18538531554816

Names of 18538531554816

• Cardinal: 18538531554816 can be written as Eighteen trillion, five hundred thirty-eight billion, five hundred thirty-one million, five hundred fifty-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.8538531554816 × 10¹³

Factors of 18538531554816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 13045

Divisors of 18538531554816

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 32 36 39 42 48 52 54 56 63 64 72 78 81 84 91 96 104 108 112 117 126 127 128 144 156 162 168 182 189 192 208 216 224 234 243 252 254 256 273 288 312 324 336 351 364 378 381 384 416 432 448 468 486 504 508 512 546 567 576 624 648 672 702 728 756 762 768 819 832 864 889 896 936 972 1008 1016 1053 1092 1134 1143 1152 1248 1296 1344 1404 1456 1512 1524 1536 1638 1651 1664 1701 1728 1778 1792 1872 1944 2016 2032 2106 2184 2268 2286 2304 2457 2496 2592 2667 2688 2808 2912 3024 3048 3159 3276 3302 3328 3402 3429 3456 3556 3584 3744 3888 4032 4064 4212 4368 4536 4572 4608 4914 4953 4992 5184 5334 5376 5616 5824 6048 6096 6318 6552 6604 6656 6804 6858 6912 7112 7371 7488 7776 8001 8064 8128 8424 8736 9072 9144 9828 9906 9984 10287 10368 10668 10752 11232 11557 11648 12096 12192 12636 12893 13104 13208 13608 13716 13824 14224 14742 14859 14976 15552 16002 16128 16256 16848 17472 18144 18288 19656 19812 19968 20574 20736 21336 22113 22464 23114 23296 24003 24192 24384 25272 25786 26208 26416 27216 27432 28448 29484 29718 29952 30861 31104 32004 32256 32512 33696 34671 34944 36288 36576 38679 39312 39624 41148 41472 42672 44226 44577 44928 46228 46592 48006 48384 48768 50544 51572 52416 52832 54432 54864 56896 58968 59436 59904 61722 62208 64008 65024 67392 69342 69888 72009 72576 73152 77358 78624 79248 82296 85344 88452 89154 89856 90251 92456 96012 96768 97536 101088 103144 104013 104832 105664 108864 109728 113792 116037 117936 118872 123444 124416 128016 133731 134784 138684 139776 144018 145152 146304 154716 157248 158496 164592 167609 170688 176904 178308 179712 180502 184912 192024 195072 202176 206288 208026 209664 211328 216027 217728 219456 227584 232074 235872 237744 246888 256032 267462 269568 270753 277368 288036 290304 292608 309432 312039 314496 316992 329184 335218 341376 348111 353808 356616 361004 369824 384048 401193 404352 412576 416052 419328 422656 432054 435456 438912 455168 464148 471744 475488 493776 502827 512064 534924 539136 541506 554736 576072 585216 618864 624078 628992 633984 658368 670436 682752 696222 707616 713232 722008 739648 768096 802386 808704 812259 825152 832104 845312 864108 870912 877824 928296 936117 943488 950976 987552 1005654 1024128 1044333 1069848 1083012 1109472 1152144 1173263 1237728 1248156 1257984 1267968 1316736 1340872 1365504 1392444 1415232 1426464 1444016 1479296 1508481 1536192 1604772 1617408 1624518 1637411 1650304 1664208 1728216 1755648 1856592 1872234 1886976 1901952 1975104 2011308 2048256 2088666 2139696 2166024 2218944 2304288 2346526 2436777 2475456 2496312 2535936 2633472 2681744 2784888 2808351 2830464 2852928 2888032 2958592 3016962 3072384 3132999 3209544 3249036 3274822 3300608 3328416 3456432 3519789 3713184 3744468 3773952 3803904 3950208 4022616 4096512 4177332 4279392 4332048 4437888 4525443 4608576 4693052 4873554 4912233 4950912 4992624 5266944 5363488 5569776 5616702 5660928 5705856 5776064 5917184 6033924 6144768 6265998 6419088 6498072 6549644 6601216 6656832 6912864 7039578 7310331 7426368 7488936 7607808 7900416 8045232 8354664 8558784 8664096 8875776 9050886 9217152 9386104 9747108 9824466 9901824 9985248 10559367 10726976 11139552 11233404 11321856 11411712 11461877 11552128 12067848 12289536 12531996 12838176 12996144 13099288 13313664 13576329 13825728 14079156 14620662 14736699 14852736 14977872 15800832 16090464 16709328 17117568 17328192 17751552 18101772 18434304 18772208 19494216 19648932 19803648 19970496 21118734 21286343 21453952 21930993 22279104 22466808 22823424 22923754 23104256 24135696 25063992 25676352 25992288 26198576 26627328 27152658 27651456 28158312 29241324 29473398 29705472 29955744 31678101 32180928 33418656 34235136 34385631 34656384 36203544 36868608 37544416 38988432 39297864 39940992 40728987 42237468 42572686 42907904 43861986 44210097 44558208 44933616 45847508 46208512 48271392 50127984 51352704 51984576 52397152 53254656 54305316 55302912 56316624 58482648 58946796 59410944 59911488 63356202 63859029 64361856 66837312 68470272 68771262 69312768 72407088 75088832 77976864 78595728 79881984 81457974 84474936 85145372 85815808 87723972 88420194 89116416 89867232 91695016 95034303 96542784 100255968 102705408 103156893 103969152 104794304 108610632 110605824 112633248 116965296 117893592 119822976 126712404 127718058 128723712 