16991198811312000
16,991,198,811,312,000 is an even composite number composed of six prime numbers multiplied together.
16991198811312000 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two thousand and forty-eight divisors.
Prime factorization of 16991198811312000:
27 × 3 × 53 × 113 × 19 × 2413
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 11 × 11 × 11 × 19 × 241 × 241 × 241)See below for interesting mathematical facts about the number 16991198811312000 from the Numbermatics database.
Names of 16991198811312000
- Cardinal: 16991198811312000 can be written as Sixteen quadrillion, nine hundred ninety-one trillion, one hundred ninety-eight billion, eight hundred eleven million, three hundred twelve thousand.
Scientific notation
- Scientific notation: 1.6991198811312 × 1016
Factors of 16991198811312000
Divisors of 16991198811312000
- Number of divisors d(n): 2048
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 19 20 22 24 25 30 32 33 38 40 44 48 50 55 57 60 64 66 75 76 80 88 95 96 100 110 114 120 121 125 128 132 150 152 160 165 176 190 192 200 209 220 228 240 241 242 250 264 275 285 300 304 320 330 352 363 375 380 384 400 418 440 456 475 480 482 484 500 528 550 570 600 605 608 627 640 660 704 723 726 750 760 800 825 836 880 912 950 960 964 968 1000 1045 1056 1100 1140 1200 1205 1210 1216 1254 1320 1331 1375 1408 1425 1446 1452 1500 1520 1600 1650 1672 1760 1815 1824 1900 1920 1928 1936 2000 2090 2112 2200 2280 2299 2375 2400 2410 2420 2432 2508 2640 2651 2662 2750 2850 2892 2904 3000 3025 3040 3135 3200 3300 3344 3520 3615 3630 3648 3800 3856 3872 3993 4000 4125 4180 4224 4400 4560 4579 4598 4750 4800 4820 4840 5016 5225 5280 5302 5324 5500 5700 5784 5808 6000 6025 6050 6080 6270 6600 6655 6688 6897 7040 7125 7230 7260 7296 7600 7712 7744 7953 7986 8000 8250 8360 8800 9075 9120 9158 9196 9500 9600 9640 9680 10032 10450 10560 10604 10648 11000 11400 11495 11568 11616 12000 12050 12100 12160 12540 13200 13255 13310 13376 13737 13794 14250 14460 14520 15125 15200 15424 15488 15675 15906 15972 16000 16500 16720 17600 18075 18150 18240 18316 18392 19000 19280 19360 19965 20064 20900 21120 21208 21296 22000 22800 22895 22990 23136 23232 24000 24100 24200 25080 25289 26125 26400 26510 26620 26752 27474 27588 28500 28920 29040 29161 30125 30250 30400 30848 31350 31812 31944 33000 33275 33440 34485 35200 36150 36300 36480 36632 36784 38000 38560 38720 39765 39930 40128 41800 42416 42592 44000 45375 45600 45790 45980 46272 46464 48000 48200 48400 50160 50369 50578 52250 52800 53020 53240 54948 55176 57000 57475 57840 58080 58081 58322 60250 60500 60800 62700 63624 63888 66000 66275 66550 66880 68685 68970 72300 72600 73264 73568 75867 76000 77120 77440 78375 79530 79860 80256 83600 84832 85184 87483 88000 90375 90750 91200 91580 91960 92544 96400 96800 99825 100320 100738 101156 104500 105600 106040 106480 109896 110352 114000 114475 114950 115680 116160 116162 116644 120500 121000 125400 126445 127248 127776 132000 132550 133100 133760 137370 137940 144600 145200 145805 146528 147136 151107 151734 152000 154240 156750 159060 159720 166375 167200 169664 170368 172425 174243 174966 176000 180750 181500 182400 183160 183920 192800 193600 198825 199650 200640 201476 202312 209000 212080 212960 219792 220704 228000 228950 229900 231360 232320 232324 233288 241000 242000 250800 251845 252890 254496 255552 264000 265100 266200 274740 275880 287375 289200 290400 290405 291610 293056 294272 302214 303468 304000 313500 318120 319440 320771 331375 332750 334400 339328 343425 344850 348486 349932 361500 363000 366320 367840 379335 385600 387200 397650 399300 401280 402952 404624 418000 424160 425920 437415 439584 441408 456000 457900 459800 462720 464648 466576 482000 484000 499125 501600 503690 505780 508992 511104 528000 530200 532400 549480 551760 554059 