6440391

6,440,391 is an odd composite number composed of three prime numbers multiplied together.

What does the number 6440391 look like?

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

6440391 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 6440391:

3⁴ × 23 × 3457

(3 × 3 × 3 × 3 × 23 × 3457)

See below for interesting mathematical facts about the number 6440391 from the Numbermatics database.

Names of 6440391

Cardinal: 6440391 can be written as Six million, four hundred forty thousand, three hundred ninety-one.

Scientific notation

Scientific notation: 6.440391 × 10⁶

Factors of 6440391

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 3483

Divisors of 6440391

Number of divisors d(n): 20
Complete list of divisors:
1 3 9 23 27 69 81 207 621 1863 3457 10371 31113 79511 93339 238533 280017 715599 2146797 6440391
Sum of all divisors σ(n): 10042032
Sum of proper divisors (its aliquot sum) s(n): 3601641
6440391 is a deficient number, because the sum of its proper divisors (3601641) is less than itself. Its deficiency is 2838750

Bases of 6440391

Binary: 11000100100010111000111₂
Hexadecimal: 0x6245C7
Base-36: 3U1FR

Squares and roots of 6440391

6440391 squared (6440391²) is 41478636232881
6440391 cubed (6440391³) is 267138635486520696471
The square root of 6440391 is 2537.7925447129
The cube root of 6440391 is 186.0533145813

Scales and comparisons

How big is 6440391?

6,440,391 seconds is equal to 10 weeks, 4 days, 12 hours, 59 minutes, 51 seconds.
To count from 1 to 6,440,391 would take you about fifteen 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 6440391 cubic inches would be around 15.5 feet tall.

Recreational maths with 6440391

6440391 backwards is 1930446
6440391 is a Harshad number.
The number of decimal digits it has is: 7
The sum of 6440391's digits is 27
More coming soon!

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The information we have on file for 6440391 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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