18031812808465815

Names of 18031812808465815

• Cardinal: 18031812808465815 can be written as Eighteen quadrillion, thirty-one trillion, eight hundred twelve billion, eight hundred eight million, four hundred sixty-five thousand, eight hundred fifteen.

Scientific notation

• Scientific notation: 1.8031812808465815 × 10¹⁶

Factors of 18031812808465815

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1202120853897729

Divisors of 18031812808465815

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 1202120853897721 3606362561693163 6010604269488605 18031812808465815
• Sum of all divisors σ(n): 28850900493545328
• Sum of proper divisors (its aliquot sum) s(n): 10819087685079513
• 18031812808465815 is a deficient number, because the sum of its proper divisors (10819087685079513) is less than itself. Its deficiency is 7212725123386302

Bases of 18031812808465815

• Binary: 1000000000011111101011010010101000110101101110110010111₂
• Hexadecimal: 0x400FD6951ADD97
• Base-36: 4XJQSG2JTEF

Squares and roots of 18031812808465815

• 18031812808465815 squared (18031812808465815²) is 325146273159551822630534023614225
• 18031812808465815 cubed (18031812808465815³) is 5862976732983331194080824291145399012203660218375
• The square root of 18031812808465815 is 134282585.6485710325
• The cube root of 18031812808465815 is 262228.4432632767

Scales and comparisons

• 18,031,812,808,465,815 seconds is equal to 573,355,871 years, 13 weeks, 30 minutes, 15 seconds.
• To count from 1 to 18,031,812,808,465,815 would take you about one billion, seven hundred twenty million, sixty-seven thousand, six hundred thirteen 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 18031812808465815 cubic inches would be around 21852.4 feet tall.

Recreational maths with 18031812808465815

• 18031812808465815 backwards is 51856480821813081
• The number of decimal digits it has is: 17
• The sum of 18031812808465815's digits is 69
• More coming soon!