21821341810905

Names of 21821341810905

• Cardinal: 21821341810905 can be written as Twenty-one trillion, eight hundred twenty-one billion, three hundred forty-one million, eight hundred ten thousand, nine hundred five.

Scientific notation

• Scientific notation: 2.1821341810905 × 10¹³

Factors of 21821341810905

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 57

Divisors of 21821341810905

• Number of divisors d(n): 504
• Complete list of divisors:
  1 3 5 7 9 13 15 21 29 35 39 45 49 63 65 87 91 105 117 145 147 169 195 203 245 261 273 315 343 377 435 441 455 507 585 609 637 735 819 841 845 1015 1029 1131 1183 1305 1365 1421 1521 1715 1827 1885 1911 2205 2401 2523 2535 2639 3045 3087 3185 3393 3549 4095 4205 4263 4459 4901 5145 5655 5733 5887 5915 7105 7203 7569 7605 7917 8281 9135 9555 9947 10647 10933 12005 12615 12789 13195 13377 14703 15435 16807 16965 17661 17745 18473 21315 21609 22295 23751 24389 24505 24843 28665 29435 29841 31213 32799 34307 36015 37845 39585 40131 41209 41405 44109 49735 50421 52983 53235 54665 55419 57967 63945 66885 69629 73167 73515 74529 76531 84035 88305 89523 92365 93639 98397 102921 108045 117649 118755 121945 123627 124215 129311 142129 149205 151263 156065 163995 166257 170723 171535 173901 200655 206045 208887 218491 219501 220545 229593 240149 252105 264915 277095 280917 288463 289835 308763 317057 348145 352947 365835 370881 372645 382655 387933 405769 426387 447615 468195 487403 491985 512169 514605 521703 535717 588245 618135 626661 646555 655473 688779 710645 720447 756315 831285 853615 865389 869505 905177 951171 994903 1044435 1058841 1092455 1097505 1147965 1163799 1195061 1200745 1217307 1279161 1404585 1442315 1462209 1529437 1536507 1543815 1585285 1607151 1681043 1764735 1854405 1939665 1966419 2019241 2028845 2131935 2161341 2219399 2437015 2560845 2596167 2608515 2678585 2715531 2840383 2853513 2984709 3133305 3277365 3411821 3443895 3585183 3602235 3651921 3750019 4121741 4326945 4386627 4525885 4588311 4755855 4821453 4974515 5043129 5294205 5818995 5975305 6057723 6086535 6336239 6395805 6658197 6964321 7311045 7647185 7682535 8035755 8146593 8365427 8405215 8521149 8954127 9832095 10096205 10235463 10755549 10806705 11096995 11250057 11767301 12365223 12980835 13577655 13764933 14134687 14201915 14267565 14923545 15129387 15535793 17059105 17925915 18173169 18259605 18750095 19008717 19882681 19974591 20608705 20892963 21933135 22941555 24107265 25096281 25215645 25563447 26250133 28852187 30288615 30706389 31681195 33290985 33750171 34821605 35301903 37095669 40732965 41827135 42404061 42605745 44353673 44770635 46607379 48750247 51177315 53777745 56250285 57026151 58557989 58836505 59648043 61826115 62678889 68824665 70673435 75288843 75646935 77678965 78750399 82371107 86556561 90865845 95043585 98942809 99413405 99872955 104464815 105905709 108750551 125481405 127212183 127817235 131250665 133061019 139822137 144260935 146250741 153531945 168750855 175673967 176509515 178944129 183750931 185478345 201965309 212020305 221768365 233036895 236251197 243751235 247113321 259669683 285130755 292789945 296828427 298240215 313394445 326251653 341251729 376444215 393751995 399183057 409905923 411855535 432782805 438752223 494714045 527021901 529528545 543752755 551252793 576597749 605895927 636060915 665305095 699110685 731253705 741339963 761253857 878369835 890485281 894720645 918754655 978754959 1009826545 1023755187 1181255985 1229717769 1235566605 1286256517 1298348415 1413757163 1484142135 1631258265 1653758379 1706258645 1729793247 1817687781 1995915285 2049529615 2193761115 2283761571 2388762103 2635109505 2756263965 2869341461 2882988745 3029479635 3071265561 3689153307 3706699815 3806269285 3858769551 4241271489 4452426405 4893774795 5118775935 5189379741 5328776999 6148588845 6431282585 6851284713 7068785815 7166286309 8268791895 8608024383 8648966235 9088438905 9896300141 11418807855 11576308653 11943810515 12723814467 14346707305 15356327805 15986330997 16721334721 18445766535 19293847755 21206357445 21498858927 25824073149 25946898705 26643884995 29688900423 34256423565 35831431545 37301438993 43040121915 47958992991 49481500705 50164004163 57881543265 63619072335 69274100987 79931654985 83606673605 89066701269 107494294635 111904316979 129120365745 148444502115 150492012489 186507194965 207822302961 239794964955 250820020815 335712950937 346370504935 445333506345 484918706909 559521584895 623466908883 752460062445 1039111514805 1454756120727 1678564754685 2424593534545 3117334544415 4364268362181 7273780603635 21821341810905
• Sum of all divisors σ(n): 49489554118680
• Sum of proper divisors (its aliquot sum) s(n): 27668212307775
• 21821341810905 is an abundant number, because the sum of its proper divisors (27668212307775) is greater than itself. Its abundance is 5846870496870

Bases of 21821341810905

• Binary: 100111101100010101101010100111100000011011001₂
• Hexadecimal: 0x13D8AD53C0D9
• Base-36: 7QGL3I509

Squares and roots of 21821341810905

• 21821341810905 squared (21821341810905²) is 476170958428350704776919025
• 21821341810905 cubed (21821341810905³) is 10390689244291275840869207231040046967625
• The square root of 21821341810905 is 4671331.9097346315
• The cube root of 21821341810905 is 27944.3374679839

Scales and comparisons

• 21,821,341,810,905 seconds is equal to 693,851 years, 8 weeks, 6 days, 12 hours, 21 minutes, 45 seconds.
• To count from 1 to 21,821,341,810,905 would take you about one million, seven hundred thirty-four thousand, six hundred twenty-seven 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 21821341810905 cubic inches would be around 2328.7 feet tall.

Recreational maths with 21821341810905

• 21821341810905 backwards is 50901814312812
• 21821341810905 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21821341810905's digits is 45
• More coming soon!