21432269975436928

Names of 21432269975436928

• Cardinal: 21432269975436928 can be written as Twenty-one quadrillion, four hundred thirty-two trillion, two hundred sixty-nine billion, nine hundred seventy-five million, four hundred thirty-six thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1432269975436928 × 10¹⁶

Factors of 21432269975436928

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3893944399652

Divisors of 21432269975436928

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 8 16 32 43 64 86 128 172 344 688 1376 2752 5504 3893944399607 7787888799214 15575777598428 31151555196856 62303110393712 124606220787424 167439609183101 249212441574848 334879218366202 498424883149696 669758436732404 1339516873464808 2679033746929616 5358067493859232 10716134987718464 21432269975436928
• Sum of all divisors σ(n): 43690056163601760
• Sum of proper divisors (its aliquot sum) s(n): 22257786188164832
• 21432269975436928 is an abundant number, because the sum of its proper divisors (22257786188164832) is greater than itself. Its abundance is 825516212727904

Bases of 21432269975436928

• Binary: 1001100001001001000100100110110100111011011111010000000₂
• Hexadecimal: 0x4C2489369DBE80
• Base-36: 5V13SWIK9DS

Squares and roots of 21432269975436928

• 21432269975436928 squared (21432269975436928²) is 459342196300015218336464506077184
• 21432269975436928 cubed (21432269975436928³) is 9844745962212071723140650730568550439461691850752
• The square root of 21432269975436928 is 146397643.3397646193
• The cube root of 21432269975436928 is 277772.5913822381

Scales and comparisons

• 21,432,269,975,436,928 seconds is equal to 681,479,890 years, 44 weeks, 3 days, 6 hours, 15 minutes, 28 seconds.
• To count from 1 to 21,432,269,975,436,928 would take you about two billion, forty-four million, four hundred thirty-nine thousand, six hundred seventy-two 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 21432269975436928 cubic inches would be around 23147.7 feet tall.

Recreational maths with 21432269975436928

• 21432269975436928 backwards is 82963457996223412
• The number of decimal digits it has is: 17
• The sum of 21432269975436928's digits is 82
• More coming soon!