18198427923

Names of 18198427923

• Cardinal: 18198427923 can be written as Eighteen billion, one hundred ninety-eight million, four hundred twenty-seven thousand, nine hundred twenty-three.

Scientific notation

• Scientific notation: 1.8198427923 × 10¹⁰

Factors of 18198427923

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1919

Divisors of 18198427923

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 13 27 39 97 117 291 351 373 873 1119 1261 1433 2619 3357 3783 4299 4849 10071 11349 12897 14547 18629 34047 36181 38691 43641 55887 108543 130923 139001 167661 325629 417003 470353 502983 534509 976887 1251009 1411059 1603527 1807013 3753027 4233177 4810581 5421039 6948617 12699531 14431743 16263117 20845851 48789351 51847373 62537553 155542119 187612659 466626357 674015849 1399879071 2022047547 6066142641 18198427923
• Sum of all divisors σ(n): 29433022080
• Sum of proper divisors (its aliquot sum) s(n): 11234594157
• 18198427923 is a deficient number, because the sum of its proper divisors (11234594157) is less than itself. Its deficiency is 6963833766

Bases of 18198427923

• Binary: 10000111100101101011111100100010011₂
• Hexadecimal: 0x43CB5F913
• Base-36: 8CYVGUR

Squares and roots of 18198427923

• 18198427923 squared (18198427923²) is 331182778868626093929
• 18198427923 cubed (18198427923³) is 6027005930579539456403934379467
• The square root of 18198427923 is 134901.5490014847
• The cube root of 18198427923 is 2630.3363756509

Scales and comparisons

• 18,198,427,923 seconds is equal to 578 years, 33 weeks, 6 days, 22 hours, 52 minutes, 3 seconds.
• To count from 1 to 18,198,427,923 would take you about one thousand, one hundred fifty-seven 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 18198427923 cubic inches would be around 219.2 feet tall.

Recreational maths with 18198427923

• 18198427923 backwards is 32972489181
• The number of decimal digits it has is: 11
• The sum of 18198427923's digits is 54
• More coming soon!