572375 574750 578400 580800 580810 583220 586112 604428 606936 627000 632225 636240 638880 638891 641542 662750 665500 668800 686850 689700 696972 699864 723000 726000 729025 732640 735680 755535 758670 771200 795300 798600 805904 809248 836000 848320 851840 862125 871215 874830 879168 882816 912000 915800 919600 929296 933152 962313 964000 968000 994125 998250 1003200 1007380 1011560 1017984 1060400 1064800 1098960 1103520 1103539 1108118 1144750 1149500 1156800 1161600 1161620 1166440 1208856 1213872 1254000 1259225 1264450 1272480 1277760 1277782 1283084 1325500 1331000 1373700 1379400 1393944 1399728 1446000 1452000 1452025 1458050 1465280 1471360 1511070 1517340 1590600 1597200 1603855 1611808 1618496 1662177 1672000 1696640 1717125 1724250 1742430 1749660 1758336 1831600 1839200 1858592 1866304 1896675 1916673 1924626 1928000 1936000 1988250 1996500 2006400 2014760 2023120 2120800 2129600 2187075 2197920 2207040 2207078 2216236 2289500 2299000 2313600 2323240 2332880 2417712 2427744 2508000 2518450 2528900 2544960 2555520 2555564 2566168 2651000 2662000 2747400 2758800 2770295 2787888 2799456 2892000 2904000 2904050 2916100 2930560 3022140 3034680 3161125 3181200 3194400 3194455 3207710 3223616 3236992 3310617 3324354 3344000 3434250 3448500 3484860 3499320 3645125 3663200 3678400 3717184 3732608 3777675 3793350 3833346 3849252 3856000 3976500 3993000 4029520 4046240 4241600 4259200 4356075 4374150 4395840 4414080 4414156 4432472 4579000 4598000 4646480 4665760 4811565 4835424 4855488 5016000 5036900 5057800 5089920 5111128 5132336 5302000 5324000 5494800 5517600 5517695 5540590 5575776 5598912 5784000 5808000 5808100 5832200 6044280 6069360 6094649 6296125 6322250 6362400 6388800 6388910 6415420 6447232 6621234 6648708 6868500 6897000 6969720 6998640 7027801 7260125 7290250 7326400 7356800 7434368 7555350 7586700 7666692 7698504 7953000 7986000 8019275 8059040 8092480 8310885 8483200 8712150 8748300 8791680 8828312 8864944 9158000 9196000 9292960 9331520 9483375 9583365 9623130 9670848 9710976 10032000 10073800 10115600 10222256 10264672 10604000 10648000 10935375 10989600 11035200 11035390 11081180 11151552 11197824 11568000 11616200 11664400 12088560 12138720 12138929 12189298 12592250 12644500 12724800 12777600 12777820 12830840 13242468 13297416 13737000 13794000 13851475 13939440 13997280 13997521 14055602 14520250 14580500 14652800 15110700 15173400 15333384 15397008 15906000 15972000 15972275 16038550 16118080 16184960 16553085 16621770 17424300 17496600 17656624 17729888 18283947 18316000 18392000 18585920 18663040 18888375 18966750 19166730 19246260 19341696 20147600 20231200 20444512 20529344 21083403 21208000 21296000 21780375 21870750 21979200 22070400 22070780 22162360 22303104 23232400 23328800 24057825 24177120 24277440 24277858 24378596 25184500 25289000 25449600 25555640 25661680 26484936 26594832 27474000 27588000 27588475 27702950 27878880 27994560 27995042 28111204 29040500 29161000 30221400 30346800 30473245 30666768 30794016 31812000 31944000 31944550 32077100 32236160 33106170 33243540 34848600 34993200 35139005 35313248 35459776 36416787 36567894 36632000 36784000 37171840 37776750 37933500 38333460 38492520 40096375 40295200 40462400 40889024 41058688 41554425 41992563 42166806 42416000 43560750 43741500 43958400 44141560 44324720 46464800 46657600 47916825 48115650 48354240 48554880 48555716 48757192 50369000 50578000 51111280 51323360 52969872 53189664 54948000 55176000 55176950 55405900 55757760 55989120 55990084 56222408 58081000 58322000 60442800 60693600 60694645 60946490 61333536 61588032 63624000 63888000 63889100 64154200 66212340 66487080 69257375 69697200 69986400 69987605 70278010 70626496 70919552 72833574 73135788 73264000 75553500 75867000 76666920 76985040 77305811 79861375 80192750 80590400 80924800 