1138678542

Names of 1138678542

• Cardinal: 1138678542 can be written as One billion, one hundred thirty-eight million, six hundred seventy-eight thousand, five hundred forty-two.

Scientific notation

• Scientific notation: 1.138678542 × 10⁹

Factors of 1138678542

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 63259924

Divisors of 1138678542

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 3 6 9 18 63259919 126519838 189779757 379559514 569339271 1138678542
• Sum of all divisors σ(n): 2467136880
• Sum of proper divisors (its aliquot sum) s(n): 1328458338
• 1138678542 is an abundant number, because the sum of its proper divisors (1328458338) is greater than itself. Its abundance is 189779796

Bases of 1138678542

• Binary: 1000011110111101101101100001110₂
• Hexadecimal: 0x43DEDB0E
• Base-36: ITXTZI

Squares and roots of 1138678542

• 1138678542 squared (1138678542²) is 1296588822011245764
• 1138678542 cubed (1138678542³) is 1476397869421262834155196088
• The square root of 1138678542 is 33744.3112538987
• The cube root of 1138678542 is 1044.2401295085

Scales and comparisons

• 1,138,678,542 seconds is equal to 36 years, 10 weeks, 5 days, 3 hours, 35 minutes, 42 seconds.
• To count from 1 to 1,138,678,542 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 1138678542 cubic inches would be around 87 feet tall.

Recreational maths with 1138678542

• 1138678542 backwards is 2458768311
• The number of decimal digits it has is: 10
• The sum of 1138678542's digits is 45
• More coming soon!