50252420400000
50,252,420,400,000 is an even composite number composed of six prime numbers multiplied together.
50252420400000 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two thousand, three hundred four divisors.
Prime factorization of 50252420400000:
27 × 3 × 55 × 72 × 133 × 389
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 5 × 7 × 7 × 13 × 13 × 13 × 389)See below for interesting mathematical facts about the number 50252420400000 from the Numbermatics database.
Names of 50252420400000
- Cardinal: 50252420400000 can be written as Fifty trillion, two hundred fifty-two billion, four hundred twenty million, four hundred thousand.
Scientific notation
- Scientific notation: 5.02524204 × 1013
Factors of 50252420400000
Divisors of 50252420400000
- Number of divisors d(n): 2304
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 25 26 28 30 32 35 39 40 42 48 49 50 52 56 60 64 65 70 75 78 80 84 91 96 98 100 104 105 112 120 125 128 130 140 147 150 156 160 168 169 175 182 192 195 196 200 208 210 224 240 245 250 260 273 280 294 300 312 320 325 336 338 350 364 375 384 389 390 392 400 416 420 448 455 480 490 500 507 520 525 546 560 588 600 624 625 637 640 650 672 676 700 728 735 750 778 780 784 800 832 840 845 875 896 910 960 975 980 1000 1014 1040 1050 1092 1120 1167 1176 1183 1200 1225 1248 1250 1274 1300 1344 1352 1365 1400 1456 1470 1500 1556 1560 1568 1600 1625 1664 1680 1690 1750 1820 1875 1911 1920 1945 1950 1960 2000 2028 2080 2100 2184 2197 2240 2275 2334 2352 2366 2400 2450 2496 2500 2535 2548 2600 2625 2688 2704 2723 2730 2800 2912 2940 3000 3112 3120 3125 3136 3185 3200 3250 3360 3380 3500 3549 3640 3675 3750 3822 3890 3900 3920 4000 4056 4160 4200 4225 4368 4375 4394 4480 4550 4668 4704 4732 4800 4875 4900 4992 5000 5057 5070 5096 5200 5250 5408 5446 5460 5600 5824 5835 5880 5915 6000 6125 6224 6240 6250 6272 6370 6500 6591 6720 6760 6825 7000 7098 7280 7350 7500 7644 7780 7800 7840 8000 8112 8125 8169 8281 8320 8400 8450 8736 8750 8788 9100 9336 9375 9408 9464 9555 9600 9725 9750 9800 10000 10114 10140 10192 10400 10500 10816 10892 10920 10985 11200 11375 11648 11670 11760 11830 12000 12250 12448 12480 12500 12675 12740 13000 13125 13182 13440 13520 13615 13650 14000 14196 14560 14700 15000 15171 15288 15379 15560 15600 15680 15925 16000 16224 16250 16338 16562 16800 16900 17472 17500 17576 17745 18200 18375 18672 18750 18816 18928 19061 19110 19450 19500 19600 20000 20228 20280 20384 20800 21000 21125 21632 21784 21840 21875 21970 22400 22750 23340 23520 23660 24000 24375 24500 24843 24896 24960 25000 25285 25350 25480 26000 26250 26364 27040 27230 27300 28000 28392 29120 29175 29400 29575 30000 30342 30576 30625 30758 31120 31200 31360 31850 32448 32500 32676 32955 33124 33600 33800 34125 34944 35000 35152 35399 35490 36400 36750 37344 37500 37856 38122 38220 38900 39000 39200 40000 40456 40560 40625 40768 40845 41405 41600 42000 42250 43568 43680 43750 43940 45500 46137 46680 47040 47320 47775 48000 48625 48750 49000 49686 49792 50000 50570 50700 50960 52000 52500 52728 54080 54460 54600 54925 56000 56784 56875 57183 58240 58350 58800 59150 60000 60684 61152 61250 61516 62240 62400 63375 63700 64896 65000 65352 65625 65741 65910 66248 67200 67600 68075 68250 70000 70304 70798 70980 72800 73500 74688 75000 75712 75855 76244 76440 76895 77800 78000 78400 79625 80000 80912 81120 81250 81536 81690 82810 84000 84500 87136 87360 87500 87880 88725 91000 91875 92274 93360 94080 94640 95305 95550 97250 97500 98000 99372 100000 101140 101400 101920 104000 105000 105456 105625 106197 107653 108160 108920 109200 109850 112000 113568 113750 114366 116700 117600 118300 120000 121368 121875 122304 122500 123032 124215 