11991988

11,991,988 is an even composite number composed of two prime numbers multiplied together.

What does the number 11991988 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

11991988 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 11991988:

2² × 2997997

(2 × 2 × 2997997)

See below for interesting mathematical facts about the number 11991988 from the Numbermatics database.

Names of 11991988

Cardinal: 11991988 can be written as Eleven million, nine hundred ninety-one thousand, nine hundred eighty-eight.

Scientific notation

Scientific notation: 1.1991988 × 10⁷

Factors of 11991988

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 2997999

Divisors of 11991988

Number of divisors d(n): 6
Complete list of divisors:
1 2 4 2997997 5995994 11991988
Sum of all divisors σ(n): 20985986
Sum of proper divisors (its aliquot sum) s(n): 8993998
11991988 is a deficient number, because the sum of its proper divisors (8993998) is less than itself. Its deficiency is 2997990

Bases of 11991988

Binary: 101101101111101110110100₂
Hexadecimal: 0xB6FBB4
Base-36: 7512S

Squares and roots of 11991988

11991988 squared (11991988²) is 143807776192144
11991988 cubed (11991988³) is 1724541126402876542272
The square root of 11991988 is 3462.9449894563
The cube root of 11991988 is 228.8918846639

Scales and comparisons

How big is 11991988?

11,991,988 seconds is equal to 19 weeks, 5 days, 19 hours, 6 minutes, 28 seconds.
To count from 1 to 11,991,988 would take you about twenty-nine weeks!

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 11991988 cubic inches would be around 19.1 feet tall.

Recreational maths with 11991988

11991988 backwards is 88919911
The number of decimal digits it has is: 8
The sum of 11991988's digits is 46
More coming soon!

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The information we have on file for 11991988 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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