81778048 82765425 83108850 83985126 84333612 87121500 87483000 88283120 88649440 91419735 92929600 93315200 95833650 96231300 96708480 97111432 97514384 100738000 101156000 102222560 102646720 105417015 105939744 106379328 109896000 110352000 110353900 110811800 111515520 111980168 112444816 116162000 116644000 120289125 120885600 121387200 121389290 121892980 122667072 123176064 127248000 127778200 128308400 132424680 132974160 133528219 137942375 138514750 139394400 139972800 139975210 140556020 141252992 145667148 146271576 151107000 151734000 152366225 153333840 153970080 153972731 154611622 159722750 160385500 161180800 165530850 166217700 167970252 168667224 174243000 174966000 175695025 176566240 177298880 182083935 182839470 185859200 191667300 192462600 194222864 195028768 201476000 202312000 204445120 205293440 207772125 209962815 210834030 211879488 212758656 219792000 220707800 221623600 223960336 224889632 231917433 232324000 233288000 239584125 240578250 241771200 242774400 242778580 243785960 245334144 255556400 256616800 264849360 265948320 265952899 267056438 275884750 277029500 278788800 279945600 279950420 281112040 291334296 292543152 302214000 303468000 303473225 304732450 306667680 307940160 307945462 309223244 319445500 320771000 331061700 332435400 335940504 337334448 348486000 349932000 349938025 351390050 353132480 354597760 364167870 365678940 383334600 384925200 386529055 388445728 390057536 400584657 402952000 404624000 408890240 413827125 415544250 419925630 421668060 423758976 441415600 443247200 447920672 449779264 457098675 461918193 463834866 464648000 466576000 479168250 481156500 483542400 485557160 487571920 511112800 513233600 527085075 529698720 531896640 531905798 534112876 551769500 554059000 557577600 559900840 562224080 582668592 585086304 604428000 606936000 606946450 609464900 613335360 615880320 615890924 618446488 638891000 641542000 662123400 664870800 667641095 671881008 674668896 696972000 699864000 699876050 702780100 706264960 728335740 731357880 761831125 766669200 769850400 769863655 773058110 776891456 780115072 797858697 801169314 805904000 827654250 831088500 839851260 843336120 878475125 882831200 886494400 895841344 899558528 910419675 914197350 923836386 927669732 929296000 958336500 962313000 971114320 975143840 1022225600 1026467200 1049814075 1054170150 1059397440 1063793280 1063811596 1068225752 1103539000 1108118000 1119801680 1124448160 1159587165 1165337184 1170172608 1208856000 1213872000 1213892900 1218929800 1226670720 1231781848 1236892976 1277782000 1283084000 1324246800 1329741600 1329764495 1335282190 1343762016 1349337792 1393944000 1399728000 1399752100 1405560200 1456671480 1462715760 1468810409 1517366125 1523662250 1533338400 1539700800 1539727310 1546116220 1553782912 1595717394 1602338628 1655308500 1662177000 1679702520 1686672240 1693700041 1749690125 1756950250 1765662400 1772988800 1791682688 1820839350 1828394700 1847672772 1855339464 1916673000 1924626000 1932645275 1942228640 1950287680 2002923285 2044451200 2099628150 2108340300 2118794880 2127623192 2136451504 2207078000 2216236000 2239603360 2248896320 2285493375 2309590965 2319174330 2330674368 2340345216 2417712000 2427785800 2437859600 2463563696 2473785952 2555564000 2566168000 2635425375 2648493600 2659483200 2659528990 2670564380 2687524032 2698675584 2787888000 2799504200 2811120400 2913342960 2925431520 2925481889 2937620818 3034732250 3047324500 3066676800 3079401600 3079454620 3092232440 3191434788 3204677256 3310617000 3324354000 3338205475 3359405040 3373344480 3387400082 3499380250 3513900500 3531324800 3641678700 3656789400 3695345544 3710678928 3833346000 3849252000 3849318275 3865290550 3884457280 3900575360 3989293485 4005846570 4199256300 4216680600 4255246384 4272903008 4406431227 4414156000 