18919672381440

Names of 18919672381440

• Cardinal: 18919672381440 can be written as Eighteen trillion, nine hundred nineteen billion, six hundred seventy-two million, three hundred eighty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.891967238144 × 10¹³

Factors of 18919672381440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 26
• Sum of prime factors: 209

Divisors of 18919672381440

• Number of divisors d(n): 756
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 199 216 240 243 256 270 288 320 324 360 384 398 405 432 480 486 512 540 576 597 640 648 720 729 768 796 810 864 960 972 995 1024 1080 1152 1194 1215 1280 1296 1440 1458 1536 1592 1620 1728 1791 1920 1944 1990 2048 2160 2304 2388 2430 2560 2592 2880 2916 2985 3072 3184 3240 3456 3582 3645 3840 3888 3980 4096 4320 4608 4776 4860 5120 5184 5373 5760 5832 5970 6144 6368 6480 6912 7164 7290 7680 7776 7960 8192 8640 8955 9216 9552 9720 10240 10368 10746 11520 11664 11940 12288 12736 12960 13824 14328 14580 15360 15552 15920 16119 16384 17280 17910 18432 19104 19440 20480 20736 21492 23040 23328 23880 24576 25472 25920 26865 27648 28656 29160 30720 31104 31840 32238 32768 34560 35820 36864 38208 38880 39601 40960 41472 42984 46080 46656 47760 48357 49152 50944 51840 53730 55296 57312 58320 61440 62208 63680 64476 65536 69120 71640 73728 76416 77760 79202 80595 81920 82944 85968 92160 93312 95520 96714 98304 101888 103680 107460 110592 114624 116640 118803 122880 124416 127360 128952 131072 138240 143280 145071 147456 152832 155520 158404 161190 163840 165888 171936 184320 186624 191040 193428 196608 198005 203776 207360 214920 221184 229248 233280 237606 241785 245760 248832 254720 257904 276480 286560 290142 294912 305664 311040 316808 322380 327680 331776 343872 356409 368640 373248 382080 386856 393216 396010 407552 414720 429840 442368 458496 466560 475212 483570 491520 497664 509440 515808 552960 573120 580284 589824 594015 611328 622080 633616 644760 655360 663552 687744 712818 725355 737280 746496 764160 773712 792020 815104 829440 859680 884736 916992 933120 950424 967140 983040 995328 1018880 1031616 1069227 1105920 1146240 1160568 1179648 1188030 1222656 1244160 1267232 1289520 1327104 1375488 1425636 1450710 1474560 1492992 1528320 1547424 1584040 1630208 1658880 1719360 1769472 1782045 1833984 1866240 1900848 1934280 1966080 1990656 2037760 2063232 2138454 2211840 2292480 2321136 2376060 2445312 2488320 2534464 2579040 2654208 2750976 2851272 2901420 2949120 2985984 3056640 3094848 3168080 3207681 3260416 3317760 3438720 3538944 3564090 3667968 3732480 3801696 3868560 3981312 4075520 4126464 4276908 4423680 4584960 4642272 4752120 4890624 4976640 5068928 5158080 5308416 5346135 5501952 5702544 5802840 5898240 5971968 6113280 6189696 6336160 6415362 6520832 6635520 6877440 7128180 7335936 7464960 7603392 7737120 7962624 8151040 8252928 8553816 8847360 9169920 9284544 9504240 9623043 9781248 9953280 10137856 10316160 10616832 10692270 11003904 11405088 11605680 11943936 12226560 12379392 12672320 12830724 13041664 13271040 13754880 14256360 14671872 14929920 15206784 15474240 15925248 16038405 16302080 16505856 17107632 17694720 18339840 18569088 19008480 19246086 19562496 19906560 20275712 20632320 21384540 22007808 22810176 23211360 23887872 24453120 24758784 25344640 25661448 26083328 26542080 27509760 28512720 28869129 29343744 29859840 30413568 30948480 31850496 32076810 32604160 33011712 34215264 36679680 37138176 38016960 38492172 39124992 39813120 40551424 41264640 42769080 44015616 45620352 46422720 47775744 48115215 48906240 49517568 50689280 51322896 53084160 55019520 57025440 57738258 58687488 59719680 60827136 61896960 64153620 65208320 66023424 68430528 73359360 74276352 76033920 76984344 78249984 79626240 81102848 82529280 85538160 88031232 91240704 92845440 95551488 96230430 97812480 99035136 101378560 102645792 