21281238480384

Names of 21281238480384

• Cardinal: 21281238480384 can be written as Twenty-one trillion, two hundred eighty-one billion, two hundred thirty-eight million, four hundred eighty thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 2.1281238480384 × 10¹³

Factors of 21281238480384

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 810875

Divisors of 21281238480384

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 211 216 243 256 288 324 384 422 432 486 512 576 633 648 768 844 864 972 1152 1266 1296 1536 1688 1728 1899 1944 2304 2532 2592 3376 3456 3798 3888 4608 5064 5184 5697 6752 6912 7596 7776 10128 10368 11394 13504 13824 15192 15552 17091 20256 20736 22788 27008 30384 31104 34182 40512 41472 45576 51273 54016 60768 62208 68364 81024 91152 102546 108032 121536 124416 136728 162048 182304 205092 243072 273456 324096 364608 410184 486144 546912 729216 810659 820368 972288 1093824 1458432 1621318 1640736 2187648 2431977 2916864 3242636 3281472 4375296 4863954 6485272 6562944 7295931 8750592 9727908 12970544 13125888 14591862 19455816 21887793 25941088 26251776 29183724 38911632 43775586 51882176 58367448 65663379 77823264 87551172 103764352 116734896 131326758 155646528 171049049 175102344 196990137 207528704 233469792 262653516 311293056 342098098 350204688 393980274 415057408 466939584 513147147 525307032 622586112 684196196 700409376 787960548 933879168 1026294294 1050614064 1245172224 1368392392 1400818752 1539441441 1575921096 1867758336 2052588588 2101228128 2736784784 2801637504 3078882882 3151842192 3735516672 4105177176 4202456256 4618324323 5473569568 5603275008 6157765764 6303684384 8210354352 8404912512 9236648646 10947139136 11206550016 12315531528 12607368768 13854972969 16420708704 16809825024 18473297292 21894278272 24631063056 25214737536 27709945938 32841417408 33619650048 36946594584 41564918907 43788556544 49262126112 50429475072 55419891876 65682834816 73893189168 83129837814 87577113088 98524252224 100858950144 110839783752 131365669632 147786378336 166259675628 197048504448 221679567504 262731339264 295572756672 332519351256 394097008896 443359135008 591145513344 665038702512 788194017792 886718270016 1182291026688 1330077405024 1773436540032 2364582053376 2660154810048 3546873080064 5320309620096 7093746160128 10640619240192 21281238480384
• Sum of all divisors σ(n): 63995822130240
• Sum of proper divisors (its aliquot sum) s(n): 42714583649856
• 21281238480384 is an abundant number, because the sum of its proper divisors (42714583649856) is greater than itself. Its abundance is 21433345169472

Bases of 21281238480384

• Binary: 100110101101011101100101010001111011000000000₂
• Hexadecimal: 0x135AECA8F600
• Base-36: 7JKGRXC00

Squares and roots of 21281238480384

• 21281238480384 squared (21281238480384²) is 452891111258976701552787456
• 21281238480384 cubed (21281238480384³) is 9638083744348406413232103213284777263104
• The square root of 21281238480384 is 4613159.2732512499
• The cube root of 21281238480384 is 27711.8572271107

Scales and comparisons

• 21,281,238,480,384 seconds is equal to 676,677 years, 28 weeks, 6 days, 13 hours, 26 minutes, 24 seconds.
• To count from 1 to 21,281,238,480,384 would take you about one million, six hundred ninety-one thousand, six hundred ninety-three 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 21281238480384 cubic inches would be around 2309.3 feet tall.

Recreational maths with 21281238480384

• 21281238480384 backwards is 48308483218212
• 21281238480384 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21281238480384's digits is 54
• More coming soon!