124480 124800 126425 126750 127400 130000 130704 131250 131482 131820 132496 135200 136150 136500 140000 140608 141596 141960 145600 145875 147000 147875 149376 150000 151424 151710 152488 152880 153125 153790 155600 156000 156800 159250 161824 162240 162500 163380 164775 165620 168000 169000 170625 174272 174720 175000 175760 176995 177450 182000 183750 184548 186720 189280 190610 191100 194500 195000 196000 197223 198744 200000 202280 202800 203840 204225 207025 208000 210000 210912 211250 212394 215306 217840 218400 219700 227136 227500 228732 230685 233400 235200 236600 238875 240000 242736 243125 243750 244608 245000 246064 247793 248430 248960 252850 253500 254800 260000 261408 262500 262964 263640 264992 270400 272300 273000 274625 280000 281216 283192 283920 284375 285915 291200 291750 294000 295750 300000 303420 304976 305760 306250 307580 311200 312000 316875 318500 322959 323648 324480 325000 326760 328705 329550 331240 336000 338000 340375 341250 348544 350000 351520 353990 354900 364000 367500 369096 373440 378560 379275 381220 382200 384475 389000 390000 392000 394446 397488 398125 400000 404560 405600 407680 408450 414050 420000 421824 422500 424788 430612 435680 436800 439400 443625 454272 455000 457464 459375 460187 461370 466800 470400 473200 476525 477750 485472 486250 487500 490000 492128 495586 496860 505700 507000 509600 520000 522816 525000 525928 527280 528125 529984 530985 538265 540800 544600 546000 549250 560000 566384 567840 568750 571830 583500 588000 591500 600000 606840 609952 611520 612500 615160 621075 622400 624000 632125 633750 637000 645918 647296 650000 653520 657410 659100 662480 676000 680750 682500 700000 703040 707980 709800 728000 729375 735000 738192 739375 743379 746880 757120 758550 762440 764400 768950 778000 780000 784000 788892 794976 796250 809120 811200 816900 823875 828100 840000 843648 845000 849576 853125 854633 861224 871360 873600 878800 884975 887250 910000 914928 918750 920374 922740 933600 946400 953050 955500 970944 972500 975000 980000 984256 986115 991172 993720 1011400 1014000 1019200 1021125 1035125 1040000 1045632 1050000 1051856 1054560 1056250 1059968 1061970 1076530 1089200 1092000 1098500 1132768 1135680 1137500 1143660 1153425 1167000 1176000 1183000 1194375 1200000 1213680 1215625 1219904 1223040 1225000 1230320 1238965 1242150 1244800 1264250 1267500 1274000 1291836 1300000 1307040 1314820 1318200 1324960 1352000 1361500 1365000 1373125 1380561 1400000 1406080 1415960 1419600 1429575 1456000 1458750 1470000 1476384 1478750 1486758 1517100 1524880 1528800 1537900 1556000 1560000 1577784 1584375 1589952 1592500 1614795 1618240 1622400 1633800 1643525 1647750 1656200 1680000 1690000 1699152 1701875 1706250 1709266 1722448 1742720 1757600 1769950 1774500 1820000 1829856 1837500 1840748 1845480 1867200 1892800 1896375 1906100 1911000 1922375 1941888 1945000 1950000 1960000 1968512 1972230 1982344 1987440 1990625 2022800 2028000 2038400 2042250 2070250 2100000 2103712 2109120 2112500 2123940 2153060 2178400 2184000 2197000 2218125 2265536 2271360 2275000 2287320 2300935 2306850 2334000 2352000 2366000 2382625 2388750 2427360 2431250 2439808 2450000 2460640 2477930 2484300 2528500 2535000 2548000 2563899 2583672 2600000 2614080 2629640 2636400 2649920 2654925 2691325 2704000 2723000 2730000 2746250 2761122 2800000 2831920 2839200 2859150 2917500 2940000 2952768 2957500 2973516 3034200 3049760 3057600 3075800 3105375 3112000 3120000 3155568 3160625 3168750 3179904 3185000 3221309 3229590 3236480 3267600 3287050 3295500 3312400 3380000 3398304 3403750 3412500 3418532 3444896 3515200 3539900 3549000 3640000 3646875 3659712 3675000 3681496 3690960 3696875 3716895 3734400 