18390442395

Names of 18390442395

• Cardinal: 18390442395 can be written as Eighteen billion, three hundred ninety million, four hundred forty-two thousand, three hundred ninety-five.

Scientific notation

• Scientific notation: 1.8390442395 × 10¹⁰

Factors of 18390442395

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 3376

Divisors of 18390442395

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 13 15 39 65 109 195 293 327 545 879 1417 1465 1635 2953 3809 4251 4395 7085 8859 11427 14765 19045 21255 31937 38389 44295 57135 95811 115167 159685 191945 321877 415181 479055 575835 865229 965631 1245543 1609385 2075905 2595687 4184401 4326145 4828155 6227715 11247977 12553203 12978435 20922005 33743931 56239885 62766015 94309961 168719655 282929883 471549805 1226029493 1414649415 3678088479 6130147465 18390442395
• Sum of all divisors σ(n): 32098872960
• Sum of proper divisors (its aliquot sum) s(n): 13708430565
• 18390442395 is a deficient number, because the sum of its proper divisors (13708430565) is less than itself. Its deficiency is 4682011830

Bases of 18390442395

• Binary: 10001001000001001111110000110011011₂
• Hexadecimal: 0x44827E19B
• Base-36: 8G57063

Squares and roots of 18390442395

• 18390442395 squared (18390442395²) is 338208371483813336025
• 18390442395 cubed (18390442395³) is 6219801573279829831100540779875
• The square root of 18390442395 is 135611.3652869847
• The cube root of 18390442395 is 2639.5550594559

Scales and comparisons

• 18,390,442,395 seconds is equal to 584 years, 39 weeks, 3 days, 8 hours, 13 minutes, 15 seconds.
• To count from 1 to 18,390,442,395 would take you about one thousand, one hundred sixty-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 18390442395 cubic inches would be around 220 feet tall.

Recreational maths with 18390442395

• 18390442395 backwards is 59324409381
• The number of decimal digits it has is: 11
• The sum of 18390442395's digits is 48
• More coming soon!