21355342887840

Names of 21355342887840

• Cardinal: 21355342887840 can be written as Twenty-one trillion, three hundred fifty-five billion, three hundred forty-two million, eight hundred eighty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.135534288784 × 10¹³

Factors of 21355342887840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 5917

Divisors of 21355342887840

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 31 32 39 40 48 52 60 62 65 78 80 93 96 104 120 124 130 131 151 155 156 160 186 195 208 240 248 260 262 302 310 312 372 390 393 403 416 453 465 480 496 520 524 604 620 624 655 744 755 780 786 806 906 930 992 1040 1048 1208 1209 1240 1248 1310 1488 1510 1560 1572 1612 1703 1812 1860 1963 1965 2015 2080 2096 2265 2416 2418 2480 2620 2976 3020 3120 3144 3224 3406 3624 3720 3926 3930 4030 4061 4192 4530 4681 4832 4836 4960 5109 5240 5581 5889 6040 6045 6240 6288 6448 6812 7248 7440 7852 7860 8060 8122 8515 9060 9362 9672 9815 10218 10480 11162 11778 12080 12090 12183 12576 12896 13624 14043 14496 14880 15704 15720 16120 16244 16743 17030 18120 18724 19344 19630 19781 20305 20436 20960 22324 23405 23556 24160 24180 24366 25545 27248 27905 28086 29445 31408 31440 32240 32488 33486 34060 36240 37448 38688 39260 39562 40610 40872 44648 46810 47112 48360 48732 51090 52793 54496 55810 56172 58890 59343 60853 60915 62816 62880 64480 64976 66972 68120 70215 72480 72553 74896 78520 79124 81220 81744 83715 89296 93620 94224 96720 97464 98905 102180 105586 111620 112344 117780 118686 121706 121830 129952 133944 136240 140430 145106 149792 157040 158248 158379 162440 163488 167430 173011 178592 182559 187240 188448 193440 194928 197810 204360 211172 217659 223240 224688 235560 237372 243412 243660 257153 263965 267888 272480 280860 290212 296715 304265 314080 316496 316758 324880 334860 346022 362765 365118 374480 389856 395620 408720 422344 435318 446480 449376 471120 474744 486824 487320 514306 519033 527930 535776 561720 580424 593430 608530 613211 632992 633516 649760 669720 692044 725530 730236 731111 748960 771459 791240 791895 817440 842731 844688 865055 870636 892960 912795 942240 949488 973648 974640 1028612 1038066 1055860 1088295 1123440 1160848 1186860 1217060 1226422 1267032 1285765 1339440 1384088 1451060 1460472 1462222 1542918 1582480 1583790 1685462 1689376 1730110 1741272 1825590 1839633 1898976 1947296 1949280 2057224 2076132 2111720 2176590 2193333 2246880 2249143 2321696 2373720 2434120 2452844 2528193 2534064 2571530 2595165 2678880 2768176 2902120 2920944 2924444 3066055 3085836 3164960 3167580 3370924 3460220 3482544 3651180 3655555 3679266 3857295 4114448 4152264 4213655 4223440 4353180 4386666 4498286 4747440 4868240 4905688 5056386 5068128 5143060 5190330 5536352 5804240 5841888 5848888 6132110 6171672 6335160 6741848 6747429 6920440 6965088 7302360 7311110 7358532 7714590 7971743 8228896 8304528 8427310 8446880 8706360 8773332 8996572 9198165 9494880 9504443 9736480 9811376 10112772 10286120 10380660 10955503 10966665 11245715 11608480 11697776 12264220 12343344 12640965 12670320 13483696 13494858 13840880 14604720 14622220 14717064 15429180 15943486 16609056 16854620 17412720 17546664 17993144 18396330 19008886 19622752 20225544 20572240 20761320 21911006 21933330 22491430 22664441 23395552 23915229 24528440 24686688 25281930 25340640 26124661 26967392 26989716 27681760 28513329 29209440 29244440 29434128 30858360 31886972 32866509 33709240 33737145 34825440 35093328 35986288 36792660 38017772 39858715 40451088 41144480 41522640 43822012 43866660 44982860 45328882 47522215 47830458 49056880 50563860 52249322 53979432 54777515 57026658 58488880 58868256 61716720 63773944 65733018 67418480 67474290 67993323 70186656 71972576 73585320 76035544 78373983 79717430 80902176 83045280 87644024 87733320 89965720 90657764 95044430 95660916 98113760 101127720 104498644 107958864 109555030 110397761 113322205 114053316 116977760 119576145 123433440 127547888 130623305 