821138835603125

Names of 821138835603125

• Cardinal: 821138835603125 can be written as Eight hundred twenty-one trillion, one hundred thirty-eight billion, eight hundred thirty-five million, six hundred three thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 8.21138835603125 × 10¹⁴

Factors of 821138835603125

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 480

Divisors of 821138835603125

• Number of divisors d(n): 216
• Complete list of divisors:
  1 5 13 25 41 65 125 169 205 325 421 533 625 845 1025 1625 1681 2105 2197 2665 3125 4225 5125 5473 6929 8125 8405 10525 10985 13325 17261 21125 21853 25625 27365 28561 34645 40625 42025 52625 54925 66625 71149 86305 90077 105625 109265 128125 136825 142805 173225 210125 224393 263125 274625 284089 333125 355745 371293 431525 450385 528125 546325 684125 707701 714025 866125 924937 1050625 1121965 1171001 1315625 1373125 1420445 1665625 1778725 1856465 2157625 2251925 2731625 2917109 3420625 3538505 3570125 3693157 4330625 4624685 5253125 5609825 5855005 6865625 7102225 8893625 9200113 9282325 10788125 11259625 12024181 13658125 14585545 15223013 17103125 17692525 17850625 18465785 21653125 23123425 28049125 29275025 35511125 37922417 44468125 46000565 46411625 48011041 53940625 56298125 60120905 68290625 72927725 76115065 88462625 89253125 92328925 115617125 119601469 140245625 146375125 156314353 177555625 189612085 222340625 230002825 232058125 240055205 281490625 300604525 364638625 380575325 442313125 461644625 492991421 578085625 598007345 624143533 701228125 731875625 781571765 887778125 948060425 1150014125 1160290625 1200276025 1503022625 1554819097 1823193125 1902876625 2211565625 2308223125 2464957105 2890428125 2990036725 3120717665 3659378125 3907858825 4740302125 5750070625 6001380125 6408888473 7515113125 7774095485 9115965625 9514383125 11541115625 12324785525 14950183625 15603588325 19539294125 20212648261 23701510625 28750353125 30006900625 32044442365 37575565625 38870477425 47571915625 61623927625 74750918125 78017941625 97696470625 101063241305 118507553125 150034503125 160222211825 194352387125 262764427393 308119638125 373754590625 390089708125 488482353125 505316206525 801111059125 971761935625 1313822136965 1540598190625 1950448540625 2526581032625 4005555295625 4858809678125 6569110684825 12632905163125 20027776478125 32845553424125 63164525815625 164227767120625 821138835603125
• Sum of all divisors σ(n): 1142375144264424
• Sum of proper divisors (its aliquot sum) s(n): 321236308661299
• 821138835603125 is a deficient number, because the sum of its proper divisors (321236308661299) is less than itself. Its deficiency is 499902526941826

Bases of 821138835603125

• Binary: 10111010101101001001001000100110110111111010110101₂
• Hexadecimal: 0x2EAD2489B7EB5
• Base-36: 832HZ1JHYT

Squares and roots of 821138835603125

• 821138835603125 squared (821138835603125²) is 674268987335655945082509765625
• 821138835603125 cubed (821138835603125³) is 553668451144098759692693539699324249267578125
• The square root of 821138835603125 is 28655520.1593536773
• The cube root of 821138835603125 is 93642.3270376823

Scales and comparisons

• 821,138,835,603,125 seconds is equal to 26,109,675 years, 1 week, 1 day, 8 hours, 52 minutes, 5 seconds.
• To count from 1 to 821,138,835,603,125 would take you about sixty-five million, two hundred seventy-four thousand, one hundred eighty-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 821138835603125 cubic inches would be around 7803.5 feet tall.

Recreational maths with 821138835603125

• 821138835603125 backwards is 521306538831128
• The number of decimal digits it has is: 15
• The sum of 821138835603125's digits is 56
• More coming soon!