21015736138846

Names of 21015736138846

• Cardinal: 21015736138846 can be written as Twenty-one trillion, fifteen billion, seven hundred thirty-six million, one hundred thirty-eight thousand, eight hundred forty-six.

Scientific notation

• Scientific notation: 2.1015736138846 × 10¹³

Factors of 21015736138846

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 48627698

Divisors of 21015736138846

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 217057 434114 48410639 96821278 10507868069423 21015736138846
• Sum of all divisors σ(n): 31523750091360
• Sum of proper divisors (its aliquot sum) s(n): 10508013952514
• 21015736138846 is a deficient number, because the sum of its proper divisors (10508013952514) is less than itself. Its deficiency is 10507722186332

Bases of 21015736138846

• Binary: 100110001110100011011011111001011110001011110₂
• Hexadecimal: 0x131D1B7CBC5E
• Base-36: 7G6HUOQ5A

Squares and roots of 21015736138846

• 21015736138846 squared (21015736138846²) is 441661165457597780590211716
• 21015736138846 cubed (21015736138846³) is 9281834516032080330195435051391511919736
• The square root of 21015736138846 is 4584292.3269405499
• The cube root of 21015736138846 is 27596.1312835359

Scales and comparisons

• 21,015,736,138,846 seconds is equal to 668,235 years, 20 weeks, 6 days, 19 hours, 46 seconds.
• To count from 1 to 21,015,736,138,846 would take you about one million, six hundred seventy thousand, five hundred eighty-eight 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 21015736138846 cubic inches would be around 2299.7 feet tall.

Recreational maths with 21015736138846

• 21015736138846 backwards is 64883163751012
• The number of decimal digits it has is: 14
• The sum of 21015736138846's digits is 55
• More coming soon!