521407686421

Names of 521407686421

• Cardinal: 521407686421 can be written as Five hundred twenty-one billion, four hundred seven million, six hundred eighty-six thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 5.21407686421 × 10¹¹

Factors of 521407686421

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 19069923

Divisors of 521407686421

• Number of divisors d(n): 8
• Complete list of divisors:
  1 37 739 27343 19069147 705558439 14092099633 521407686421
• Sum of all divisors σ(n): 536224441760
• Sum of proper divisors (its aliquot sum) s(n): 14816755339
• 521407686421 is a deficient number, because the sum of its proper divisors (14816755339) is less than itself. Its deficiency is 506590931082

Bases of 521407686421

• Binary: 111100101100110010100011110011100010101₂
• Hexadecimal: 0x796651E715
• Base-36: 6NJ4O9P1

Squares and roots of 521407686421

• 521407686421 squared (521407686421²) is 271865975458899867789241
• 521407686421 cubed (521407686421³) is 141753009280613343837890929845596461
• The square root of 521407686421 is 722085.6503358865
• The cube root of 521407686421 is 8048.7012882247

Scales and comparisons

• 521,407,686,421 seconds is equal to 16,579 years, 7 weeks, 6 days, 4 hours, 27 minutes, 1 second.
• To count from 1 to 521,407,686,421 would take you about thirty-three thousand, one hundred fifty-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 521407686421 cubic inches would be around 670.7 feet tall.

Recreational maths with 521407686421

• 521407686421 backwards is 124686704125
• The number of decimal digits it has is: 12
• The sum of 521407686421's digits is 46
• More coming soon!