18918372348343440

Names of 18918372348343440

• Cardinal: 18918372348343440 can be written as Eighteen quadrillion, nine hundred eighteen trillion, three hundred seventy-two billion, three hundred forty-eight million, three hundred forty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.891837234834344 × 10¹⁶

Factors of 18918372348343440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 300616757

Divisors of 18918372348343440

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 35 36 40 42 45 48 56 60 63 70 72 80 84 90 105 112 120 126 140 144 168 180 210 240 252 280 315 336 360 420 504 560 630 720 840 1008 1260 1680 2520 5040 12487 24974 37461 49948 62435 74922 87409 99896 112383 124870 149844 174818 187305 199792 224766 249740 262227 299688 349636 374610 437045 449532 499480 524454 561915 599376 699272 749220 786681 874090 899064 998960 1048908 1123830 1311135 1398544 1498440 1573362 1748180 1798128 2097816 2247660 2622270 2996880 3146724 3496360 3933405 4195632 4495320 5244540 6293448 6992720 7866810 8990640 10489080 12586896 15733620 20978160 31467240 62934480 300604253 601208506 901812759 1202417012 1503021265 1803625518 2104229771 2404834024 2705438277 3006042530 3607251036 4208459542 4509063795 4809668048 5410876554 6012085060 6312689313 7214502072 8416919084 9018127590 10521148855 10821753108 12024170120 12625378626 13527191385 14429004144 16833838168 18036255180 18938067939 21042297710 21643506216 24048340240 25250757252 27054382770 31563446565 33667676336 36072510360 37876135878 42084595420 43287012432 50501514504 54108765540 63126893130 72145020720 75752271756 84169190840 94690339695 101003029008 108217531080 126253786260 151504543512 168338381680 189380679390 216435062160 252507572520 303009087024 378761358780 505015145040 757522717560 1515045435120 3753645307211 7507290614422 11260935921633 15014581228844 18768226536055 22521871843266 26275517150477 30029162457688 33782807764899 37536453072110 45043743686532 52551034300954 56304679608165 60058324915376 67565615529798 75072906144220 78826551451431 90087487373064 105102068601908 112609359216330 131377585752385 135131231059596 150145812288440 157653102902862 168914038824495 180174974746128 210204137203816 225218718432660 236479654354293 262755171504770 270262462119192 300291624576880 315306205805724 337828077648990 394132757257155 420408274407632 450437436865320 472959308708586 525510343009540 540524924238384 630612411611448 675656155297980 788265514514310 900874873730640 945918617417172 1051020686019080 1182398271771465 1261224823222896 1351312310595960 1576531029028620 1891837234834344 2102041372038160 2364796543542930 2702624621191920 3153062058057240 3783674469668688 4729593087085860 6306124116114480 9459186174171720 18918372348343440
• Sum of all divisors σ(n): 72616329952927488
• Sum of proper divisors (its aliquot sum) s(n): 53697957604584048
• 18918372348343440 is an abundant number, because the sum of its proper divisors (53697957604584048) is greater than itself. Its abundance is 34779585256240608

Bases of 18918372348343440

• Binary: 1000011001101100010100011001111100011010011010010010000₂
• Hexadecimal: 0x433628CF8D3490
• Base-36: 56A049YAYS0

Squares and roots of 18918372348343440

• 18918372348343440 squared (18918372348343440²) is 357904812310565684702512191033600
• 18918372348343440 cubed (18918372348343440³) is 6770976504555254666453633919737182565781379584000
• The square root of 18918372348343440 is 137544074.2029384557
• The cube root of 18918372348343440 is 266457.4841135165

Scales and comparisons

• 18,918,372,348,343,440 seconds is equal to 601,545,722 years, 16 weeks, 15 hours, 24 minutes.
• To count from 1 to 18,918,372,348,343,440 would take you about one billion, eight hundred four million, six hundred thirty-seven thousand, one hundred sixty-six 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 18918372348343440 cubic inches would be around 22204.8 feet tall.

Recreational maths with 18918372348343440

• 18918372348343440 backwards is 04434384327381981
• 18918372348343440 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18918372348343440's digits is 72
• More coming soon!