4432472000 4479206720 4497792640 4552098375 4570986750 4619181930 4638348660 4661348736 4855571600 4875719200 4927127392 4947571904 5081100123 5111128000 5132336000 5249070375 5270850750 5296987200 5318966400 5319057980 5341128760 5375048064 5599008400 5622240800 5797935825 5826685920 5850863040 5850963778 5875241636 6069464500 6094649000 6133353600 6158909240 6184464880 6382869576 6409354512 6621234000 6648708000 6648822475 6676410950 6718810080 6746688960 6774800164 6998760500 7027801000 7283357400 7313578800 7344052045 7390691088 7421357856 7666692000 7698504000 7698636550 7730581100 7768914560 7978586970 8011693140 8398512600 8433361200 8468500205 8510492768 8545806016 8776445667 8812862454 8828312000 8864944000 8958413440 9104196750 9141973500 9238363860 9276697320 9663226375 9711143200 9751438400 9854254784 9895143808 10014616425 10162200246 10222256000 10498140750 10541701500 10593974400 10638115960 10682257520 11198016800 11244481600 11547954825 11595871650 11653371840 11701726080 11701927556 11750483272 12138929000 12189298000 12317818480 12368929760 12765739152 12818709024 13242468000 13297416000 13297644950 13352821900 13437620160 13493377920 13549600328 13997521000 14055602000 14566714800 14627157600 14627409445 14688104090 14781382176 14842715712 15333384000 15397008000 15397273100 15461162200 15957173940 16023386280 16691027375 16797025200 16866722400 16937000410 17020985536 17091612032 17552891334 17625724908 17656624000 18208393500 18283947000 18476727720 18553394640 18630700451 19246591375 19326452750 19422286400 19502876800 19708509568 19946467425 20029232850 20324400492 20996281500 21083403000 21276231920 21364515040 22032156135 22396033600 22488963200 23095909650 23191743300 23306743680 23403855112 23500966544 24277858000 24378596000 24635636960 24737859520 25405500615 25531478304 25637418048 26484936000 26594832000 26595289900 26705643800 26875240320 27099200656 27995042000 28111204000 28989679125 29133429600 29254315200 29254818890 29376208180 29562764352 29685431424 30666768000 30794546200 30922324400 31914347880 32046772560 32180300779 33244112375 33382054750 33594050400 33733444800 33874000820 34041971072 35105782668 35251449816 36416787000 36567894000 36720260225 36953455440 37106789280 37261400902 38493182750 38652905500 38844572800 39892934850 40058465700 40648800984 41992563000 42166806000 42342501025 42552463840 42729030080 43882228335 44064312270 44792067200 46191819300 46383486600 46807710224 47001933088 48555716000 48757192000 49271273920 49475719040 50073082125 50811001230 51062956608 51274836096 52969872000 53190579800 53411287600 54198401312 55892101353 55990084000 56222408000 57739774125 57979358250 58266859200 58508630400 58509637780 58752416360 59125528704 61589092400 61844648800 63828695760 64093545120 64360601558 66488224750 66764109500 67188100800 67466889600 67748001640 70211565336 70502899632 72833574000 73135788000 73137047225 73440520450 73906910880 74213578560 74522801804 76986365500 77305811000 79785869700 80116931400 81297601968 83985126000 84333612000 84685002050 85104927680 85458060160 87764456670 88128624540 92383638600 92766973200 93153502255 93615420448 94003866176 96540902337 97111432000 97514384000 98542547840 99732337125 100146164250 101622002460 102125913216 106381159600 106822575200 108396802624 110160780675 111784202706 111980168000 112444816000 115479548250 115958716500 116533718400 117019275560 117504832720 123178184800 123689297600 127027503075 127657391520 128187090240 128721203116 132976449500 133528219000 134376201600 135496003280 140423130672 141005799264 145667148000 146271576000 146274094450 146881040900 147813821760 148427157120 149045603608 153972731000 154611622000 159571739400 160233862800 160901503895 162595203936 167970252000 168667224000 169370004100 170209855360 175528913340 