21538399361280984

Names of 21538399361280984

• Cardinal: 21538399361280984 can be written as Twenty-one quadrillion, five hundred thirty-eight trillion, three hundred ninety-nine billion, three hundred sixty-one million, two hundred eighty thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.1538399361280984 × 10¹⁶

Factors of 21538399361280984

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6599428

Divisors of 21538399361280984

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 36 39 42 52 56 63 72 78 84 91 104 117 126 156 168 182 234 252 273 312 364 468 504 546 601 728 819 829 936 1092 1202 1638 1658 1803 2184 2404 2487 3276 3316 3606 4207 4808 4974 5409 5803 6552 6632 7212 7461 7813 8414 9948 10777 10818 11606 12621 14424 14922 15626 16828 17409 19896 21554 21636 23212 23439 25242 29844 31252 32331 33656 34818 37863 43108 43272 46424 46878 50484 52227 54691 59688 62504 64662 69636 70317 75439 75726 86216 93756 96993 100968 104454 109382 129324 139272 140634 150878 151452 164073 187512 193986 208908 218764 226317 258648 281268 301756 302904 328146 387972 417816 437528 452634 492219 498229 562536 603512 656292 678951 775944 905268 984438 996458 1312584 1357902 1494687 1810536 1968876 1992916 2715804 2989374 3487603 3937752 3985832 4484061 5431608 5978748 6476977 6597973 6975206 8968122 10462809 11957496 12953954 13195946 13950412 17936244 19430931 19793919 20925618 25907908 26391892 27900824 31388427 35872488 38861862 39587838 41851236 45338839 46185811 51815816 52783784 58292793 59381757 62776854 77723724 79175676 83702472 85773649 90677678 92371622 116585586 118763514 125553708 136016517 138557433 155447448 158351352 171547298 181355356 184743244 233171172 237527028 251107416 257320947 272033034 277114866 343094596 362710712 369486488 408049551 415672299 466342344 475054056 514641894 544066068 554229732 600415543 686189192 771962841 816099102 831344598 1029283788 1088132136 1108459464 1200831086 1543925682 1632198204 1662689196 1801246629 2058567576 2401662172 3087851364 3264396408 3325378392 3602493258 3965381773 4803324344 5403739887 5469719617 6175702728 7204986516 7930763546 10807479774 10939439234 11896145319 14409973032 15861527092 16409158851 21614959548 21878878468 23792290638 27757672411 31723054184 32818317702 35688435957 38288037319 43229919096 43757756936 47584581276 49227476553 51549963049 55515344822 65636635404 71106355021 71376871914 76576074638 83273017233 95169162552 98454953106 103099926098 111030689644 114864111957 131273270808 142212710042 142753743828 153152149276 154649889147 166546034466 196909906212 206199852196 213319065063 222061379288 229728223914 249819051699 284425420084 285507487656 306304298552 309299778294 333092068932 344592335871 360849741343 393819812424 412399704392 426638130126 459456447828 463949667441 497744485147 499638103398 568850840168 618599556588 639957195189 666184137864 689184671742 721699482686 853276260252 918912895656 927899334882 995488970294 999276206796 1082549224029 1237199113176 1279914390378 1378369343484 1443398965372 1493233455441 1706552520504 1855798669764 1990977940588 1998552413592 2165098448058 2559828780756 2756738686968 2886797930744 2986466910882 3247647672087 3287301489817 3711597339528 3981955881176 4330196896116 4479700366323 5119657561512 5972933821764 6495295344174 6574602979634 8660393792232 8959400732646 9861904469451 11945867643528 12990590688348 13149205959268 17918801465292 19723808938902 23011110428719 25981181376696 26298411918536 29585713408353 35837602930584 39447617877804 42734919367621 46022220857438 59171426816706 69033331286157 78895235755608 85469838735242 92044441714876 118342853633412 128204758102863 138066662572314 170939677470484 184088883429752 207099993858471 236685707266824 256409516205726 276133325144628 299144435573347 341879354940968 384614274308589 414199987716942 512819032411452 552266650289256 598288871146694 769228548617178 828399975433884 897433306720041 1025638064822904 1196577742293388 1538457097234356 1656799950867768 1794866613440082 2393155484586776 2692299920160123 3076914194468712 3589733226880164 5384599840320246 7179466453760328 10769199680640492 21538399361280984
• Sum of all divisors σ(n): 72000882164265600
• Sum of proper divisors (its aliquot sum) s(n): 50462482802984616
• 21538399361280984 is an abundant number, because the sum of its proper divisors (50462482802984616) is greater than itself. Its abundance is 28924083441703632

Bases of 21538399361280984

• Binary: 1001100100001010000111101100010111101011010101111011000₂
• Hexadecimal: 0x4C850F62F5ABD8
• Base-36: 5W2Q42IPQE0

Squares and roots of 21538399361280984

• 21538399361280984 squared (21538399361280984²) is 463902647046029099533181400008256
• 21538399361280984 cubed (21538399361280984³) is 9991720476832750916350461104738137867624335803904
• The square root of 21538399361280984 is 146759665.3078800939
• The cube root of 21538399361280984 is 278230.3327239903

Scales and comparisons

• 21,538,399,361,280,984 seconds is equal to 684,854,477 years, 2 weeks, 2 days, 10 hours, 56 minutes, 24 seconds.
• To count from 1 to 21,538,399,361,280,984 would take you about two billion, fifty-four million, five hundred sixty-three thousand, four hundred thirty-one 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 21538399361280984 cubic inches would be around 23185.9 feet tall.

Recreational maths with 21538399361280984

• 21538399361280984 backwards is 48908216399383512
• The number of decimal digits it has is: 17
• The sum of 21538399361280984's digits is 81
• More coming soon!