18990742497707904

Names of 18990742497707904

• Cardinal: 18990742497707904 can be written as Eighteen quadrillion, nine hundred ninety trillion, seven hundred forty-two billion, four hundred ninety-seven million, seven hundred seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 1.8990742497707904 × 10¹⁶

Factors of 18990742497707904

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 15091516

Divisors of 18990742497707904

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 53 56 64 66 73 77 84 88 96 106 112 121 128 132 146 154 159 168 176 192 212 219 224 231 242 264 292 308 318 336 352 363 371 384 424 438 448 462 484 511 528 583 584 616 636 672 704 726 742 803 847 848 876 896 924 968 1022 1056 1113 1166 1168 1232 1272 1344 1408 1452 1484 1533 1606 1694 1696 1749 1752 1848 1936 2044 2112 2226 2332 2336 2409 2464 2541 2544 2688 2904 2968 3066 3212 3388 3392 3498 3504 3696 3869 3872 4081 4088 4224 4452 4664 4672 4818 4928 5082 5088 5621 5808 5936 6132 6413 6424 6776 6784 6996 7008 7392 7738 7744 8162 8176 8833 8904 9328 9344 9636 9856 10164 10176 11242 11607 11616 11872 12243 12264 12826 12848 13552 13992 14016 14784 15476 15488 16324 16352 16863 17666 17808 18656 19239 19272 20328 20352 22484 23214 23232 23744 24486 24528 25652 25696 26499 27083 27104 27984 28032 29568 30952 32648 32704 33726 35332 35616 37312 38478 38544 40656 42559 44891 44968 46428 46464 47488 48972 49056 51304 51392 52998 54166 54208 55968 61831 61904 65296 65408 67452 70664 71232 74624 76956 77088 81249 81312 85118 89782 89936 92856 97944 98112 102608 102784 105996 108332 108416 111936 123662 123808 127677 130592 134673 134904 141328 142464 153912 154176 162498 162624 170236 179564 179872 185493 185712 195888 196224 205216 211992 216664 223872 247324 247616 255354 261184 269346 269808 282656 297913 307824 308352 324996 325248 340472 359128 359744 370986 371424 391776 410432 423984 433328 468149 494648 495232 510708 522368 538692 539616 565312 595826 615648 649992 680944 718256 719488 741972 742848 783552 820864 847968 866656 893739 936298 989296 1021416 1077384 1079232 1130624 1191652 1231296 1299984 1361888 1404447 1436512 1483944 1485696 1567104 1695936 1733312 1787478 1872596 1978592 2042832 2154768 2158464 2383304 2462592 2599968 2723776 2808894 2873024 2967888 3277043 3391872 3466624 3574956 3745192 3957184 4085664 4309536 4766608 5199936 5447552 5617788 5746048 5935776 6554086 7149912 7490384 7914368 8171328 8619072 9533216 9831129 10399872 11235576 11871552 13108172 14299824 14980768 15091367 16342656 17238144 19066432 19662258 22471152 23743104 26216344 28599648 29961536 30182734 38132864 39324516 44942304 45274101 52432688 57199296 59923072 60365468 78649032 89884608 90548202 104865376 105639569 114398592 120730936 157298064 166005037 179769216 181096404 209730752 211279138 241461872 314596128 316918707 332010074 362192808 419461504 422558276 482923744 498015111 629192256 633837414 664020148 724385616 799842451 845116552 965847488 996030222 1101669791 1162035259 1258384512 1267674828 1328040296 1448771232 1599684902 1690233104 1826055407 1931694976 1992060444 2203339582 2324070518 2399527353 2535349656 2656080592 2897542464 3199369804 3305009373 3380466208 3486105777 3652110814 3984120888 4406679164 4648141036 4799054706 5070699312 5312161184 5478166221 5598897157 5795084928 6398739608 6610018746 6760932416 6972211554 7304221628 7711688537 7968241776 8798266961 8813358328 9296282072 9598109412 10141398624 10624322368 10956332442 11197794314 12118367701 12782387849 12797479216 13220037492 13521864832 13944423108 14608443256 15423377074 15936483552 16796691471 17596533922 17626716656 18592564144 19196218824 20282797248 21248644736 21912664884 22395588628 23135065611 24236735402 25564775698 25594958432 26394800883 26440074984 27888846216 29216886512 30846754148 31872967104 33593382942 35193067844 35253433312 36355103103 37185128288 38347163547 38392437648 40565594496 43825329768 44791177256 46270131222 48473470804 51129551396 51189916864 52789601766 52880149968 55777692432 58388498923 58433773024 61587868727 61693508296 63745934208 67186765884 70386135688 70506866624 72710206206 74370256576 76694327094 76784875296 84828573907 87650659536 89582354512 92540262444 96780936571 96946941608 102259102792 102379833728 105579203532 105760299936 111555384864 116776997846 116867546048 123175737454 123387016592 133302044711 134373531768 140772271376 141013733248 145420412412 148740513152 153388654188 153569750592 169657147814 175165496769 175301319072 179164709024 184763606181 185080524888 193561873142 193893883216 204518205584 211158407064 211520599872 