21085400108640

Names of 21085400108640

• Cardinal: 21085400108640 can be written as Twenty-one trillion, eighty-five billion, four hundred million, one hundred eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.108540010864 × 10¹³

Factors of 21085400108640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 17446

Divisors of 21085400108640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 157 160 168 210 224 240 280 314 336 420 471 480 560 628 672 785 840 942 1099 1120 1256 1570 1680 1884 2198 2355 2512 2753 3140 3297 3360 3768 4396 4710 5024 5495 5506 6280 6594 7536 8259 8792 9420 10990 11012 12560 13188 13765 14519 15072 16485 16518 17584 18840 19271 21980 22024 25120 26376 27530 29038 32970 33036 35168 37680 38542 41295 43557 43960 44048 52752 55060 57813 58076 65940 66072 72595 75360 77084 82590 87114 87920 88096 96355 101633 105504 110120 115626 116152 131880 132144 145190 154168 165180 174228 175840 192710 203266 217785 220240 231252 232304 263760 264288 289065 290380 304899 308336 330360 348456 385420 406532 432221 435570 440480 462504 464608 508165 527520 578130 580760 609798 616672 660720 696912 770840 813064 864442 871140 925008 1016330 1156260 1161520 1219596 1296663 1321440 1393824 1524495 1541680 1626128 1728884 1742280 1850016 2032660 2161105 2279483 2312520 2323040 2439192 2593326 3025547 3048990 3083360 3252256 3457768 3484560 4065320 4322210 4558966 4625040 4878384 5186652 6051094 6097980 6483315 6838449 6915536 6969120 8130640 8644420 9076641 9117932 9250080 9756768 10373304 11397415 12102188 12195960 12966630 13676898 13831072 15127735 15956381 16261280 17288840 18153282 18235864 20746608 22794830 24204376 24391920 25933260 27353796 30255470 31912762 34192245 34577680 36306564 36471728 39970807 41493216 45383205 45589660 47869143 48408752 48783840 51866520 54707592 60510940 63825524 68384490 69155360 72613128 72943456 79781905 79941614 90766410 91179320 95738286 96817504 103733040 109415184 119912421 121021880 127651048 136768980 145226256 159563810 159883228 181532820 182358640 191476572 199854035 207466080 218830368 239345715 239824842 242043760 255302096 273537960 279795649 290452512 319127620 319766456 363065640 364717280 382953144 399708070 478691430 479649684 484087520 510604192 547075920 559591298 599562105 638255240 639532912 726131280 765906288 799416140 839386947 957382860 959299368 1094151840 1119182596 1199124210 1276510480 1279065824 1398978245 1452262560 1531812576 1598832280 1678773894 1914765720 1918598736 2238365192 2398248420 2553020960 2797956490 3197664560 3357547788 3829531440 3837197472 4196934735 4476730384 4796496840 5595912980 6275416699 6395329120 6715095576 7659062880 8393869470 8953460768 9592993680 11191825960 12550833398 13430191152 16787738940 18826250097 19185987360 22383651920 25101666796 26860382304 31377083495 33575477880 37652500194 43927916893 44767303840 50203333592 62754166990 67150955760 75305000388 87855833786 94131250485 100406667184 125508333980 131783750679 134301911520 150610000776 175711667572 188262500970 200813334368 219639584465 251016667960 263567501358 301220001552 351423335144 376525001940 439279168930 502033335920 527135002716 602440003104 658918753395 702846670288 753050003880 878558337860 1004066671840 1054270005432 1317837506790 1405693340576 1506100007760 1757116675720 2108540010864 2635675013580 3012200015520 3514233351440 4217080021728 5271350027160 7028466702880 10542700054320 21085400108640
• Sum of all divisors σ(n): 76423938877440
• Sum of proper divisors (its aliquot sum) s(n): 55338538768800
• 21085400108640 is an abundant number, because the sum of its proper divisors (55338538768800) is greater than itself. Its abundance is 34253138660160

Bases of 21085400108640

• Binary: 100110010110101010011110010001000111001100000₂
• Hexadecimal: 0x132D53C88E60
• Base-36: 7H2HYTD9C

Squares and roots of 21085400108640

• 21085400108640 squared (21085400108640²) is 444594097741435723802649600
• 21085400108640 cubed (21085400108640³) is 9374444436817971589297964909759852544000
• The square root of 21085400108640 is 4591884.1567095309
• The cube root of 21085400108640 is 27626.5899793481

Scales and comparisons

• 21,085,400,108,640 seconds is equal to 670,450 years, 26 weeks, 17 hours, 44 minutes.
• To count from 1 to 21,085,400,108,640 would take you about one million, six hundred seventy-six thousand, one hundred twenty-six 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 21085400108640 cubic inches would be around 2302.2 feet tall.

Recreational maths with 21085400108640

• 21085400108640 backwards is 04680100458012
• The number of decimal digits it has is: 14
• The sum of 21085400108640's digits is 39
• More coming soon!