21017754921730842

Names of 21017754921730842

• Cardinal: 21017754921730842 can be written as Twenty-one quadrillion, seventeen trillion, seven hundred fifty-four billion, nine hundred twenty-one million, seven hundred thirty thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 2.1017754921730842 × 10¹⁶

Factors of 21017754921730842

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4195

Divisors of 21017754921730842

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 6 9 11 18 19 22 31 33 38 57 62 66 93 99 114 121 171 186 198 209 242 279 341 342 363 418 558 589 627 682 726 961 1023 1089 1178 1254 1767 1881 1922 2046 2178 2299 2883 3069 3534 3751 3762 4129 4598 5301 5766 6138 6479 6897 7502 8258 8649 10571 10602 11253 12387 12958 13794 17298 18259 19437 20691 21142 22506 24774 29791 31713 33759 36518 37161 38874 41382 45419 54777 58311 59582 63426 67518 71269 74322 78451 89373 90838 95139 109554 116281 116622 127999 136257 142538 156902 164331 178746 190278 200849 213807 232562 235353 255998 268119 272514 327701 328662 348843 383997 401698 408771 427614 470706 499609 536238 566029 602547 641421 655402 697686 706059 767994 817542 862961 983103 999218 1046529 1132058 1151991 1205094 1282842 1407989 1412118 1498827 1698087 1725922 1807641 1966206 2093058 2209339 2303982 2431981 2588883 2815978 2949309 2997654 3396174 3604711 3615282 3967969 4223967 4418678 4496481 4863962 5094261 5177766 5898618 6226319 6628017 7209422 7295943 7766649 7935938 8447934 8992962 9492571 10188522 10814133 11903907 12452638 12671901 13256034 14591886 15487879 15533298 17048641 18678957 18985142 19884051 21628266 21887829 23807814 25343802 26751791 28477713 30975758 32442399 34097282 35711721 37357914 39768102 43647659 43775658 46463637 51145923 53503582 56036871 56955426 64884798 68489509 71423442 75391411 80255373 85433139 87295318 92927274 102291846 112073742 123007039 130942977 136979018 139390911 150782822 153437769 160510746 170866278 187535051 205468527 226174233 240766119 246014078 261885954 278781822 294269701 306875538 323924179 369021117 375070102 392828931 410937054 452348466 480124249 481532238 528507871 562605153 588539402 616405581 647848358 678522699 738042234 785657862 829305521 882809103 960248498 971772537 1057015742 1107063351 1125210306 1232811162 1353077429 1357045398 1440372747 1585523613 1658611042 1687815459 1765618206 1943545074 2062885561 2214126702 2337133741 2487916563 2648427309 2706154858 2880745494 2915317611 3171047226 3375630918 3563165969 4059232287 4125771122 4321118241 4674267482 4756570839 4975833126 5296854618 5813586581 5830635222 6188656683 7011401223 7126331938 7463749689 8118464574 8642236482 9122360731 9513141678 10041649549 10689497907 11627173162 12177696861 12377313366 14022802446 14883851719 14927499378 16383744001 17440759743 18244721462 18565970049 20083299098 21034203669 21378995814 24355393722 25708471151 27367082193 29767703438 30124948647 32068493721 32767488002 34881519486 37131940098 39194825659 42068407338 44651555157 49151232003 51416942302 52322279229 54734164386 60249897294 63949452391 64136987442 77125413453 78389651318 82101246579 89303110314 90374845941 98302464006 104644558458 110458145039 117584476977 127898904782 133954665471 147453696009 154250826906 164202493158 180221184011 180749691882 191848357173 220916290078 231376240359 235168953954 267909330942 282793182661 294907392018 311291136019 331374435117 352753430931 360442368022 383696714346 462752480718 507896064031 540663552033 565586365322 575545071519 622582272038 662748870234 705506861862 848379547983 933873408057 994123305351 1015792128062 1081327104066 1151090143038 1215039595429 1523688192093 1621990656099 1696759095966 1867746816114 1982433024121 1988246610702 2430079190858 2545138643949 2801620224171 3047376384186 3243981312198 3424202496209 3645118786287 3964866048242 4571064576279 5090277287898 5586856704341 5603240448342 5947299072363 6848404992418 7290237572574 9142129152558 9650025216589 10272607488627 10935356358861 11173713408682 11894598144726 16760570113023 17841897217089 19300050433178 20545214977254 21870712717722 28950075649767 30817822465881 33521140226046 35683794434178 37666227458299 50281710339069 57900151299534 61455423747751 61635644931762 75332454916598 86850226949301 100563420678138 106150277382479 112998682374897 122910847495502 173700453898602 184366271243253 212300554764958 225997364749794 318450832147437 338996047124691 368732542486506 553098813729759 636901664294874 677992094249382 955352496442311 1106197627459518 1167653051207269 1910704992884622 2335306102414538 3502959153621807 7005918307243614 10508877460865421 21017754921730842
• Sum of all divisors σ(n): 54458572605615360
• Sum of proper divisors (its aliquot sum) s(n): 33440817683884518
• 21017754921730842 is an abundant number, because the sum of its proper divisors (33440817683884518) is greater than itself. Its abundance is 12423062762153676

Bases of 21017754921730842

• Binary: 1001010101010111000100101101000000101100000001100011010₂
• Hexadecimal: 0x4AAB896816031A
• Base-36: 5QY67BE1PUI

Squares and roots of 21017754921730842

• 21017754921730842 squared (21017754921730842²) is 441746021949941032325481094028964
• 21017754921730842 cubed (21017754921730842³) is 9284509626993393693992639141666541081254160107688
• The square root of 21017754921730842 is 144975014.8188674681
• The cube root of 21017754921730842 is 275970.1488830061

Scales and comparisons

• 21,017,754,921,730,842 seconds is equal to 668,299,594 years, 16 weeks, 6 days, 20 hours, 20 minutes, 42 seconds.
• To count from 1 to 21,017,754,921,730,842 would take you about two billion, four million, eight hundred ninety-eight thousand, seven hundred eighty-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 21017754921730842 cubic inches would be around 22997.5 feet tall.

Recreational maths with 21017754921730842

• 21017754921730842 backwards is 24803712945771012
• The number of decimal digits it has is: 17
• The sum of 21017754921730842's digits is 63
• More coming soon!