176257249080 183601301125 184767277200 185533946400 186307004510 187230840896 188007732352 193081804674 194222864000 199464674250 200292328500 203244004920 211712505125 212762319200 213645150400 216793605248 219411141675 220321561350 223568405412 223960336000 230959096500 231917433000 234038551120 235009665440 246356369600 247378595200 254055006150 255314783040 256374180480 257442406232 265952899000 267056438000 270992006560 279460506765 280846261344 282011598528 291334296000 292543152000 292548188900 293762081800 295627643520 298091207216 307945462000 309223244000 319143478800 320467725600 321803007790 325190407872 335940504000 337334448000 338740008200 351057826680 352514498160 353983308569 365685236125 367202602250 369534554400 371067892800 372614009020 374461681792 386163609348 398929348500 400584657000 406488009840 423425010250 425524638400 427290300800 438822283350 440643122700 447136810824 461918193000 463834866000 465767511275 468077102240 470019330880 482704511685 492712739200 508110012300 510629566080 514884812464 531905798000 534112876000 541984013120 550803903375 558921013530 561692522688 564023197056 582668592000 585096377800 587524163600 596182414432 615890924000 618446488000 635137515375 638286957600 640935451200 643606015580 650380815744 671881008000 677480016400 702115653360 705028996320 707966617138 731370472250 734405204500 739069108800 742135785600 745228018040 772327218696 797858697000 801169314000 804507519475 812976019680 846850020500 851049276800 877644566700 881286245400 894273621648 923836386000 927669732000 931535022550 936154204480 940038661760 965409023370 1016220024600 1029769624928 1061949925707 1063811596000 1068225752000 1083968026240 1097055708375 1101607806750 1117842027060 1123385045376 1170192755600 1175048327200 1192364828864 1231781848000 1236892976000 1270275030750 1276573915200 1281870902400 1287212031160 1354960032800 1397302533825 1404231306720 1410057992640 1415933234276 1462740944500 1468810409000 1478138217600 1490456036080 1544654437392 1595717394000 1602338628000 1609015038950 1625952039360 1693700041000 1755289133400 1762572490800 1769916542845 1788547243296 1847672772000 1855339464000 1863070045100 1872308408960 1930818046740 2032440049200 2059539249856 2123899851414 2127623192000 2136451504000 2194111416750 2203215613500 2235684054120 2328837556375 2340385511200 2350096654400 2384729657728 2413522558425 2463563696000 2540550061500 2553147830400 2574424062320 2709920065600 2794605067650 2808462613440 2820115985280 2831866468552 2925481889000 2937620818000 2980912072160 3089308874784 3191434788000 3204677256000 3218030077900 3251904078720 3387400082000 3510578266800 3525144981600 3539833085690 3577094486592 3695345544000 3710678928000 3726140090200 3861636093480 4022537597375 4064880098400 4119078499712 4247799702828 4255246384000 4388222833500 4406431227000 4471368108240 4657675112750 4680771022400 4700193308800 4827045116850 5081100123000 5148848124640 5309749628535 5419840131200 5589210135300 5616925226880 5663732937104 5850963778000 5875241636000 5961824144320 6178617749568 6382869576000 6409354512000 6436060155800 6774800164000 6986512669125 7021156533600 7050289963200 7079666171380 7154188973184 7390691088000 7452280180400 7723272186960 8045075194750 8129760196800 8495599405656 8776445667000 8812862454000 8849582714225 8942736216480 9315350225500 9361542044800 9654090233700 10162200246000 10297696249280 10619499257070 11178420270600 11327465874208 11701927556000 11750483272000 11923648288640 12067612792125 12357235499136 12765739152000 12872120311600 13549600328000 13973025338250 14042313067200 14100579926400 14159332342760 14904560360800 15446544373920 16090150389500 16259520393600 16991198811312 17552891334000 17625724908000 17699165428450 17885472432960 18630700451000 19308180467400 