18168074521

Names of 18168074521

• Cardinal: 18168074521 can be written as Eighteen billion, one hundred sixty-eight million, seventy-four thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 1.8168074521 × 10¹⁰

Factors of 18168074521

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 134789

Divisors of 18168074521

• Number of divisors d(n): 3
• Complete list of divisors:
  1 134789 18168074521
• Sum of all divisors σ(n): 18168209311
• Sum of proper divisors (its aliquot sum) s(n): 134790
• 18168074521 is a deficient number, because the sum of its proper divisors (134790) is less than itself. Its deficiency is 18167939731

Bases of 18168074521

• Binary: 10000111010111001101101000100011001₂
• Hexadecimal: 0x43AE6D119
• Base-36: 8CGSW0P

Squares and roots of 18168074521

• 18168074521 squared (18168074521²) is 330078931800609379441
• 18168074521 cubed (18168074521³) is 5996898630765547918895653322761
• 18168074521 is a perfect square number. Its square root is 134789
• The cube root of 18168074521 is 2628.8731707437

Scales and comparisons

• 18,168,074,521 seconds is equal to 577 years, 35 weeks, 5 days, 15 hours, 22 minutes, 1 second.
• To count from 1 to 18,168,074,521 would take you about one thousand, one hundred fifty-five 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 18168074521 cubic inches would be around 219.1 feet tall.

Recreational maths with 18168074521

• 18168074521 backwards is 12547086181
• The number of decimal digits it has is: 11
• The sum of 18168074521's digits is 43
• More coming soon!