18964323440

Names of 18964323440

• Cardinal: 18964323440 can be written as Eighteen billion, nine hundred sixty-four million, three hundred twenty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.896432344 × 10¹⁰

Factors of 18964323440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 261131

Divisors of 18964323440

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 911 1822 3644 4555 7288 9110 14576 18220 36440 72880 260213 520426 1040852 1301065 2081704 2602130 4163408 5204260 10408520 20817040 237054043 474108086 948216172 1185270215 1896432344 2370540430 3792864688 4741080860 9482161720 18964323440
• Sum of all divisors σ(n): 44140621248
• Sum of proper divisors (its aliquot sum) s(n): 25176297808
• 18964323440 is an abundant number, because the sum of its proper divisors (25176297808) is greater than itself. Its abundance is 6211974368

Bases of 18964323440

• Binary: 10001101010010111001001110001110000₂
• Hexadecimal: 0x46A5C9C70
• Base-36: 8PMV9M8

Squares and roots of 18964323440

• 18964323440 squared (18964323440²) is 359645563536933433600
• 18964323440 cubed (18964323440³) is 6820434790675476020540163584000
• The square root of 18964323440 is 137711.0142290731
• The cube root of 18964323440 is 2666.7304375027

Scales and comparisons

• 18,964,323,440 seconds is equal to 603 years, 2 days, 11 hours, 37 minutes, 20 seconds.
• To count from 1 to 18,964,323,440 would take you about one thousand, two hundred six 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 18964323440 cubic inches would be around 222.2 feet tall.

Recreational maths with 18964323440

• 18964323440 backwards is 04432346981
• The number of decimal digits it has is: 11
• The sum of 18964323440's digits is 44
• More coming soon!