18420556949840

Names of 18420556949840

• Cardinal: 18420556949840 can be written as Eighteen trillion, four hundred twenty billion, five hundred fifty-six million, nine hundred forty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.842055694984 × 10¹³

Factors of 18420556949840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5313

Divisors of 18420556949840

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 4 5 8 10 16 17 19 20 29 34 38 40 58 61 68 76 79 80 85 95 116 122 136 145 152 158 170 190 232 244 272 290 304 305 316 323 340 380 395 464 488 493 551 580 610 632 646 680 760 790 976 986 1037 1102 1159 1160 1220 1264 1292 1343 1360 1501 1520 1580 1615 1769 1972 2074 2204 2291 2318 2320 2440 2465 2584 2686 2755 3002 3160 3230 3538 3944 4148 4408 4582 4636 4819 4880 4930 5101 5168 5185 5372 5510 5795 6004 6320 6460 6715 7076 7505 7888 8296 8816 8845 9164 9272 9367 9638 9860 10202 10370 10744 11020 11455 11590 12008 12920 13430 14152 15010 16592 17690 18328 18544 18734 19276 19703 19720 20404 20740 21488 22040 22910 23180 24016 24095 25505 25517 25840 26860 28304 30020 30073 33611 35380 36656 37468 38552 38947 39406 39440 40808 41480 43529 44080 45820 46360 46835 48190 51010 51034 53720 60040 60146 67222 70760 74936 77104 77894 78812 81616 81923 82960 86717 87058 91561 91640 92720 93670 96380 96919 98515 102020 102068 107440 120080 120292 127585 134444 139751 141520 147929 149872 150365 155788 157624 163846 168055 173434 174116 183122 183280 187340 192760 193838 194735 197030 204040 204136 217645 240584 255170 268888 279502 295858 300730 311161 311576 315248 327692 336110 346868 348232 366244 374680 385520 387676 389470 394060 402979 408080 408272 409615 433585 435290 457805 481168 484595 510340 537776 559004 571387 591716 601460 622322 623152 655384 672220 693736 696464 698755 732488 739645 739993 749360 775352 778940 788120 805958 819230 867170 870580 915610 969190 1020680 1118008 1142774 1183432 1202920 1244644 1310768 1344440 1387472 1397510 1464976 1479290 1479986 1550704 1555805 1556537 1557880 1576240 1611916 1638460 1647623 1734340 1741160 1831220 1938380 2014895 2041360 2236016 2285548 2366864 2375767 2405840 2489288 2514793 2655269 2688880 2795020 2810651 2856935 2958580 2959972 3111610 3113074 3115760 3223832 3276920 3295246 3468680 3482320 3662440 3699965 3876760 4029790 4571096 4751534 4978576 5029586 5289737 5310538 5590040 5621302 5713870 5912059 5917160 5919944 6223220 6226148 6447664 6553840 6590492 6850643 6937360 7324880 7399930 7656601 7753520 7782685 8059580 8238115 9023669 9142192 9503068 10059172 10579474 10621076 11180080 11242604 11427740 11686391 11824118 11834320 11839888 11878835 12446440 12452296 12573965 13180984 13276345 13701286 14053255 14799860 15313202 15565370 16119160 16476230 18047338 19006136 20118344 21158948 21242152 22485208 22855480 23372782 23648236 23757670 24581719 24892880 24904592 25147930 26361968 26448685 26552690 27402572 28106510 29560295 29599720 30626404 31130740 32238320 32952460 34253215 36094676 38012272 38283005 40236688 42317896 42484304 44970416 45118345 45139573 45710960 46745564 47296472 47515340 47781067 49163438 50295860 52897370 53105380 54805144 56213020 58431955 59120590 59199440 61252808 62261480 65904920 68506430 72189352 76566010 84635792 90236690 90279146 93491128 94592944 95030680 95562134 98326876 100505003 100591720 105794740 106210760 109610288 112426040 116863910 118241180 122505616 122908595 124522960 130162217 131809840 137012860 144378704 153132020 153402373 171449711 180473380 180558292 186982256 190061360 191124268 196653752 198668647 201010006 201183440 211589480 212421520 222041429 224852080 225697865 233727820 236482360 238905335 245817190 260324434 274025720 306264040 306804746 342899422 360946760 361116584 382248536 393307504 397337294 402020012 417889223 423178960 444082858 451395730 467052661 467455640 472964720 477810670 491634380 502525015 520648868 548051440 612528080 613609492 650811085 685798844 712869851 721893520 722233168 764497072 767011865 794674588 804040024 835778446 857248555 888165716 902791460 934105322 934911280 955621340 983268760 993343235 1005050030 1041297736 1110207145 1227218984 1301622170 1371597688 1425739702 1534023730 1589349176 1608080048 1671556892 1714497110 1776331432 1805582920 1868210644 1911242680 1966537520 1986686470 2010100060 2082595472 2089446115 2220414290 2335263305 2454437968 2603244340 2743195376 2851479404 2914645087 3068047460 3178698352 3343113784 3428994220 3552662864 3564349255 3611165840 3736421288 3774704293 3822485360 3973372940 4020200120 4178892230 4440828580 4670526610 5206488680 5702958808 5829290174 6136094920 6686227568 6857988440 7128698510 7472842576 7549408586 7939895237 7946745880 8040400240 8357784460 8881657160 9341053220 10412977360 11405917616 11658580348 12118787467 12272189840 13544527169 13715976880 14257397020 14573225435 15098817172 15879790474 15893491760 16715568920 17763314320 18682106440 18873521465 23317160696 24237574934 27089054338 28514794040 29146450870 30197634344 31759580948 33431137840 37364212880 37747042930 39699476185 46634321392 48475149868 54178108676 57029588080 58292901740 60395268688 60593937335 63519161896 67722635845 75494085860 79398952370 96950299736 108356217352 116585803480 121187874670 127038323792 135445271690 150988171720 158797904740 193900599472 216712434704 230256961873 233171606960 242375749340 270890543380 301976343440 317595809480 460513923746 484751498680 541781086760 635191618960 921027847492 969502997360 1083562173520 1151284809365 1842055694984 2302569618730 3684111389968 4605139237460 9210278474920 18420556949840
• Sum of all divisors σ(n): 50834532096000
• Sum of proper divisors (its aliquot sum) s(n): 32413975146160
• 18420556949840 is an abundant number, because the sum of its proper divisors (32413975146160) is greater than itself. Its abundance is 13993418196320

Bases of 18420556949840

• Binary: 100001100000011011110110000001110100101010000₂
• Hexadecimal: 0x10C0DEC0E950
• Base-36: 6J2AC047K

Squares and roots of 18420556949840

• 18420556949840 squared (18420556949840²) is 339316918342298724276025600
• 18420556949840 cubed (18420556949840³) is 6250406618368522537504109288573755904000
• The square root of 18420556949840 is 4291917.6308312349
• The cube root of 18420556949840 is 26409.9504071085

Scales and comparisons

• 18,420,556,949,840 seconds is equal to 585,716 years, 38 weeks, 14 hours, 57 minutes, 20 seconds.
• To count from 1 to 18,420,556,949,840 would take you about one million, four hundred sixty-four thousand, two hundred ninety-one 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 18420556949840 cubic inches would be around 2200.8 feet tall.

Recreational maths with 18420556949840

• 18420556949840 backwards is 04894965502481
• The number of decimal digits it has is: 14
• The sum of 18420556949840's digits is 65
• More coming soon!