3785600 3792750 3812200 3822000 3844750 3890000 3900000 3920000 3944460 3964688 3974880 3981250 4045600 4056000 4084500 4119375 4140500 4200000 4207424 4218240 4225000 4247880 4273165 4306120 4356800 4368000 4394000 4424875 4436250 4531072 4550000 4574640 4601870 4613700 4668000 4732000 4765250 4777500 4854720 4862500 4900000 4921280 4930575 4955860 4968600 5057000 5070000 5096000 5105625 5127798 5167344 5175625 5200000 5228160 5259280 5272800 5299840 5309850 5382650 5446000 5460000 5492500 5522244 5663840 5678400 5718300 5767125 5835000 5880000 5905536 5915000 5947032 5971875 5982431 6068400 6099520 6115200 6151600 6194825 6210750 6224000 6311136 6321250 6337500 6370000 6442618 6459180 6535200 6574100 6591000 6624800 6760000 6796608 6807500 6825000 6837064 6865625 6889792 6902805 7030400 7079800 7098000 7147875 7280000 7293750 7319424 7350000 7362992 7381920 7393750 7433790 7585500 7624400 7644000 7689500 7780000 7800000 7888920 7929376 7949760 7962500 8073975 8091200 8112000 8169000 8217625 8238750 8281000 8400000 8414848 8450000 8495760 8509375 8546330 8612240 8713600 8788000 8849750 8872500 9100000 9149280 9203740 9227400 9336000 9464000 9481875 9530500 9555000 9611875 9663927 9709440 9725000 9800000 9842560 9861150 9911720 9937200 10114000 10140000 10192000 10211250 10255596 10334688 10351250 10518560 10545600 10619700 10765300 10892000 10920000 10985000 11044488 11090625 11327680 11356800 11436600 11504675 11534250 11670000 11760000 11830000 11894064 11913125 11943750 11964862 12136800 12199040 12303200 12389650 12421500 12622272 12642500 12675000 12740000 12819495 12885236 12918360 13070400 13148200 13182000 13249600 13274625 13456625 13520000 13593216 13615000 13650000 13674128 13731250 13779584 13805610 14159600 14196000 14295750 14587500 14700000 14725984 14763840 14787500 14867580 15171000 15248800 15288000 15379000 15526875 15560000 15600000 15777840 15803125 15858752 15899520 15925000 16106545 16147950 16182400 16338000 16435250 16477500 16562000 16900000 16991520 17018750 17092660 17224480 17576000 17699500 17745000 17947293 18200000 18298560 18407480 18454800 18584475 18672000 18928000 18963750 19061000 19110000 19223750 19327854 19450000 19600000 19722300 19823440 19874400 20228000 20280000 20422500 20511192 20596875 20669376 20702500 21037120 21091200 21239400 21365825 21530600 21784000 21840000 21970000 22088976 22124375 22181250 22655360 22873200 23009350 23068500 23340000 23660000 23788128 23826250 23887500 23929724 24273600 24606400 24652875 24779300 24843000 25244544 25285000 25350000 25480000 25528125 25638990 25770472 25836720 25878125 26140800 26296400 26364000 26499200 26549250 26913250 27230000 27300000 27348256 27462500 27611220 28319200 28392000 28591500 28835625 29175000 29400000 29451968 29527680 29575000 29735160 29912155 30342000 30497600 30576000 30758000 30974125 31053750 31120000 31555680 31606250 31717504 31850000 32213090 32295900 32676000 32870500 32955000 33124000 33800000 33983040 34037500 34185320 34448960 34514025 35152000 35399000 35490000 35739375 35894586 36400000 36597120 36814960 36909600 37168950 37927500 38122000 38220000 38447500 38655708 38900000 39444600 39646880 39748800 40369875 40456000 40560000 40845000 41022384 41088125 41193750 41338752 41405000 41877017 42074240 42478800 42731650 43061200 43568000 43940000 44177952 44248750 44362500 45746400 46018700 46137000 46680000 47320000 47409375 47576256 47652500 47775000 47859448 48059375 48319635 48547200 49212800 49305750 49558600 49686000 50570000 50700000 50960000 51056250 51277980 51540944 51673440 51756250 52592800 52728000 53098500 53826500 54460000 54600000 54696512 54925000 55222440 56638400 56784000 57183000 57523375 