3991664

3,991,664 is an even composite number composed of three prime numbers multiplied together.

What does the number 3991664 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

3991664 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 3991664:

2⁴ × 317 × 787

(2 × 2 × 2 × 2 × 317 × 787)

See below for interesting mathematical facts about the number 3991664 from the Numbermatics database.

Names of 3991664

Cardinal: 3991664 can be written as Three million, nine hundred ninety-one thousand, six hundred sixty-four.

Scientific notation

Scientific notation: 3.991664 × 10⁶

Factors of 3991664

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 1106

Divisors of 3991664

Number of divisors d(n): 20
Complete list of divisors:
1 2 4 8 16 317 634 787 1268 1574 2536 3148 5072 6296 12592 249479 498958 997916 1995832 3991664
Sum of all divisors σ(n): 7768104
Sum of proper divisors (its aliquot sum) s(n): 3776440
3991664 is a deficient number, because the sum of its proper divisors (3776440) is less than itself. Its deficiency is 215224

Bases of 3991664

Binary: 1111001110100001110000₂
Hexadecimal: 0x3CE870
Base-36: 2DJZK

Squares and roots of 3991664

3991664 squared (3991664²) is 15933381488896
3991664 cubed (3991664³) is 63600705287492562944
The square root of 3991664 is 1997.9149131031
The cube root of 3991664 is 158.6297570461

Scales and comparisons

How big is 3991664?

3,991,664 seconds is equal to 6 weeks, 4 days, 4 hours, 47 minutes, 44 seconds.
To count from 1 to 3,991,664 would take you about 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 3991664 cubic inches would be around 13.2 feet tall.

Recreational maths with 3991664

3991664 backwards is 4661993
The number of decimal digits it has is: 7
The sum of 3991664's digits is 38
More coming soon!

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The information we have on file for 3991664 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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