5438721318

Names of 5438721318

• Cardinal: 5438721318 can be written as Five billion, four hundred thirty-eight million, seven hundred twenty-one thousand, three hundred eighteen.

Scientific notation

• Scientific notation: 5.438721318 × 10⁹

Factors of 5438721318

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 906453558

Divisors of 5438721318

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3 6 906453553 1812907106 2719360659 5438721318
• Sum of all divisors σ(n): 10877442648
• Sum of proper divisors (its aliquot sum) s(n): 5438721330
• 5438721318 is an abundant number, because the sum of its proper divisors (5438721330) is greater than itself. Its abundance is 12

Bases of 5438721318

• Binary: 101000100001011000100110100100110₂
• Hexadecimal: 0x1442C4D26
• Base-36: 2HY2O86

Squares and roots of 5438721318

• 5438721318 squared (5438721318²) is 29579689574867657124
• 5438721318 cubed (5438721318³) is 160875688270655083829013369432
• The square root of 5438721318 is 73747.6868654197
• The cube root of 5438721318 is 1758.5940603457

Scales and comparisons

• 5,438,721,318 seconds is equal to 172 years, 48 weeks, 4 days, 3 hours, 55 minutes, 18 seconds.
• To count from 1 to 5,438,721,318 would take you about three hundred forty-five 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 5438721318 cubic inches would be around 146.5 feet tall.

Recreational maths with 5438721318

• 5438721318 backwards is 8131278345
• The number of decimal digits it has is: 10
• The sum of 5438721318's digits is 42
• More coming soon!