21381821075182112

Names of 21381821075182112

• Cardinal: 21381821075182112 can be written as Twenty-one quadrillion, three hundred eighty-one trillion, eight hundred twenty-one billion, seventy-five million, one hundred eighty-two thousand, one hundred twelve.

Scientific notation

• Scientific notation: 2.1381821075182112 × 10¹⁶

Factors of 21381821075182112

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 21554255116144

Divisors of 21381821075182112

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 8 16 31 32 62 124 248 496 992 21554255116111 43108510232222 86217020464444 172434040928888 344868081857776 668181908599441 689736163715552 1336363817198882 2672727634397764 5345455268795528 10690910537591056 21381821075182112
• Sum of all divisors σ(n): 43453378314081792
• Sum of proper divisors (its aliquot sum) s(n): 22071557238899680
• 21381821075182112 is an abundant number, because the sum of its proper divisors (22071557238899680) is greater than itself. Its abundance is 689736163717568

Bases of 21381821075182112

• Binary: 1001011111101101010011100101001110101100101001000100000₂
• Hexadecimal: 0x4BF6A729D65220
• Base-36: 5UJ80ZXWIE8

Squares and roots of 21381821075182112

• 21381821075182112 squared (21381821075182112²) is 457182272491101928024253964780544
• 21381821075182112 cubed (21381821075182112³) is 9775389549149894332610026089613296387198914428928
• The square root of 21381821075182112 is 146225240.8963039185
• The cube root of 21381821075182112 is 277554.4727636101

Scales and comparisons

• 21,381,821,075,182,112 seconds is equal to 679,875,771 years, 45 weeks, 3 days, 18 hours, 8 minutes, 32 seconds.
• To count from 1 to 21,381,821,075,182,112 would take you about two billion, thirty-nine million, six hundred twenty-seven thousand, three hundred fifteen 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 21381821075182112 cubic inches would be around 23129.5 feet tall.

Recreational maths with 21381821075182112

• 21381821075182112 backwards is 21128157012818312
• The number of decimal digits it has is: 17
• The sum of 21381821075182112's digits is 53
• More coming soon!