20324400492000 20595392498560 21238998514140 22356840541200 22654931748416 23403855112000 23500966544000 24135225584250 25744240623200 26548748142675 27099200656000 27946050676500 28084626134400 28318664685520 29809120721600 30893088747840 32180300779000 33982397622624 35105782668000 35251449816000 35398330856900 35770944865920 37261400902000 38616360934800 40648800984000 42477997028280 44247913571125 44713681082400 45309863496832 46807710224000 48270451168500 51488481246400 53097496285350 55892101353000 56637329371040 59618241443200 61786177495680 64360601558000 67964795245248 70211565336000 70502899632000 70796661713800 74522801804000 77232721869600 81297601968000 84955994056560 88495827142250 89427362164800 96540902337000 102976962492800 106194992570700 111784202706000 113274658742080 128721203116000 132743740713375 135929590490496 140423130672000 141593323427600 149045603608000 154465443739200 169911988113120 176991654284500 178854724329600 193081804674000 212389985141400 223568405412000 226549317484160 257442406232000 265487481426750 283186646855200 298091207216000 308930887478400 339823976226240 353983308569000 386163609348000 424779970282800 447136810824000 514884812464000 530974962853500 566373293710400 679647952452480 707966617138000 772327218696000 849559940565600 894273621648000 1061949925707000 1132746587420800 1415933234276000 1544654437392000 1699119881131200 2123899851414000 2831866468552000 3398239762262400 4247799702828000 5663732937104000 8495599405656000 16991198811312000
- Sum of all divisors σ(n): 65486649472358400
- Sum of proper divisors (its aliquot sum) s(n): 48495450661046400
- 16991198811312000 is an abundant number, because the sum of its proper divisors (48495450661046400) is greater than itself. Its abundance is 31504251849734400
Bases of 16991198811312000
- Binary: 1111000101110101100111110000010111010011001111100000002
- Hexadecimal: 0x3C5D67C174CF80
- Base-36: 4NAVKZ4I2YO
Squares and roots of 16991198811312000
- 16991198811312000 squared (169911988113120002) is 288700837045530321779161344000000
- 16991198811312000 cubed (169911988113120003) is 4905373319232794217436739093145060323328000000000
-
The
square root of 16991198811312000 is 130350292.7166333601 -
The
cube root of 16991198811312000 is 257083.7782012305
Scales and comparisons
How big is 16991198811312000?- 16,991,198,811,312,000 seconds is equal to 540,267,564 years, 50 weeks, 3 days, 10 hours, 40 minutes.
-
To count from 1 to 16,991,198,811,312,000 would take you about one billion, six hundred twenty million, eight hundred two thousand, six hundred ninety-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 16991198811312000 cubic inches would be around 21423.6 feet tall.
Recreational maths with 16991198811312000
- 16991198811312000 backwards is 00021311889119961
- 16991198811312000 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 16991198811312000's digits is 60
- 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 16991198811312000 - Facts about the integer". Numbermatics.com. 2024. Web. 21 June 2024.
APA style:
Numbermatics. (2024). Number 16991198811312000 - Facts about the integer. Retrieved 21 June 2024, from https://numbermatics.com/n/16991198811312000/
Chicago style:
Numbermatics. 2024. "Number 16991198811312000 - Facts about the integer". https://numbermatics.com/n/16991198811312000/
The information we have on file for 16991198811312000 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 16991198811312000, math, Factors of 16991198811312000, curriculum, school, college, exams, university, Prime factorization of 16991198811312000, STEM, science, technology, engineering, physics, economics, calculator, sixteen quadrillion, nine hundred ninety-one trillion, one hundred ninety-eight billion, eight hundred eleven million, three hundred twelve thousand.