132630291 133674624 137542524 138625536 144814176 149004401 150177664 155953728 157191456 159763968 162915948 168949872 170290744 175447944 176840388 178232832 179734464 183390032 190068606 191577087 193085568 200511936 205410816 206313786 207938304 209588608 217221264 225266496 233930592 235787184 239645952 253424808 255436116 257447424 265260582 267349248 275085048 285102909 289628352 298008802 300355328 309470679 311907456 314382912 325831896 337899744 340581488 350895888 353680776 359468928 366780064 380137212 383154174 386171136 397890873 401023872 412627572 415876608 419177216 434442528 447013203 450532992 467861184 471574368 479291904 506849616 510872232 530521164 534698496 550170096 570205818 574731261 579256704 596017604 600710656 618941358 623814912 628765824 651663792 675799488 681162976 701791776 707361552 718937856 733560128 760274424 766308348 772342272 795781746 802047744 825255144 838354432 868885056 894026406 901065984 928412037 935722368 943148736 1013699232 1021744464 1061042328 1100340192 1140411636 1149462522 1158513408 1192035208 1237882716 1247629824 1257531648 1303327584 1341039609 1351598976 1362325952 1403583552 1414723104 1437875712 1467120256 1520548848 1532616696 1591563492 1604095488 1650510288 1724193783 1737770112 1788052812 1802131968 1856824074 1871444736 1886297472 2027398464 2043488928 2122084656 2200680384 2280823272 2298925044 2317026816 2384070416 2475765432 2515063296 2606655168 2682079218 2703197952 2724651904 2785236111 2807167104 2829446208 2934240512 3041097696 3065233392 3183126984 3301020576 3448387566 3475540224 3576105624 3713648148 3742889472 3772594944 4023118827 4054796928 4086977856 4244169312 4401360768 4561646544 4597850088 4768140832 4951530864 5172581349 5213310336 5364158436 5406395904 5449303808 5570472222 5614334208 5658892416 5868481024 6082195392 6130466784 6366253968 6602041152 6896775132 6951080448 7152211248 7427296296 7545189888 8046237654 8109593856 8173955712 8488338624 8802721536 9123293088 9195700176 9536281664 9903061728 10345162698 10426620672 10728316872 10898607616 11140944444 11228668416 11317784832 12069356481 12164390784 12260933568 12732507936 13204082304 13793550264 14304422496 14854592592 16092475308 16219187712 16347911424 16976677248 17605443072 18246586176 18391400352 19072563328 19806123456 20690325396 20853241344 21456633744 22281888888 22635569664 24138712962 24328781568 24521867136 25465015872 26408164608 27587100528 28608844992 29709185184 32184950616 32695822848 33953354496 36208069443 36493172352 36782800704 38145126656 39612246912 41380650792 42913267488 44563777776 48277425924 48657563136 49043734272 50930031744 52816329216 55174201056 57217689984 59418370368 64369901232 67906708992 72416138886 72986344704 73565601408 76290253312 79224493824 82761301584 85826534976 89127555552 96554851848 98087468544 101860063488 110348402112 114435379968 118836740736 128739802464 144832277772 145972689408 147131202816 158448987648 165522603168 171653069952 178255111104 193109703696 203720126976 220696804224 228870759936 237673481472 257479604928 289664555544 294262405632 331045206336 343306139904 356510222208 386219407392 441393608448 475346962944 514959209856 579329111088 662090412672 686612279808 713020444416 772438814784 882787216896 1029918419712 1158658222176 1324180825344 1426040888832 1544877629568 2059836839424 2317316444352 2648361650688 3089755259136 4634632888704 6179510518272 9269265777408 18538531554816
• Sum of all divisors σ(n): 68832362446848
• Sum of proper divisors (its aliquot sum) s(n): 50293830892032
• 18538531554816 is an abundant number, because the sum of its proper divisors (50293830892032) is greater than itself. Its abundance is 31755299337216

Bases of 18538531554816

• Binary: 100001101110001010110100101101000011000000000₂
• Hexadecimal: 0x10DC56968600
• Base-36: 6KKHF1C00

Squares and roots of 18538531554816

• 18538531554816 squared (18538531554816²) is 343677152208908538412793856
• 18538531554816 cubed (18538531554816³) is 6371269730894152295468069344098172010496
• The square root of 18538531554816 is 4305639.5059057139
• The cube root of 18538531554816 is 26466.2113827339

Scales and comparisons

• 18,538,531,554,816 seconds is equal to 589,467 years, 49 weeks, 6 days, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 18,538,531,554,816 would take you about one million, four hundred seventy-three thousand, six hundred sixty-nine 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 18538531554816 cubic inches would be around 2205.5 feet tall.

Recreational maths with 18538531554816

• 18538531554816 backwards is 61845513583581
• 18538531554816 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18538531554816's digits is 63
• More coming soon!