997040638

Names of 997040638

• Cardinal: 997040638 can be written as Nine hundred ninety-seven million, forty thousand, six hundred thirty-eight.

Scientific notation

• Scientific notation: 9.97040638 × 10⁸

Factors of 997040638

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 45320042

Divisors of 997040638

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 11 22 45320029 90640058 498520319 997040638
• Sum of all divisors σ(n): 1631521080
• Sum of proper divisors (its aliquot sum) s(n): 634480442
• 997040638 is a deficient number, because the sum of its proper divisors (634480442) is less than itself. Its deficiency is 362560196

Bases of 997040638

• Binary: 111011011011011010000111111110₂
• Hexadecimal: 0x3B6DA1FE
• Base-36: GHM1HA

Squares and roots of 997040638

• 997040638 squared (997040638²) is 994090033823447044
• 997040638 cubed (997040638³) is 991148161552771220108974072
• The square root of 997040638 is 31575.9503103231
• The cube root of 997040638 is 999.0125713055

Scales and comparisons

• 997,040,638 seconds is equal to 31 years, 36 weeks, 3 days, 19 hours, 43 minutes, 58 seconds.
• To count from 1 to 997,040,638 would take you about forty-seven 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 997040638 cubic inches would be around 83.3 feet tall.

Recreational maths with 997040638

• 997040638 backwards is 836040799
• The number of decimal digits it has is: 9
• The sum of 997040638's digits is 46
• More coming soon!