21249406398627436

Names of 21249406398627436

• Cardinal: 21249406398627436 can be written as Twenty-one quadrillion, two hundred forty-nine trillion, four hundred six billion, three hundred ninety-eight million, six hundred twenty-seven thousand, four hundred thirty-six.

Scientific notation

• Scientific notation: 2.1249406398627436 × 10¹⁶

Factors of 21249406398627436

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 35493691

Divisors of 21249406398627436

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 23 46 92 8582867 17165734 26910799 34331468 53821598 107643196 197405941 394811882 618948377 789623764 1237896754 2475793508 230971808680733 461943617361466 923887234722932 5312351599656859 10624703199313718 21249406398627436
• Sum of all divisors σ(n): 38803269821299200
• Sum of proper divisors (its aliquot sum) s(n): 17553863422671764
• 21249406398627436 is a deficient number, because the sum of its proper divisors (17553863422671764) is less than itself. Its deficiency is 3695542975955672

Bases of 21249406398627436

• Binary: 1001011011111100011100011111000000100111111111001101100₂
• Hexadecimal: 0x4B7E38F813FE6C
• Base-36: 5T8AAJABT64

Squares and roots of 21249406398627436

• 21249406398627436 squared (21249406398627436²) is 451537272294028619509864731934096
• 21249406398627436 cubed (21249406398627436³) is 9594899003103510624587103399785725944692009457856
• The square root of 21249406398627436 is 145771761.3210028961
• The cube root of 21249406398627436 is 276980.3337166533

Scales and comparisons

• 21,249,406,398,627,436 seconds is equal to 675,665,394 years, 38 weeks, 5 days, 19 hours, 37 minutes, 16 seconds.
• To count from 1 to 21,249,406,398,627,436 would take you about two billion, twenty-six million, nine hundred ninety-six thousand, one hundred eighty-four 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 21249406398627436 cubic inches would be around 23081.7 feet tall.

Recreational maths with 21249406398627436

• 21249406398627436 backwards is 63472689360494212
• The number of decimal digits it has is: 17
• The sum of 21249406398627436's digits is 76
• More coming soon!