991664

991,664 is an even composite number composed of two prime numbers multiplied together.

What does the number 991664 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 10 divisors.

991664 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of ten divisors.

Prime factorization of 991664:

2⁴ × 61979

(2 × 2 × 2 × 2 × 61979)

See below for interesting mathematical facts about the number 991664 from the Numbermatics database.

Names of 991664

Cardinal: 991664 can be written as Nine hundred ninety-one thousand, six hundred sixty-four.

Scientific notation

Scientific notation: 9.91664 × 10⁵

Factors of 991664

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 5
Sum of prime factors: 61981

Divisors of 991664

Number of divisors d(n): 10
Complete list of divisors:
1 2 4 8 16 61979 123958 247916 495832 991664
Sum of all divisors σ(n): 1921380
Sum of proper divisors (its aliquot sum) s(n): 929716
991664 is a deficient number, because the sum of its proper divisors (929716) is less than itself. Its deficiency is 61948

Bases of 991664

Binary: 11110010000110110000₂
Hexadecimal: 0xF21B0
Base-36: L968

Squares and roots of 991664

991664 squared (991664²) is 983397488896
991664 cubed (991664³) is 975199887428562944
The square root of 991664 is 995.8232774945
The cube root of 991664 is 99.7213576389

Scales and comparisons

How big is 991664?

991,664 seconds is equal to 1 week, 4 days, 11 hours, 27 minutes, 44 seconds.
To count from 1 to 991,664 would take you about four days!

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 991664 cubic inches would be around 8.3 feet tall.

Recreational maths with 991664

991664 backwards is 466199
The number of decimal digits it has is: 6
The sum of 991664's digits is 35
More coming soon!

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The information we have on file for 991664 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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