1397987516

Names of 1397987516

• Cardinal: 1397987516 can be written as One billion, three hundred ninety-seven million, nine hundred eighty-seven thousand, five hundred sixteen.

Scientific notation

• Scientific notation: 1.397987516 × 10⁹

Factors of 1397987516

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 349496881

Divisors of 1397987516

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 349496879 698993758 1397987516
• Sum of all divisors σ(n): 2446478160
• Sum of proper divisors (its aliquot sum) s(n): 1048490644
• 1397987516 is a deficient number, because the sum of its proper divisors (1048490644) is less than itself. Its deficiency is 349496872

Bases of 1397987516

• Binary: 1010011010100111001100010111100₂
• Hexadecimal: 0x535398BC
• Base-36: N4BQ2K

Squares and roots of 1397987516

• 1397987516 squared (1397987516²) is 1954369094891850256
• 1397987516 cubed (1397987516³) is 2732183596315026028029404096
• The square root of 1397987516 is 37389.6712475517
• The cube root of 1397987516 is 1118.1526508387

Scales and comparisons

• 1,397,987,516 seconds is equal to 44 years, 23 weeks, 3 days, 9 hours, 51 minutes, 56 seconds.
• To count from 1 to 1,397,987,516 would take you about eighty-eight 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 1397987516 cubic inches would be around 93.2 feet tall.

Recreational maths with 1397987516

• 1397987516 backwards is 6157897931
• The number of decimal digits it has is: 10
• The sum of 1397987516's digits is 56
• More coming soon!