 30087349963976000 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 30087349963976000's digits is 74
- 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 30087349963976000 - Facts about the integer". Numbermatics.com. 2024. Web. 9 June 2024.
APA style:
Numbermatics. (2024). Number 30087349963976000 - Facts about the integer. Retrieved 9 June 2024, from https://numbermatics.com/n/30087349963976000/
Chicago style:
Numbermatics. 2024. "Number 30087349963976000 - Facts about the integer". https://numbermatics.com/n/30087349963976000/
The information we have on file for 30087349963976000 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 30087349963976000, math, Factors of 30087349963976000, curriculum, school, college, exams, university, Prime factorization of 30087349963976000, STEM, science, technology, engineering, physics, economics, calculator, thirty quadrillion, eighty-seven trillion, three hundred forty-nine billion, nine hundred sixty-three million, nine hundred seventy-six thousand.