1138215739

Names of 1138215739

• Cardinal: 1138215739 can be written as One billion, one hundred thirty-eight million, two hundred fifteen thousand, seven hundred thirty-nine.

Scientific notation

• Scientific notation: 1.138215739 × 10⁹

Factors of 1138215739

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 66953884

Divisors of 1138215739

• Number of divisors d(n): 4
• Complete list of divisors:
  1 17 66953867 1138215739
• Sum of all divisors σ(n): 1205169624
• Sum of proper divisors (its aliquot sum) s(n): 66953885
• 1138215739 is a deficient number, because the sum of its proper divisors (66953885) is less than itself. Its deficiency is 1071261854

Bases of 1138215739

• Binary: 1000011110101111100101100111011₂
• Hexadecimal: 0x43D7CB3B
• Base-36: ITNWVV

Squares and roots of 1138215739

• 1138215739 squared (1138215739²) is 1295535068507316121
• 1138215739 cubed (1138215739³) is 1474598405401470445570628419
• The square root of 1138215739 is 33737.4530603601
• The cube root of 1138215739 is 1044.0986371453

Scales and comparisons

• 1,138,215,739 seconds is equal to 36 years, 9 weeks, 6 days, 19 hours, 2 minutes, 19 seconds.
• To count from 1 to 1,138,215,739 would take you about seventy-two 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 1138215739 cubic inches would be around 87 feet tall.

Recreational maths with 1138215739

• 1138215739 backwards is 9375128311
• The number of decimal digits it has is: 10
• The sum of 1138215739's digits is 40
• More coming soon!