57671250 58350000 58800000 58903936 59150000 59470320 59565625 59824310 60684000 60995200 61516000 61948250 62107500 63111360 63212500 63700000 64097475 64426180 64591800 65352000 65741000 65910000 66248000 66373125 67283125 67600000 67966080 68075000 68370640 68897920 69028050 70798000 70980000 71478750 71789172 73629920 73819200 74337900 75855000 76244000 76440000 76895000 77311416 77634375 77800000 78889200 79293760 79497600 80532725 80739750 80912000 81690000 82044768 82176250 82387500 82810000 83754034 84957600 85463300 86122400 87880000 88355904 88497500 88725000 89736465 91492800 92037400 92274000 92922375 93360000 94640000 94818750 95152512 95305000 95550000 95718896 96118750 96639270 98611500 99117200 99372000 101140000 101400000 102112500 102555960 103081888 103346880 103512500 105185600 105456000 106197000 106829125 107653000 108920000 109200000 109393024 109850000 110444880 110621875 113276800 114366000 115046750 115342500 116700000 118300000 118940640 119131250 119648620 121368000 123032000 123264375 123896500 124215000 125631051 126222720 126425000 127400000 128194950 128852360 129183600 130704000 131482000 131820000 132496000 132746250 134566250 136150000 136741280 138056100 141596000 141960000 142957500 143578344 144178125 147259840 147638400 148675800 149560775 151710000 152488000 152880000 153790000 154622832 154870625 155268750 155600000 157778400 158587520 161065450 161479500 163380000 164089536 164352500 164775000 165620000 167508068 169915200 170926600 172244800 172570125 175760000 176711808 176995000 177450000 178696875 179472930 182985600 184074800 184548000 185844750 189637500 190610000 191100000 191437792 192237500 193278540 197223000 198234400 198744000 201849375 202280000 202800000 204225000 205111920 205440625 206163776 206693760 207025000 209385085 210371200 212394000 213658250 215306000 217840000 219700000 220889760 221243750 228732000 230093500 230685000 233400000 236600000 237881280 238262500 239297240 241598175 242736000 246064000 246528750 247793000 248430000 251262102 252850000 254800000 256389900 257704720 258367200 262964000 263640000 265492500 269132500 272300000 273482560 276112200 283192000 283920000 285915000 287156688 287616875 288356250 294519680 297351600 299121550 303420000 304976000 307580000 309245664 309741250 310537500 315556800 320487375 322130900 322959000 326760000 328179072 328705000 329550000 331240000 331865625 335016136 336415625 339830400 341853200 344489600 345140250 353990000 354900000 357393750 358945860 368149600 369096000 371689500 379275000 381220000 382200000 382875584 384475000 386557080 394446000 396468800 397488000 402663625 403698750 404560000 408450000 410223840 410881250 412327552 414050000 418770170 424788000 427316500 430612000 439400000 441779520 442487500 448682325 457464000 460187000 461370000 464611875 466800000 473200000 475762560 476525000 478594480 483196350 493057500 495586000 496860000 502524204 505700000 512779800 515409440 516734400 525928000 527280000 530985000 534145625 538265000 544600000 546965120 552224400 566384000 571830000 574313376 575233750 576712500 594703200 598243100 606840000 615160000 616321875 618491328 619482500 621075000 628155255 631113600 640974750 644261800 645918000 653520000 657410000 659100000 662480000 663731250 670032272 672831250 683706400 690280500 707980000 709800000 714787500 717891720 736299200 738192000 743379000 747803875 758550000 762440000 764400000 765751168 768950000 773114160 774353125 788892000 792937600 805327250 807397500 816900000 820447680 821762500 828100000 837540340 849576000 854633000 861224000 862850625 878800000 883559040 884975000 897364650 914928000 920374000 922740000 929223750 953050000 