21128825778368

Names of 21128825778368

• Cardinal: 21128825778368 can be written as Twenty-one trillion, one hundred twenty-eight billion, eight hundred twenty-five million, seven hundred seventy-eight thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1128825778368 × 10¹³

Factors of 21128825778368

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 16853

Divisors of 21128825778368

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 56 61 64 77 88 112 122 154 176 224 244 308 352 427 448 488 616 671 704 854 976 1232 1342 1708 1952 2464 2684 3416 3904 4697 4928 5368 6832 8191 8581 9394 10736 13664 16382 17162 18788 21472 27328 32764 34324 37576 42944 57337 60067 65528 68648 75152 90101 94391 114674 120134 131056 137296 150304 180202 188782 229348 240268 262112 274592 300608 360404 377564 458696 480536 499651 523441 524224 549184 630707 660737 720808 755128 917392 961072 999302 1046882 1261414 1321474 1441616 1510256 1834784 1922144 1998604 2093764 2522828 2642948 2883232 3020512 3497557 3664087 3669568 3844288 3997208 4187528 5045656 5285896 5496161 5757851 5766464 6041024 6995114 7328174 7994416 8375056 10091312 10571792 10992322 11515702 13990228 14656348 15988832 16750112 20182624 21143584 21984644 23031404 27980456 29312696 31977664 33500224 38473127 40304957 40365248 42287168 43969288 46062808 55960912 58625392 70286971 76946254 80609914 87938576 92125616 111921824 117250784 140573942 153892508 161219828 175877152 184251232 223843648 234501568 281147884 307785016 322439656 351754304 368502464 492008797 562295768 615570032 644879312 773156681 984017594 1124591536 1231140064 1289758624 1546313362 1968035188 2249183072 2462280128 2579517248 3092626724 3936070376 4287505231 4498366144 5412096767 6185253448 7872140752 8575010462 10824193534 12370506896 15744281504 17150020924 21648387068 24741013792 30012536617 31488563008 34300041848 43296774136 47162557541 49482027584 60025073234 68600083696 86593548272 94325115082 120050146468 137200167392 173187096544 188650230164 240100292936 274400334784 330137902787 346374193088 377300460328 480200585872 660275805574 754600920656 960401171744 1320551611148 1509201841312 1920802343488 2641103222296 3018403682624 5282206444592 10564412889184 21128825778368
• Sum of all divisors σ(n): 53142881304576
• Sum of proper divisors (its aliquot sum) s(n): 32014055526208
• 21128825778368 is an abundant number, because the sum of its proper divisors (32014055526208) is greater than itself. Its abundance is 10885229747840

Bases of 21128825778368

• Binary: 100110011011101110000001001111011000011000000₂
• Hexadecimal: 0x13377027B0C0
• Base-36: 7HMG5C6GW

Squares and roots of 21128825778368

• 21128825778368 squared (21128825778368²) is 446427278772628121056743424
• 21128825778368 cubed (21128825778368³) is 9432484195897782483579752206292065452032
• The square root of 21128825778368 is 4596610.2486906587
• The cube root of 21128825778368 is 27645.5427540219

Scales and comparisons

• 21,128,825,778,368 seconds is equal to 671,831 years, 15 weeks, 5 days, 15 hours, 46 minutes, 8 seconds.
• To count from 1 to 21,128,825,778,368 would take you about one million, six hundred seventy-nine thousand, five hundred seventy-eight 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 21128825778368 cubic inches would be around 2303.8 feet tall.

Recreational maths with 21128825778368

• 21128825778368 backwards is 86387752882112
• The number of decimal digits it has is: 14
• The sum of 21128825778368's digits is 68
• More coming soon!