139435290978

Names of 139435290978

• Cardinal: 139435290978 can be written as One hundred thirty-nine billion, four hundred thirty-five million, two hundred ninety thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 1.39435290978 × 10¹¹

Factors of 139435290978

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 5378386

Divisors of 139435290978

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 29 58 87 149 174 298 447 894 4321 8642 12963 25926 5378203 10756406 16134609 32269218 155967887 311935774 467903661 801352247 935807322 1602704494 2404056741 4808113482 23239215163 46478430326 69717645489 139435290978
• Sum of all divisors σ(n): 290423016000
• Sum of proper divisors (its aliquot sum) s(n): 150987725022
• 139435290978 is an abundant number, because the sum of its proper divisors (150987725022) is greater than itself. Its abundance is 11552434044

Bases of 139435290978

• Binary: 10000001110110111111011011000101100010₂
• Hexadecimal: 0x2076FDB162
• Base-36: 1S206736

Squares and roots of 139435290978

• 139435290978 squared (139435290978²) is 19442200370119528196484
• 139435290978 cubed (139435290978³) is 2710928865860195710716822096521352
• The square root of 139435290978 is 373410.3519962991
• The cube root of 139435290978 is 5185.5031502671

Scales and comparisons

• 139,435,290,978 seconds is equal to 4,433 years, 31 weeks, 5 days, 9 hours, 16 minutes, 18 seconds.
• To count from 1 to 139,435,290,978 would take you about eight thousand, eight hundred sixty-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 139435290978 cubic inches would be around 432.1 feet tall.

Recreational maths with 139435290978

• 139435290978 backwards is 879092534931
• The number of decimal digits it has is: 12
• The sum of 139435290978's digits is 60
• More coming soon!