742005138

Names of 742005138

• Cardinal: 742005138 can be written as Seven hundred forty-two million, five thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 7.42005138 × 10⁸

Factors of 742005138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 132864

Divisors of 742005138

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 7 14 19 21 38 42 49 57 98 114 133 147 266 294 399 798 931 1862 2793 5586 132833 265666 398499 796998 929831 1859662 2523827 2789493 5047654 5578986 6508817 7571481 13017634 15142962 17666789 19526451 35333578 39052902 53000367 106000734 123667523 247335046 371002569 742005138
• Sum of all divisors σ(n): 1817169120
• Sum of proper divisors (its aliquot sum) s(n): 1075163982
• 742005138 is an abundant number, because the sum of its proper divisors (1075163982) is greater than itself. Its abundance is 333158844

Bases of 742005138

• Binary: 101100001110100001100110010010₂
• Hexadecimal: 0x2C3A1992
• Base-36: C9RQTU

Squares and roots of 742005138

• 742005138 squared (742005138²) is 550571624818399044
• 742005138 cubed (742005138³) is 408526974452260407582288072
• The square root of 742005138 is 27239.7712545461
• The cube root of 742005138 is 905.3203948861

Scales and comparisons

• 742,005,138 seconds is equal to 23 years, 30 weeks, 6 days, 32 minutes, 18 seconds.
• To count from 1 to 742,005,138 would take you about thirty-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 742005138 cubic inches would be around 75.4 feet tall.

Recreational maths with 742005138

• 742005138 backwards is 831500247
• The number of decimal digits it has is: 9
• The sum of 742005138's digits is 30
• More coming soon!