223110769728 233553995692 233735092096 246351474908 246774033184 254485721721 266604089422 268747063536 281544542752 290342809713 290840824824 306777308376 307139501184 339314295628 350330993538 350602638144 358329418048 369527212362 370161049776 387123746284 387787766432 399906134133 408719492461 409036411168 422316814128 423041199744 446221539456 467107991384 492702949816 493548066368 508971443442 533208178844 537494127072 563089085504 580685619426 581681649648 613554616752 642273488153 677466555997 678628591256 700661987076 701205276288 716658836096 739054424724 740322099552 774247492568 775575532864 799812268266 817438984922 818072822336 844633628256 933114312977 934215982768 985405899632 987096132736 1017942886884 1066416357688 1074988254144 1126178171008 1161371238852 1163363299296 1226158477383 1227109233504 1284546976306 1354933111994 1357257182512 1401323974152 1478108849448 1480644199104 1548494985136 1551151065728 1599624536532 1634877969844 1636145644672 1689267256512 1866228625954 1868431965536 1926820464459 1970811799264 2032399667991 2035885773768 2132832715376 2149976508288 2322742477704 2326726598592 2452316954766 2454218467008 2569093952612 2709866223988 2714514365024 2799342938931 2802647948304 2956217698896 2961288398208 3096989970272 3199249073064 3269755939688 3378534513024 3732457251908 3736863931072 3853640928918 3941623598528 4064799335982 4071771547536 4265665430752 4495914417071 4645484955408 4653453197184 4904633909532 4908436934016 5138187905224 5419732447976 5429028730048 5598685877862 5605295896608 5912435397792 6193979940544 6398498146128 6539511879376 7065008369683 7464914503816 7473727862144 7707281857836 7883247197056 8129598671964 8143543095072 8531330861504 8991828834142 9290969910816 9809267819064 10276375810448 10839464895952 10858057460096 11197371755724 11210591793216 11824870795584 12387959881088 12796996292256 13079023758752 13487743251213 14130016739366 14929829007632 15414563715672 16259197343928 16287086190144 17062661723008 17983657668284 18581939821632 19618535638128 20552751620896 21195025109049 21678929791904 22394743511448 22421183586432 23649741591168 25593992584512 26158047517504 26975486502426 28260033478732 29859658015264 30829127431344 32518394687856 32574172380288 35967315336568 37163879643264 39237071276256 41105503241792 42390050218098 43357859583808 44789487022896 49455058587781 51187985169024 52316095035008 53950973004852 56520066957464 59719316030528 61658254862688 65036789375712 71934630673136 78474142552512 82211006483584 84780100436196 86715719167616 89578974045792 98910117175562 107901946009704 113040133914928 119438632061056 123316509725376 130073578751424 143869261346272 148365175763343 156948285105024 169560200872392 179157948091584 197820234351124 215803892019408 226080267829856 246633019450752 260147157502848 287738522692544 296730351526686 339120401744784 358315896183168 395640468702248 431607784038816 452160535659712 575477045385088 593460703053372 678240803489568 791280937404496 863215568077632 904321071319424 1186921406106744 1356481606979136 1582561874808992 1726431136155264 2373842812213488 2712963213958272 3165123749617984 4747685624426976 6330247499235968 9495371248853952 18990742497707904
• Sum of all divisors σ(n): 65447926012707840
• Sum of proper divisors (its aliquot sum) s(n): 46457183514999936
• 18990742497707904 is an abundant number, because the sum of its proper divisors (46457183514999936) is greater than itself. Its abundance is 27466441017292032

Bases of 18990742497707904

• Binary: 1000011011101111111101011001100100110001100011110000000₂
• Hexadecimal: 0x4377FACC98C780
• Base-36: 56ZNMNWOZUO

Squares and roots of 18990742497707904

• 18990742497707904 squared (18990742497707904²) is 360648300614249040162693704073216
• 18990742497707904 cubed (18990742497707904³) is 6848979009201154825357156472464896614548597899264
• The square root of 18990742497707904 is 137806902.9392501223
• The cube root of 18990742497707904 is 266796.8197011523

Scales and comparisons

• 18,990,742,497,707,904 seconds is equal to 603,846,869 years, 10 weeks, 4 days, 3 hours, 18 minutes, 24 seconds.
• To count from 1 to 18,990,742,497,707,904 would take you about one billion, eight hundred eleven million, five hundred forty thousand, six hundred 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 18990742497707904 cubic inches would be around 22233.1 feet tall.

Recreational maths with 18990742497707904

• 18990742497707904 backwards is 40970779424709981
• The number of decimal digits it has is: 17
• The sum of 18990742497707904's digits is 87
• More coming soon!