18990145724366812356

Names of 18990145724366812356

• Cardinal: 18990145724366812356 can be written as Eighteen quintillion, nine hundred ninety quadrillion, one hundred forty-five trillion, seven hundred twenty-four billion, three hundred sixty-six million, eight hundred twelve thousand, three hundred fifty-six.

Scientific notation

• Scientific notation: 1.8990145724366812356 × 10¹⁹

Factors of 18990145724366812356

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1945

Divisors of 18990145724366812356

• Number of divisors d(n): 189
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 73 146 219 292 438 657 876 1314 1867 2628 3734 5329 5601 7468 10658 11202 15987 16803 21316 22404 31974 33606 47961 63948 67212 95922 136291 191844 272582 389017 408873 545164 778034 817746 1167051 1226619 1556068 1635492 2334102 2453238 3485689 3501153 4668204 4906476 6971378 7002306 9949243 10457067 13942756 14004612 19898486 20914134 28398241 29847729 31371201 39796972 41828268 56796482 59695458 62742402 85194723 89543187 113592964 119390916 125484804 170389446 179086374 254455297 255584169 340778892 358172748 508910594 511168338 726294739 763365891 1017821188 1022336676 1452589478 1526731782 2073071593 2178884217 2290097673 2905178956 3053463564 4146143186 4357768434 4580195346 6219214779 6536652651 8292286372 8715536868 9160390692 12438429558 13073305302 18575236681 18657644337 24876859116 26146610604 37150473362 37315288674 53019515947 55725710043 74300946724 74630577348 106039031894 111451420086 151334226289 159058547841 167177130129 212078063788 222902840172 302668452578 318117095682 334354260258 454002678867 477175643523 605336905156 636234191364 668708520516 908005357734 954351287046 1355992277713 1362008036601 1816010715468 1908702574092 2711984555426 2724016073202 3870424664131 4067976833139 5423969110852 5448032146404 7740849328262 8135953666278 11611273992393 12203930499417 15481698656524 16271907332556 23222547984786 24407860998834 34833821977179 46445095969572 48815721997668 69667643954358 98987436273049 139335287908716 197974872546098 282541000481563 296962308819147 395949745092196 565082000963126 593924617638294 847623001444689 890886926457441 1130164001926252 1187849235276588 1695246002889378 1781773852914882 2542869004334067 3390492005778756 3563547705829764 5085738008668134 7226082847932577 10171476017336268 14452165695865154 21678248543797731 28904331391730308 43356497087595462 65034745631393193 86712994175190924 130069491262786386 260138982525572772 527504047899078121 1055008095798156242 1582512143697234363 2110016191596312484 3165024287394468726 4747536431091703089 6330048574788937452 9495072862183406178 18990145724366812356
• Sum of all divisors σ(n): 48695657157954484041
• Sum of proper divisors (its aliquot sum) s(n): 29705511433587671685
• 18990145724366812356 is an abundant number, because the sum of its proper divisors (29705511433587671685) is greater than itself. Its abundance is 10715365709220859329

Bases of 18990145724366812356

• Binary: 10000011110001010100011001110110000010101110010010111010011000100₂
• Hexadecimal: 0x1078A8CEC15C974C4
• Base-36: 40A0KU6879WP0

Squares and roots of 18990145724366812356

• 18990145724366812356 squared (18990145724366812356²) is 360625634632687124363742082792514270736
• 18990145724366812356 cubed (18990145724366812356³) is 6848333353616991644039584092879848091991697951676294014016
• 18990145724366812356 is a perfect square number. Its square root is 4357768434
• The cube root of 18990145724366812356 is 2667940.2502549555

Scales and comparisons

• 18,990,145,724,366,812,356 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,990,145,724,366,812,356 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 18990145724366812356 cubic inches would be around 222328.4 feet tall.

Recreational maths with 18990145724366812356

• 18990145724366812356 backwards is 65321866342754109981
• The number of decimal digits it has is: 20
• The sum of 18990145724366812356's digits is 90
• More coming soon!