21221443823942

Names of 21221443823942

• Cardinal: 21221443823942 can be written as Twenty-one trillion, two hundred twenty-one billion, four hundred forty-three million, eight hundred twenty-three thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 2.1221443823942 × 10¹³

Factors of 21221443823942

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 75644

Divisors of 21221443823942

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 43 86 947 1894 3671 7342 40721 70981 81442 141962 157853 315706 3052183 3476437 6104366 6952874 67219007 134438014 149486791 260571251 298973582 521142502 2890417301 5780834602 11204563793 22409127586 246760974697 493521949394 10610721911971 21221443823942
• Sum of all divisors σ(n): 32616185842944
• Sum of proper divisors (its aliquot sum) s(n): 11394742019002
• 21221443823942 is a deficient number, because the sum of its proper divisors (11394742019002) is less than itself. Its deficiency is 9826701804940

Bases of 21221443823942

• Binary: 100110100110100000000100111101110100101000110₂
• Hexadecimal: 0x134D009EE946
• Base-36: 7ISZVQBT2

Squares and roots of 21221443823942

• 21221443823942 squared (21221443823942²) is 450349677972726055492419364
• 21221443823942 cubed (21221443823942³) is 9557070392228575909451066079757247612888
• The square root of 21221443823942 is 4606673.8352027919
• The cube root of 21221443823942 is 27685.8785488927

Scales and comparisons

• 21,221,443,823,942 seconds is equal to 674,776 years, 14 weeks, 18 hours, 39 minutes, 2 seconds.
• To count from 1 to 21,221,443,823,942 would take you about one million, six hundred eighty-six thousand, nine hundred forty 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 21221443823942 cubic inches would be around 2307.2 feet tall.

Recreational maths with 21221443823942

• 21221443823942 backwards is 24932834412212
• The number of decimal digits it has is: 14
• The sum of 21221443823942's digits is 47
• More coming soon!