18042789194218749

Names of 18042789194218749

• Cardinal: 18042789194218749 can be written as Eighteen quadrillion, forty-two trillion, seven hundred eighty-nine billion, one hundred ninety-four million, two hundred eighteen thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 1.8042789194218749 × 10¹⁶

Factors of 18042789194218749

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 25071234069

Divisors of 18042789194218749

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 17 51 103 137 309 411 1751 2329 5253 6987 14111 42333 239887 719661 25071233809 75213701427 426210974753 1278632924259 2582337082327 3434759031833 7747011246981 10304277095499 43899730399559 58390903541161 131699191198677 175172710623483 353780180278799 1061340540836397 6014263064739583 18042789194218749
• Sum of all divisors σ(n): 25907209030160640
• Sum of proper divisors (its aliquot sum) s(n): 7864419835941891
• 18042789194218749 is a deficient number, because the sum of its proper divisors (7864419835941891) is less than itself. Its deficiency is 10178369358276858

Bases of 18042789194218749

• Binary: 1000000000110011101001000111000101011011011110011111101₂
• Hexadecimal: 0x4019D238ADBCFD
• Base-36: 4XNMUXF84QL

Squares and roots of 18042789194218749

• 18042789194218749 squared (18042789194218749²) is 325542241907016853822844463125001
• 18042789194218749 cubed (18042789194218749³) is 5873690044541669682805613699371392917503324843749
• The square root of 18042789194218749 is 134323449.9043958779
• The cube root of 18042789194218749 is 262281.6406639483

Scales and comparisons

• 18,042,789,194,218,749 seconds is equal to 573,704,886 years, 18 weeks, 6 days, 18 hours, 59 minutes, 9 seconds.
• To count from 1 to 18,042,789,194,218,749 would take you about one billion, seven hundred twenty-one million, one hundred fourteen thousand, six hundred fifty-nine 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 18042789194218749 cubic inches would be around 21856.8 feet tall.

Recreational maths with 18042789194218749

• 18042789194218749 backwards is 94781249198724081
• The number of decimal digits it has is: 17
• The sum of 18042789194218749's digits is 84
• More coming soon!