110039040 114050880 115476516 117374976 119439360 121654272 123793920 128307240 130416640 132046848 136861056 144345645 146718720 148552704 152067840 153968688 159252480 162205696 165058560 171076320 176062464 182481408 185690880 192460860 195624960 198070272 202757120 205291584 220078080 228101760 230953032 234749952 238878720 243308544 247587840 256614480 264093696 273722112 288691290 293437440 297105408 304135680 307937376 324411392 330117120 342152640 352124928 364962816 371381760 384921720 391249920 396140544 405514240 410583168 440156160 456203520 461906064 477757440 486617088 495175680 513228960 528187392 547444224 577382580 586874880 594210816 608271360 615874752 648822784 660234240 684305280 704249856 729925632 742763520 769843440 792281088 811028480 821166336 880312320 912407040 923812128 973234176 990351360 1026457920 1056374784 1094888448 1154765160 1173749760 1188421632 1216542720 1231749504 1297645568 1320468480 1368610560 1459851264 1485527040 1539686880 1584562176 1622056960 1642332672 1760624640 1824814080 1847624256 1946468352 1980702720 2052915840 2112749568 2189776896 2309530320 2376843264 2433085440 2463499008 2595291136 2640936960 2737221120 2919702528 2971054080 3079373760 3169124352 3244113920 3284665344 3521249280 3649628160 3695248512 3892936704 3961405440 4105831680 4379553792 4619060640 4753686528 4866170880 4926998016 5190582272 5281873920 5474442240 5839405056 5942108160 6158747520 6338248704 6488227840 6569330688 7299256320 7390497024 7785873408 7922810880 8211663360 8759107584 9238121280 9507373056 9732341760 9853996032 10563747840 10948884480 11678810112 11884216320 12317495040 12976455680 13138661376 14598512640 14780994048 15571746816 15845621760 16423326720 17518215168 18476242560 19014746112 19464683520 19707992064 21897768960 23357620224 23768432640 24634990080 25952911360 26277322752 29197025280 29561988096 31691243520 32846653440 35036430336 36952485120 38929367040 39415984128 43795537920 46715240448 47536865280 49269980160 52554645504 58394050560 59123976192 65693306880 70072860672 73904970240 77858734080 78831968256 87591075840 95073730560 98539960320 105109291008 116788101120 118247952384 131386613760 140145721344 147809940480 157663936512 175182151680 197079920640 210218582016 233576202240 236495904768 262773227520 295619880960 315327873024 350364303360 394159841280 420437164032 472991809536 525546455040 591239761920 630655746048 700728606720 788319682560 945983619072 1051092910080 1182479523840 1261311492096 1576639365120 1891967238144 2102185820160 2364959047680 3153278730240 3783934476288 4729918095360 6306557460480 9459836190720 18919672381440
• Sum of all divisors σ(n): 68423244134994
• Sum of proper divisors (its aliquot sum) s(n): 49503571753554
• 18919672381440 is an abundant number, because the sum of its proper divisors (49503571753554) is greater than itself. Its abundance is 30583899372114

Bases of 18919672381440

• Binary: 100010011010100010100010110100000000000000000₂
• Hexadecimal: 0x1135145A0000
• Base-36: 6PFKSG000

Squares and roots of 18919672381440

• 18919672381440 squared (18919672381440²) is 357954003021023520856473600
• 18919672381440 cubed (18919672381440³) is 6772372464782749031228851384152489984000
• The square root of 18919672381440 is 4349674.9742296837
• The cube root of 18919672381440 is 26646.3587450657

Scales and comparisons

• 18,919,672,381,440 seconds is equal to 601,587 years, 3 weeks, 14 hours, 24 minutes.
• To count from 1 to 18,919,672,381,440 would take you about one million, five hundred three thousand, nine hundred sixty-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 18919672381440 cubic inches would be around 2220.5 feet tall.

Recreational maths with 18919672381440

• 18919672381440 backwards is 04418327691981
• The number of decimal digits it has is: 14
• The sum of 18919672381440's digits is 63
• More coming soon!