957188960 966392700 986115000 991172000 993720000 1005048408 1009246875 1011400000 1025559600 1030818880 1033468800 1046925425 1051856000 1061970000 1068291250 1076530000 1089200000 1104448800 1143660000 1148626752 1150467500 1153425000 1189406400 1196486200 1207990875 1213680000 1230320000 1232643750 1236982656 1238965000 1242150000 1256310510 1281949500 1288523600 1291836000 1314820000 1318200000 1327462500 1340064544 1345662500 1367412800 1380561000 1415960000 1419600000 1429575000 1435783440 1438084375 1472598400 1486758000 1495607750 1517100000 1524880000 1537900000 1546228320 1548706250 1577784000 1602436875 1610654500 1614795000 1633800000 1640895360 1643525000 1656200000 1675080680 1699152000 1709266000 1722448000 1725701250 1769950000 1794729300 1840748000 1845480000 1858447500 1906100000 1914377920 1932785400 1972230000 1982344000 1987440000 2010096816 2013318125 2018493750 2022800000 2051119200 2061637760 2093850850 2123940000 2136582500 2153060000 2208897600 2243411625 2287320000 2297253504 2300935000 2306850000 2323059375 2378812800 2392972400 2415981750 2465287500 2477930000 2484300000 2512621020 2563899000 2577047200 2583672000 2629640000 2636400000 2654925000 2670728125 2680129088 2691325000 2734825600 2761122000 2831920000 2859150000 2871566880 2876168750 2973516000 2991215500 3034200000 3075800000 3092456640 3097412500 3140776275 3155568000 3204873750 3221309000 3229590000 3267600000 3287050000 3312400000 3350161360 3418532000 3451402500 3539900000 3589458600 3681496000 3690960000 3716895000 3739019375 3812200000 3828755840 3865570800 3944460000 3964688000 4020193632 4026636250 4036987500 4102238400 4187701700 4247880000 4273165000 4306120000 4314253125 4417795200 4486823250 4574640000 4601870000 4613700000 4646118750 4785944800 4831963500 4930575000 4955860000 4968600000 5025242040 5127798000 5154094400 5167344000 5234627125 5259280000 5309850000 5341456250 5360258176 5382650000 5522244000 5718300000 5743133760 5752337500 5947032000 5982431000 6039954375 6068400000 6151600000 6184913280 6194825000 6281552550 6409747500 6442618000 6459180000 6574100000 6700322720 6837064000 6902805000 7079800000 7178917200 7362992000 7433790000 7478038750 7624400000 7731141600 7888920000 8012184375 8040387264 8053272500 8073975000 8204476800 8375403400 8495760000 8546330000 8612240000 8628506250 8973646500 9203740000 9227400000 9292237500 9571889600 9663927000 9861150000 9911720000 9937200000 10050484080 10066590625 10255596000 10308188800 10469254250 10619700000 10682912500 10765300000 11044488000 11217058125 11436600000 11486267520 11504675000 11894064000 11964862000 12079908750 12389650000 12563105100 12819495000 12885236000 12918360000 13148200000 13400645440 13674128000 13805610000 14159600000 14357834400 14867580000 14956077500 15462283200 15703881375 15777840000 16024368750 16080774528 16106545000 16147950000 16750806800 17092660000 17257012500 17947293000 18407480000 18454800000 18584475000 18695096875 19143779200 19327854000 19722300000 19823440000 20100968160 20133181250 20511192000 20938508500 21239400000 21365825000 21530600000 22088976000 22434116250 22873200000 23009350000 23929724000 24159817500 24779300000 25126210200 25638990000 25770472000 25836720000 26173135625 26296400000 26801290880 27611220000 28715668800 29735160000 29912155000 30199771875 30924566400 31407762750 32048737500 32213090000 32295900000 33501613600 34185320000 34514025000 35894586000 36814960000 37168950000 37390193750 38655708000 39444600000 40201936320 40266362500 41022384000 41877017000 42478800000 42731650000 43061200000 44868232500 46018700000 47859448000 48319635000 49558600000 50252420400 51277980000 51540944000 52346271250 55222440000 