1139728749

Names of 1139728749

• Cardinal: 1139728749 can be written as One billion, one hundred thirty-nine million, seven hundred twenty-eight thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 1.139728749 × 10⁹

Factors of 1139728749

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4268739

Divisors of 1139728749

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 89 267 4268647 12805941 379909583 1139728749
• Sum of all divisors σ(n): 1536713280
• Sum of proper divisors (its aliquot sum) s(n): 396984531
• 1139728749 is a deficient number, because the sum of its proper divisors (396984531) is less than itself. Its deficiency is 742744218

Bases of 1139728749

• Binary: 1000011111011101110000101101101₂
• Hexadecimal: 0x43EEE16D
• Base-36: IUKCBX

Squares and roots of 1139728749

• 1139728749 squared (1139728749²) is 1298981621297105001
• 1139728749 cubed (1139728749³) is 1480486698214941240111373749
• The square root of 1139728749 is 33759.8689126601
• The cube root of 1139728749 is 1044.5610662413

Scales and comparisons

• 1,139,728,749 seconds is equal to 36 years, 12 weeks, 3 days, 7 hours, 19 minutes, 9 seconds.
• To count from 1 to 1,139,728,749 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 1139728749 cubic inches would be around 87 feet tall.

Recreational maths with 1139728749

• 1139728749 backwards is 9478279311
• The number of decimal digits it has is: 10
• The sum of 1139728749's digits is 51
• More coming soon!