131466036 134836960 134948580 135986646 142566645 147170640 152071088 156747966 159434860 164332545 175288048 175466640 179931440 181315528 190088860 191321832 202255440 208997288 215917728 219110060 220795522 226644410 228106632 239152290 255095776 261246610 262932072 269897160 271973292 285133290 294341280 294637733 304142176 313495932 318869720 328665090 331193283 339620593 339966615 350576096 350933280 359862880 362631056 380177720 382643664 391869915 404510880 417994576 438220120 441591044 453288820 456213264 478304580 522493220 525864144 539794320 543946584 551988805 570266580 589275466 626991864 637739440 657330180 662386566 679241186 679933230 725262112 760355440 765287328 783739830 835989152 876440240 883182088 883913199 906577640 912426528 956609160 1018861779 1044986440 1051728288 1079588640 1087893168 1103977610 1140533160 1178550932 1253983728 1275478880 1314660360 1324773132 1358482372 1359866460 1435170893 1473188665 1520710880 1567479660 1655966415 1698102965 1752880480 1766364176 1767826398 1813155280 1913218320 2037723558 2089972880 2175786336 2207955220 2281066320 2357101864 2507967456 2629320720 2649546264 2716964744 2719732920 2870341786 2946377330 3134959320 3311932830 3396205930 3422330591 3532728352 3535652796 3626310560 3826436640 4075447116 4179945760 4305512679 4415910440 4419565995 4562132640 4714203728 5094308895 5258641440 5299092528 5433929488 5439465840 5740683572 5892754660 6269918640 6623865660 6792411860 6844661182 7071305592 7175854465 8150894232 8611025358 8831820880 8839131990 9428407456 10188617790 10266991773 10598185056 10867858976 10878931680 11481367144 11785509320 12539837280 13247731320 13584823720 13689322364 14142611184 14351708930 16301788464 17111652955 17222050716 17663641760 17678263980 20377235580 20533983546 21527563395 22962734288 23571018640 26495462640 27169647440 27378644728 28285222368 28703417860 32603576928 34223305910 34444101432 35356527960 40754471160 41067967092 43055126790 44490297683 45925468576 47142037280 51334958865 52990925280 54339294880 54757289456 57406835720 68446611820 68888202864 70713055920 81508942320 82135934184 86110253580 88980595366 102669917730 109514578912 114813671440 133470893049 136893223640 137776405728 141426111840 163017884640 164271868368 172220507160 177961190732 205339835460 222451488415 229627342880 266941786098 273786447280 328543736736 344441014320 355922381464 410679670920 444902976830 533883572196 547572894560 667354465245 688882028640 711844762928 821359341840 889805953660 1067767144392 1334708930490 1423689525856 1642718683680 1779611907320 2135534288784 2669417860980 3559223814640 4271068577568 5338835721960 7118447629280 10677671443920 21355342887840
• Sum of all divisors σ(n): 75864247861248
• Sum of proper divisors (its aliquot sum) s(n): 54508904973408
• 21355342887840 is an abundant number, because the sum of its proper divisors (54508904973408) is greater than itself. Its abundance is 33153562085568

Bases of 21355342887840

• Binary: 100110110110000101101101000000111101110100000₂
• Hexadecimal: 0x136C2DA07BA0
• Base-36: 7KIIBRYQO

Squares and roots of 21355342887840

• 21355342887840 squared (21355342887840²) is 456050669857218470819865600
• 21355342887840 cubed (21355342887840³) is 9739118429030018339108097414744674304000
• The square root of 21355342887840 is 4621184.1434679921
• The cube root of 21355342887840 is 27743.9855538169

Scales and comparisons

• 21,355,342,887,840 seconds is equal to 679,033 years, 44 weeks, 11 hours, 4 minutes.
• To count from 1 to 21,355,342,887,840 would take you about one million, six hundred ninety-seven thousand, five hundred eighty-four 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 21355342887840 cubic inches would be around 2312 feet tall.

Recreational maths with 21355342887840

• 21355342887840 backwards is 04878824355312
• 21355342887840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21355342887840's digits is 60
• More coming soon!