139353990

Names of 139353990

• Cardinal: 139353990 can be written as One hundred thirty-nine million, three hundred fifty-three thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.3935399 × 10⁸

Factors of 139353990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 5237

Divisors of 139353990

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 29 30 31 58 62 87 93 145 155 174 186 290 310 435 465 870 899 930 1798 2697 4495 5167 5394 8990 10334 13485 15501 25835 26970 31002 51670 77505 149843 155010 160177 299686 320354 449529 480531 749215 800885 899058 961062 1498430 1601770 2247645 2402655 4495290 4645133 4805310 9290266 13935399 23225665 27870798 46451330 69676995 139353990
• Sum of all divisors σ(n): 357212160
• Sum of proper divisors (its aliquot sum) s(n): 217858170
• 139353990 is an abundant number, because the sum of its proper divisors (217858170) is greater than itself. Its abundance is 78504180

Bases of 139353990

• Binary: 1000010011100101111110000110₂
• Hexadecimal: 0x84E5F86
• Base-36: 2AYU86

Squares and roots of 139353990

• 139353990 squared (139353990²) is 19419534528920100
• 139353990 cubed (139353990³) is 2706189620547786326199000
• The square root of 139353990 is 11804.8290966027
• The cube root of 139353990 is 518.4495111723

Scales and comparisons

• 139,353,990 seconds is equal to 4 years, 22 weeks, 2 days, 21 hours, 26 minutes, 30 seconds.
• To count from 1 to 139,353,990 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 139353990 cubic inches would be around 43.2 feet tall.

Recreational maths with 139353990

• 139353990 backwards is 099353931
• The number of decimal digits it has is: 9
• The sum of 139353990's digits is 42
• More coming soon!