21072479087529

Names of 21072479087529

• Cardinal: 21072479087529 can be written as Twenty-one trillion, seventy-two billion, four hundred seventy-nine million, eighty-seven thousand, five hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1072479087529 × 10¹³

Factors of 21072479087529

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1929

Divisors of 21072479087529

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 27 81 317 951 1609 2853 4827 8559 14481 25677 43443 100489 130329 301467 510053 904401 1530159 2588881 2713203 4590477 7766643 8139609 13771431 23299929 41314293 69899787 161686801 209699361 485060403 820675277 1455181209 2462025831 4365543627 7386077493 13096630881 22158232479 66474697437 260154062809 780462188427 2341386565281 7024159695843 21072479087529
• Sum of all divisors σ(n): 31597894774677
• Sum of proper divisors (its aliquot sum) s(n): 10525415687148
• 21072479087529 is a deficient number, because the sum of its proper divisors (10525415687148) is less than itself. Its deficiency is 10547063400381

Bases of 21072479087529

• Binary: 100110010101001010001101000010110101110101001₂
• Hexadecimal: 0x132A51A16BA9
• Base-36: 7GWK9Z1K9

Squares and roots of 21072479087529

• 21072479087529 squared (21072479087529²) is 444049374894347036443325841
• 21072479087529 cubed (21072479087529³) is 9357221166291452879291520227477706536889
• 21072479087529 is a perfect square number. Its square root is 4590477
• The cube root of 21072479087529 is 27620.9456837611

Scales and comparisons

• 21,072,479,087,529 seconds is equal to 670,039 years, 33 weeks, 6 days, 21 hours, 12 minutes, 9 seconds.
• To count from 1 to 21,072,479,087,529 would take you about one million, six hundred seventy-five thousand and ninety-nine 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 21072479087529 cubic inches would be around 2301.7 feet tall.

Recreational maths with 21072479087529

• 21072479087529 backwards is 92578097427012
• The number of decimal digits it has is: 14
• The sum of 21072479087529's digits is 63
• More coming soon!