13978543186521

Names of 13978543186521

• Cardinal: 13978543186521 can be written as Thirteen trillion, nine hundred seventy-eight billion, five hundred forty-three million, one hundred eighty-six thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 1.3978543186521 × 10¹³

Factors of 13978543186521

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5925

Divisors of 13978543186521

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 27 71 81 213 639 1917 5041 5751 5851 15123 17553 45369 52659 136107 157977 408321 415421 473931 1246263 3738789 11216367 29494891 33649101 34234201 88484673 102702603 265454019 308107809 796362057 924323427 2389086171 2430628271 2772970281 7291884813 21875654439 65626963317 172574607241 196880889951 517723821723 1553171465169 4659514395507 13978543186521
• Sum of all divisors σ(n): 21183396309669
• Sum of proper divisors (its aliquot sum) s(n): 7204853123148
• 13978543186521 is a deficient number, because the sum of its proper divisors (7204853123148) is less than itself. Its deficiency is 6773690063373

Bases of 13978543186521

• Binary: 11001011011010100010000110011110001001011001₂
• Hexadecimal: 0xCB6A219E259
• Base-36: 4YDNJP4K9

Squares and roots of 13978543186521

• 13978543186521 squared (13978543186521²) is 195399669617432672596083441
• 13978543186521 cubed (13978543186521³) is 2731402720379217940202433536900542498761
• 13978543186521 is a perfect square number. Its square root is 3738789
• The cube root of 13978543186521 is 24089.1034953257

Scales and comparisons

• 13,978,543,186,521 seconds is equal to 444,474 years, 22 weeks, 4 days, 6 hours, 55 minutes, 21 seconds.
• To count from 1 to 13,978,543,186,521 would take you about one million, one hundred eleven thousand, one hundred eighty-six 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 13978543186521 cubic inches would be around 2007.4 feet tall.

Recreational maths with 13978543186521

• 13978543186521 backwards is 12568134587931
• The number of decimal digits it has is: 14
• The sum of 13978543186521's digits is 63
• More coming soon!