81676920257083776

Names of 81676920257083776

• Cardinal: 81676920257083776 can be written as Eighty-one quadrillion, six hundred seventy-six trillion, nine hundred twenty billion, two hundred fifty-seven million, eighty-three thousand, seven hundred seventy-six.

Scientific notation

• Scientific notation: 8.1676920257083776 × 10¹⁶

Factors of 81676920257083776

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 134044

Divisors of 81676920257083776

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 12 16 17 24 32 34 41 48 51 64 68 82 96 102 123 128 136 164 192 204 246 272 289 328 384 408 492 544 578 656 697 816 867 984 1088 1156 1312 1394 1632 1734 1968 2091 2176 2312 2624 2788 3264 3468 3936 4182 4624 5248 5576 6528 6936 7872 8364 9248 11152 11849 13872 15744 16728 18496 22304 23698 27744 33456 35547 36992 44608 47396 55488 66912 71094 89216 94792 110976 133824 133981 142188 189584 267648 267962 284376 379168 401943 535924 568752 758336 803886 1071848 1137504 1516672 1607772 2143696 2275008 2277677 3215544 4287392 4550016 4555354 5493221 6431088 6833031 8574784 9110708 10986442 12862176 13666062 16479663 17149568 18221416 21972884 25724352 27332124 32959326 36442832 38720509 43945768 51448704 54664248 65918652 72885664 77441018 87891536 93384757 109328496 116161527 131837304 145771328 154882036 175783072 186769514 218656992 232323054 263674608 280154271 291542656 309764072 351566144 373539028 437313984 464646108 527349216 560308542 619528144 703132288 747078056 874627968 929292216 1054698432 1120617084 1239056288 1494156112 1587540869 1858584432 2109396864 2241234168 2478112576 2988312224 3175081738 3717168864 4482468336 4762622607 4956225152 5976624448 6350163476 7434337728 8964936672 9525245214 11953248896 12700326952 14868675456 17929873344 17950908361 19050490428 25400653904 35859746688 35901816722 38100980856 50801307808 53852725083 71803633444 76201961712 101602615616 107705450166 143607266888 152403923424 203205231232 215410900332 287214533776 304807846848 305165442137 430821800664 574429067552 609615693696 610330884274 735987242801 861643601328 915496326411 1148858135104 1220661768548 1471974485602 1723287202656 1830992652822 2207961728403 2297716270208 2441323537096 2943948971204 3446574405312 3661985305644 4415923456806 4882647074192 5187812516329 5887897942408 6893148810624 7323970611288 8831846913612 9765294148384 10375625032658 11775795884816 12511783127617 14647941222576 15563437548987 17663693827224 19530588296768 20751250065316 23551591769632 25023566255234 29295882445152 31126875097974 35327387654448 37535349382851 39061176593536 41502500130632 47103183539264 50047132510468 58591764890304 62253750195948 70654775308896 75070698765702 83005000261264 94206367078528 100094265020936 117183529780608 124507500391896 141309550617792 150141397531404 166010000522528 200188530041872 212700313169489 249015000783792 282619101235584 300282795062808 332020001045056 400377060083744 425400626338978 498030001567584 600565590125616 638100939508467 664040002090112 800754120167488 850801252677956 996060003135168 1201131180251232 1276201879016934 1601508240334976 1701602505355912 1992120006270336 2402262360502464 2552403758033868 3403205010711824 4804524721004928 5104807516067736 6806410021423648 10209615032135472 13612820042847296 20419230064270944 27225640085694592 40838460128541888 81676920257083776
• Sum of all divisors σ(n): 236089954770054840
• Sum of proper divisors (its aliquot sum) s(n): 154413034512971064
• 81676920257083776 is an abundant number, because the sum of its proper divisors (154413034512971064) is greater than itself. Its abundance is 72736114255887288

Bases of 81676920257083776

• Binary: 100100010001011001011100111101010010001010111100110000000₂
• Hexadecimal: 0x1222CB9EA457980
• Base-36: MC81V65H9XC

Squares and roots of 81676920257083776

• 81676920257083776 squared (81676920257083776²) is 6671119302682022077391907882418176
• 81676920257083776 cubed (81676920257083776³) is 544876479310651843133353831730914677954148697112576
• The square root of 81676920257083776 is 285791742.8077371447
• The cube root of 81676920257083776 is 433876.8227968971

Scales and comparisons

• 81,676,920,257,083,776 seconds is equal to 2,597,073,420 years, 45 weeks, 2 days, 17 hours, 29 minutes, 36 seconds.
• To count from 1 to 81,676,920,257,083,776 would take you about seven billion, seven hundred ninety-one million, two hundred twenty thousand, two hundred sixty-two 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 81676920257083776 cubic inches would be around 36156.4 feet tall.

Recreational maths with 81676920257083776

• 81676920257083776 backwards is 67738075202967618
• The number of decimal digits it has is: 17
• The sum of 81676920257083776's digits is 84
• More coming soon!