21388291396548

Names of 21388291396548

• Cardinal: 21388291396548 can be written as Twenty-one trillion, three hundred eighty-eight billion, two hundred ninety-one million, three hundred ninety-six thousand, five hundred forty-eight.

Scientific notation

• Scientific notation: 2.1388291396548 × 10¹³

Factors of 21388291396548

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 3988746

Divisors of 21388291396548

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 12 191 382 573 764 1146 2292 2341 4682 7023 9364 14046 28092 447131 894262 1341393 1788524 2682786 3986209 5365572 7972418 11958627 15944836 23917254 47834508 761365919 1522731838 2284097757 3045463676 4568195514 9136391028 9331715269 18663430538 27995145807 37326861076 55990291614 111980583228 1782357616379 3564715232758 5347072849137 7129430465516 10694145698274 21388291396548
• Sum of all divisors σ(n): 50188743736320
• Sum of proper divisors (its aliquot sum) s(n): 28800452339772
• 21388291396548 is an abundant number, because the sum of its proper divisors (28800452339772) is greater than itself. Its abundance is 7412160943224

Bases of 21388291396548

• Binary: 100110111001111011001100000101101001111000100₂
• Hexadecimal: 0x1373D982D3C4
• Base-36: 7KXN8GURO

Squares and roots of 21388291396548

• 21388291396548 squared (21388291396548²) is 457459008863649196186316304
• 21388291396548 cubed (21388291396548³) is 9784266583551763376811384777287821718592
• The square root of 21388291396548 is 4624747.7116647131
• The cube root of 21388291396548 is 27758.2466723389

Scales and comparisons

• 21,388,291,396,548 seconds is equal to 680,081 years, 26 weeks, 2 days, 22 hours, 35 minutes, 48 seconds.
• To count from 1 to 21,388,291,396,548 would take you about one million, seven hundred thousand, two hundred three 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 21388291396548 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21388291396548

• 21388291396548 backwards is 84569319288312
• The number of decimal digits it has is: 14
• The sum of 21388291396548's digits is 69
• More coming soon!