18938789824

Names of 18938789824

• Cardinal: 18938789824 can be written as Eighteen billion, nine hundred thirty-eight million, seven hundred eighty-nine thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 1.8938789824 × 10¹⁰

Factors of 18938789824

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8383

Divisors of 18938789824

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 31 32 62 64 124 248 496 992 1367 1984 2734 5468 6983 10936 13966 21872 27932 42377 43744 55864 84754 87488 111728 169508 216473 223456 339016 432946 446912 678032 865892 1356064 1731784 2712128 3463568 6927136 9545761 13854272 19091522 38183044 76366088 152732176 295918591 305464352 591837182 610928704 1183674364 2367348728 4734697456 9469394912 18938789824
• Sum of all divisors σ(n): 38827911168
• Sum of proper divisors (its aliquot sum) s(n): 19889121344
• 18938789824 is an abundant number, because the sum of its proper divisors (19889121344) is greater than itself. Its abundance is 950331520

Bases of 18938789824

• Binary: 10001101000110101101111111111000000₂
• Hexadecimal: 0x468D6FFC0
• Base-36: 8P7NZR4

Squares and roots of 18938789824

• 18938789824 squared (18938789824²) is 358677759997645950976
• 18938789824 cubed (18938789824³) is 6792922711138531400299071668224
• The square root of 18938789824 is 137618.2757630685
• The cube root of 18938789824 is 2665.5330689543

Scales and comparisons

• 18,938,789,824 seconds is equal to 602 years, 10 weeks, 22 hours, 57 minutes, 4 seconds.
• To count from 1 to 18,938,789,824 would take you about one thousand, two hundred four 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 18938789824 cubic inches would be around 222.1 feet tall.

Recreational maths with 18938789824

• 18938789824 backwards is 42898783981
• The number of decimal digits it has is: 11
• The sum of 18938789824's digits is 67
• More coming soon!