18165917486289429

Names of 18165917486289429

• Cardinal: 18165917486289429 can be written as Eighteen quadrillion, one hundred sixty-five trillion, nine hundred seventeen billion, four hundred eighty-six million, two hundred eighty-nine thousand, four hundred twenty-nine.

Scientific notation

• Scientific notation: 1.8165917486289429 × 10¹⁶

Factors of 18165917486289429

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 673

Divisors of 18165917486289429

• Number of divisors d(n): 36
• Complete list of divisors:
  1 3 9 17 51 153 653 1959 5877 11101 33303 99909 426409 1279227 3837681 7248953 21746859 65240577 278445077 835335231 2506005693 4733566309 14200698927 42602096781 181824635281 545473905843 1636421717529 3091018799777 9273056399331 27819169197993 118731486838493 356194460515479 1068583381546437 2018435276254381 6055305828763143 18165917486289429
• Sum of all divisors σ(n): 27825780140943876
• Sum of proper divisors (its aliquot sum) s(n): 9659862654654447
• 18165917486289429 is a deficient number, because the sum of its proper divisors (9659862654654447) is less than itself. Its deficiency is 8506054831634982

Bases of 18165917486289429

• Binary: 1000000100010011100111001000010110010100001001000010101₂
• Hexadecimal: 0x4089CE42CA1215
• Base-36: 4YVA3A98VF9

Squares and roots of 18165917486289429

• 18165917486289429 squared (18165917486289429²) is 330000558118676046860194757146041
• 18165917486289429 cubed (18165917486289429³) is 5994762909213328194362697625771488965938947500589
• The square root of 18165917486289429 is 134780998.2389558837
• The cube root of 18165917486289429 is 262876.9127520179

Scales and comparisons

• 18,165,917,486,289,429 seconds is equal to 577,619,985 years, 9 weeks, 6 days, 19 hours, 57 minutes, 9 seconds.
• To count from 1 to 18,165,917,486,289,429 would take you about one billion, seven hundred thirty-two million, eight hundred fifty-nine thousand, nine 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 18165917486289429 cubic inches would be around 21906.4 feet tall.

Recreational maths with 18165917486289429

• 18165917486289429 backwards is 92498268471956181
• The number of decimal digits it has is: 17
• The sum of 18165917486289429's digits is 90
• More coming soon!