18439724703444803136

Names of 18439724703444803136

• Cardinal: 18439724703444803136 can be written as Eighteen quintillion, four hundred thirty-nine quadrillion, seven hundred twenty-four trillion, seven hundred three billion, four hundred forty-four million, eight hundred three thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 1.8439724703444803136 × 10¹⁹

Factors of 18439724703444803136

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 8520151

Divisors of 18439724703444803136

• Number of divisors d(n): 315
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 64 72 81 84 96 98 108 112 126 144 147 162 168 189 192 196 216 224 252 288 294 324 336 378 392 432 441 448 504 567 576 588 648 672 756 784 864 882 1008 1134 1176 1296 1323 1344 1512 1568 1728 1764 2016 2268 2352 2592 2646 3024 3136 3528 3969 4032 4536 4704 5184 5292 6048 7056 7938 9072 9408 10584 12096 14112 15876 18144 21168 28224 31752 36288 42336 63504 84672 127008 254016 8520139 17040278 25560417 34080556 51120834 59640973 68161112 76681251 102241668 119281946 136322224 153362502 178922919 204483336 230043753 238563892 272644448 306725004 357845838 408966672 417486811 460087506 477127784 536768757 545288896 613450008 690131259 715691676 817933344 834973622 920175012 954255568 1073537514 1226900016 1252460433 1380262518 1431383352 1610306271 1635866688 1669947244 1840350024 1908511136 2147075028 2453800032 2504920866 2760525036 2862766704 3220612542 3339894488 3680700048 3757381299 3817022272 4294150056 4830918813 4907600064 5009841732 5521050072 5725533408 6441225084 6679788976 7361400096 7514762598 8588300112 9661837626 10019683464 11042100144 11272143897 11451066816 12882450168 13359577952 14722800192 15029525196 17176600224 19323675252 20039366928 22084200288 22544287794 25764900336 26719155904 30059050392 33816431691 34353200448 38647350504 40078733856 44168400576 45088575588 51529800672 60118100784 67632863382 77294701008 80157467712 90177151176 103059601344 120236201568 135265726764 154589402016 180354302352 240472403136 270531453528 309178804032 360708604704 541062907056 721417209408 1082125814112 2164251628224 72592768579321 145185537158642 217778305737963 290371074317284 435556611475926 508149380055247 580742148634568 653334917213889 871113222951852 1016298760110494 1161484297269136 1306669834427778 1524448140165741 1742226445903704 1960004751641667 2032597520220988 2322968594538272 2613339668855556 3048896280331482 3484452891807408 3557045660386729 3920009503283334 4065195040441976 4573344420497223 4645937189076544 5226679337711112 5880014254925001 6097792560662964 6968905783614816 7114091320773458 7840019006566668 8130390080883952 9146688840994446 10453358675422224 10671136981160187 11760028509850002 12195585121325928 13720033261491669 13937811567229632 14228182641546916 15680038013133336 16260780161767904 18293377681988892 20906717350844448 21342273962320374 23520057019700004 24391170242651856 27440066522983338 28456365283093832 31360076026266672 32013410943480561 32521560323535808 36586755363977784 41160099784475007 41813434701688896 42684547924640748 47040114039400008 48782340485303712 54880133045966676 56912730566187664 62720152052533344 64026821886961122 73173510727955568 82320199568950014 85369095849281496 94080228078800016 96040232830441683 97564680970607424 109760266091933352 113825461132375328 125440304105066688 128053643773922244 146347021455911136 164640399137900028 170738191698562992 188160456157600032 192080465660883366 219520532183866704 227650922264750656 256107287547844488 288120698491325049 292694042911822272 329280798275800056 341476383397125984 376320912315200064 384160931321766732 439041064367733408 512214575095688976 576241396982650098 658561596551600112 682952766794251968 768321862643533464 878082128735466816 1024429150191377952 1152482793965300196 1317123193103200224 1536643725287066928 2048858300382755904 2304965587930600392 2634246386206400448 3073287450574133856 4609931175861200784 6146574901148267712 9219862351722401568 18439724703444803136
• Sum of all divisors σ(n): 63585392724182779659
• Sum of proper divisors (its aliquot sum) s(n): 45145668020737976523
• 18439724703444803136 is an abundant number, because the sum of its proper divisors (45145668020737976523) is greater than itself. Its abundance is 26705943317293173387

Bases of 18439724703444803136

• Binary: 1111111111100111000011111110101110000000110100101001111001000000₂
• Hexadecimal: 0xFFE70FEB80D29E40
• Base-36: 3W3GWVBZJXG00

Squares and roots of 18439724703444803136

• 18439724703444803136 squared (18439724703444803136²) is 340023447138832532958939987045795434496
• 18439724703444803136 cubed (18439724703444803136³) is 6269938757956388424183910301861813931234278739566303379456
• 18439724703444803136 is a perfect square number. Its square root is 4294150056
• The cube root of 18439724703444803136 is 2641910.7639080371

Scales and comparisons

• 18,439,724,703,444,803,136 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,439,724,703,444,803,136 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 18439724703444803136 cubic inches would be around 220159.2 feet tall.

Recreational maths with 18439724703444803136

• 18439724703444803136 backwards is 63130844430742793481
• 18439724703444803136 is a Harshad number.
• The number of decimal digits it has is: 20
• The sum of 18439724703444803136's digits is 81
• More coming soon!