21239942699136

Names of 21239942699136

• Cardinal: 21239942699136 can be written as Twenty-one trillion, two hundred thirty-nine billion, nine hundred forty-two million, six hundred ninety-nine thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 2.1239942699136 × 10¹³

Factors of 21239942699136

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7901764409

Divisors of 21239942699136

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 336 384 448 672 896 1344 2688 7901764397 15803528794 23705293191 31607057588 47410586382 55312350779 63214115176 94821172764 110624701558 126428230352 165937052337 189642345528 221249403116 252856460704 331874104674 379284691056 442498806232 505712921408 663748209348 758569382112 884997612464 1011425842816 1327496418696 1517138764224 1769995224928 2654992837392 3034277528448 3539990449856 5309985674784 7079980899712 10619971349568 21239942699136
• Sum of all divisors σ(n): 64478397487680
• Sum of proper divisors (its aliquot sum) s(n): 43238454788544
• 21239942699136 is an abundant number, because the sum of its proper divisors (43238454788544) is greater than itself. Its abundance is 21998512089408

Bases of 21239942699136

• Binary: 100110101000101001111001111010101100010000000₂
• Hexadecimal: 0x13514F3D5880
• Base-36: 7J1HTHF9C

Squares and roots of 21239942699136

• 21239942699136 squared (21239942699136²) is 451135165862580669015146496
• 21239942699136 cubed (21239942699136³) is 9582085072486428700704107309116692627456
• The square root of 21239942699136 is 4608681.2321027365
• The cube root of 21239942699136 is 27693.9208679595

Scales and comparisons

• 21,239,942,699,136 seconds is equal to 675,364 years, 24 weeks, 6 days, 3 hours, 5 minutes, 36 seconds.
• To count from 1 to 21,239,942,699,136 would take you about one million, six hundred eighty-eight thousand, four hundred eleven 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 21239942699136 cubic inches would be around 2307.8 feet tall.

Recreational maths with 21239942699136

• 21239942699136 backwards is 63199624993212
• The number of decimal digits it has is: 14
• The sum of 21239942699136's digits is 66
• More coming soon!