8138713641

Names of 8138713641

• Cardinal: 8138713641 can be written as Eight billion, one hundred thirty-eight million, seven hundred thirteen thousand, six hundred forty-one.

Scientific notation

• Scientific notation: 8.138713641 × 10⁹

Factors of 8138713641

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 45981495

Divisors of 8138713641

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 59 177 45981433 137944299 2712904547 8138713641
• Sum of all divisors σ(n): 11035544160
• Sum of proper divisors (its aliquot sum) s(n): 2896830519
• 8138713641 is a deficient number, because the sum of its proper divisors (2896830519) is less than itself. Its deficiency is 5241883122

Bases of 8138713641

• Binary: 111100101000110101110101000101001₂
• Hexadecimal: 0x1E51AEA29
• Base-36: 3QLKVMX

Squares and roots of 8138713641

• 8138713641 squared (8138713641²) is 66238659730199476881
• 8138713641 cubed (8138713641³) is 539097483507731862142458833721
• The square root of 8138713641 is 90214.8194090085
• The cube root of 8138713641 is 2011.4932956429

Scales and comparisons

• 8,138,713,641 seconds is equal to 258 years, 40 weeks, 6 days, 1 hour, 47 minutes, 21 seconds.
• To count from 1 to 8,138,713,641 would take you about five hundred seventeen 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 8138713641 cubic inches would be around 167.6 feet tall.

Recreational maths with 8138713641

• 8138713641 backwards is 1463178318
• The number of decimal digits it has is: 10
• The sum of 8138713641's digits is 42
• More coming soon!