139731297

Names of 139731297

• Cardinal: 139731297 can be written as One hundred thirty-nine million, seven hundred thirty-one thousand, two hundred ninety-seven.

Scientific notation

• Scientific notation: 1.39731297 × 10⁸

Factors of 139731297

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 763623

Divisors of 139731297

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 61 183 763559 2290677 46577099 139731297
• Sum of all divisors σ(n): 189362880
• Sum of proper divisors (its aliquot sum) s(n): 49631583
• 139731297 is a deficient number, because the sum of its proper divisors (49631583) is less than itself. Its deficiency is 90099714

Bases of 139731297

• Binary: 1000010101000010000101100001₂
• Hexadecimal: 0x8542161
• Base-36: 2B6XCX

Squares and roots of 139731297

• 139731297 squared (139731297²) is 19524835361302209
• 139731297 cubed (139731297³) is 2728230568746221272535073
• The square root of 139731297 is 11820.7993384543
• The cube root of 139731297 is 518.9169977265

Scales and comparisons

• 139,731,297 seconds is equal to 4 years, 23 weeks, 6 hours, 14 minutes, 57 seconds.
• To count from 1 to 139,731,297 would take you about six 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 139731297 cubic inches would be around 43.2 feet tall.

Recreational maths with 139731297

• 139731297 backwards is 792137931
• The number of decimal digits it has is: 9
• The sum of 139731297's digits is 42
• More coming soon!