56085290625 57431337600 59470320000 59824310000 60399543750 62815525500 64097475000 64426180000 64591800000 67003227200 68370640000 69028050000 71789172000 74337900000 74780387500 77311416000 78519406875 78889200000 80403872640 80532725000 83754034000 85463300000 89736465000 92037400000 95718896000 96639270000 99117200000 100504840800 102555960000 104692542500 110444880000 112170581250 119648620000 120799087500 125631051000 128194950000 128852360000 129183600000 130865678125 134006454400 138056100000 143578344000 148675800000 149560775000 154622832000 157038813750 161065450000 167508068000 170926600000 179472930000 184074800000 193278540000 201009681600 205111920000 209385085000 224341162500 239297240000 241598175000 251262102000 256389900000 257704720000 261731356250 276112200000 287156688000 297351600000 299121550000 314077627500 322130900000 335016136000 341853200000 358945860000 386557080000 392597034375 402019363200 418770170000 448682325000 478594480000 483196350000 502524204000 512779800000 523462712500 552224400000 598243100000 628155255000 644261800000 670032272000 717891720000 773114160000 785194068750 837540340000 897364650000 966392700000 1005048408000 1025559600000 1046925425000 1196486200000 1256310510000 1288523600000 1435783440000 1570388137500 1675080680000 1794729300000 1932785400000 2010096816000 2093850850000 2392972400000 2512621020000 3140776275000 3350161360000 3589458600000 3865570800000 4187701700000 5025242040000 6281552550000 7178917200000 8375403400000 10050484080000 12563105100000 16750806800000 25126210200000 50252420400000
- Sum of all divisors σ(n): 210789430488000
- Sum of proper divisors (its aliquot sum) s(n): 160537010088000
- 50252420400000 is an abundant number, because the sum of its proper divisors (160537010088000) is greater than itself. Its abundance is 110284589688000
Bases of 50252420400000
- Binary: 10110110110100010011011010101011000011100000002
- Hexadecimal: 0x2DB44DAAC380
- Base-36: HT9N5MKQO
Squares and roots of 50252420400000
- 50252420400000 squared (502524204000002) is 2525305756058336160000000000
- 50252420400000 cubed (502524204000003) is 126902726491983355636841664000000000000000
-
The
square root of 50252420400000 is 7088894.1591760277 -
The
cube root of 50252420400000 is 36902.2059330027
Scales and comparisons
How big is 50252420400000?- 50,252,420,400,000 seconds is equal to 1,597,871 years, 27 weeks, 3 days, 2 hours, 40 minutes.
-
To count from 1 to 50,252,420,400,000 would take you about three million, nine hundred ninety-four thousand, six hundred seventy-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 50252420400000 cubic inches would be around 3075.2 feet tall.
Recreational maths with 50252420400000
- 50252420400000 backwards is 00000402425205
- 50252420400000 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 50252420400000's digits is 24
- 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 50252420400000 - Facts about the integer". Numbermatics.com. 2024. Web. 5 June 2024.
APA style:
Numbermatics. (2024). Number 50252420400000 - Facts about the integer. Retrieved 5 June 2024, from https://numbermatics.com/n/50252420400000/
Chicago style:
Numbermatics. 2024. "Number 50252420400000 - Facts about the integer". https://numbermatics.com/n/50252420400000/
The information we have on file for 50252420400000 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 50252420400000, math, Factors of 50252420400000, curriculum, school, college, exams, university, Prime factorization of 50252420400000, STEM, science, technology, engineering, physics, economics, calculator, fifty trillion, two hundred fifty-two billion, four hundred twenty million, four hundred thousand.