18550890918789121

Names of 18550890918789121

• Cardinal: 18550890918789121 can be written as Eighteen quadrillion, five hundred fifty trillion, eight hundred ninety billion, nine hundred eighteen million, seven hundred eighty-nine thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 1.8550890918789121 × 10¹⁶

Factors of 18550890918789121

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 5416016

Divisors of 18550890918789121

• Number of divisors d(n): 16
• Complete list of divisors:
  1 29 443 12847 281243 5134301 8156047 124590649 148894729 2274495343 3613128821 65960364947 1443986216143 41875600268147 639685893751349 18550890918789121
• Sum of all divisors σ(n): 19233968534084160
• Sum of proper divisors (its aliquot sum) s(n): 683077615295039
• 18550890918789121 is a deficient number, because the sum of its proper divisors (683077615295039) is less than itself. Its deficiency is 17867813303494082

Bases of 18550890918789121

• Binary: 1000001111001111110111111011111011110110100000000000001₂
• Hexadecimal: 0x41E7EFDF7B4001
• Base-36: 52NQPMZ8JK1

Squares and roots of 18550890918789121

• 18550890918789121 squared (18550890918789121²) is 344135553880812677908828867952641
• 18550890918789121 cubed (18550890918789121³) is 6384021121320032153492133459722962126122094018561
• The square root of 18550890918789121 is 136201655.3452604739
• The cube root of 18550890918789121 is 264720.9161967475

Scales and comparisons

• 18,550,890,918,789,121 seconds is equal to 589,860,949 years, 28 weeks, 2 days, 3 hours, 12 minutes, 1 second.
• To count from 1 to 18,550,890,918,789,121 would take you about one billion, seven hundred sixty-nine million, five hundred eighty-two thousand, eight hundred forty-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 18550890918789121 cubic inches would be around 22060.1 feet tall.

Recreational maths with 18550890918789121

• 18550890918789121 backwards is 12198781909805581
• The number of decimal digits it has is: 17
• The sum of 18550890918789121's digits is 82
• More coming soon!