1142138881

Names of 1142138881

• Cardinal: 1142138881 can be written as One billion, one hundred forty-two million, one hundred thirty-eight thousand, eight hundred eighty-one.

Scientific notation

• Scientific notation: 1.142138881 × 10⁹

Factors of 1142138881

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 5512

Divisors of 1142138881

• Number of divisors d(n): 16
• Complete list of divisors:
  1 13 103 163 1339 2119 5233 16789 68029 218257 538999 852979 7006987 11088727 87856837 1142138881
• Sum of all divisors σ(n): 1249795456
• Sum of proper divisors (its aliquot sum) s(n): 107656575
• 1142138881 is a deficient number, because the sum of its proper divisors (107656575) is less than itself. Its deficiency is 1034482306

Bases of 1142138881

• Binary: 1000100000100111010100000000001₂
• Hexadecimal: 0x4413A801
• Base-36: IW0001

Squares and roots of 1142138881

• 1142138881 squared (1142138881²) is 1304481223491932161
• 1142138881 cubed (1142138881³) is 1489898724884586310892451841
• The square root of 1142138881 is 33795.5452833653
• The cube root of 1142138881 is 1045.2968429389

Scales and comparisons

• 1,142,138,881 seconds is equal to 36 years, 16 weeks, 3 days, 4 hours, 48 minutes, 1 second.
• To count from 1 to 1,142,138,881 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 1142138881 cubic inches would be around 87.1 feet tall.

Recreational maths with 1142138881

• 1142138881 backwards is 1888312411
• The number of decimal digits it has is: 10
• The sum of 1142138881's digits is 37
• More coming soon!