66388491

66,388,491 is an odd composite number composed of four prime numbers multiplied together.

What does the number 66388491 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

66388491 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 66388491:

3⁴ × 13 × 67 × 941

(3 × 3 × 3 × 3 × 13 × 67 × 941)

See below for interesting mathematical facts about the number 66388491 from the Numbermatics database.

Names of 66388491

Cardinal: 66388491 can be written as Sixty-six million, three hundred eighty-eight thousand, four hundred ninety-one.

Scientific notation

Scientific notation: 6.6388491 × 10⁷

Factors of 66388491

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 1024

Divisors of 66388491

Number of divisors d(n): 40
Complete list of divisors:
1 3 9 13 27 39 67 81 117 201 351 603 871 941 1053 1809 2613 2823 5427 7839 8469 12233 23517 25407 36699 63047 70551 76221 110097 189141 330291 567423 819611 990873 1702269 2458833 5106807 7376499 22129497 66388491
Sum of all divisors σ(n): 108510864
Sum of proper divisors (its aliquot sum) s(n): 42122373
66388491 is a deficient number, because the sum of its proper divisors (42122373) is less than itself. Its deficiency is 24266118

Bases of 66388491

Binary: 11111101010000001000001011₂
Hexadecimal: 0x3F5020B
Base-36: 13IXOR

Squares and roots of 66388491

66388491 squared (66388491²) is 4407431737257081
66388491 cubed (66388491³) is 292602742222006086654771
The square root of 66388491 is 8147.9132911439
The cube root of 66388491 is 404.9153732645

Scales and comparisons

How big is 66388491?

66,388,491 seconds is equal to 2 years, 5 weeks, 5 days, 9 hours, 14 minutes, 51 seconds.
To count from 1 to 66,388,491 would take you about three 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 66388491 cubic inches would be around 33.7 feet tall.

Recreational maths with 66388491

66388491 backwards is 19488366
The number of decimal digits it has is: 8
The sum of 66388491's digits is 45
More coming soon!

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The information we have on file for 66388491 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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