640168

640,168 is an even composite number composed of two prime numbers multiplied together.

What does the number 640168 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

640168 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 640168:

2³ × 80021

(2 × 2 × 2 × 80021)

See below for interesting mathematical facts about the number 640168 from the Numbermatics database.

Names of 640168

Cardinal: 640168 can be written as Six hundred forty thousand, one hundred sixty-eight.

Scientific notation

Scientific notation: 6.40168 × 10⁵

Factors of 640168

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 4
Sum of prime factors: 80023

Divisors of 640168

Number of divisors d(n): 8
Complete list of divisors:
1 2 4 8 80021 160042 320084 640168
Sum of all divisors σ(n): 1200330
Sum of proper divisors (its aliquot sum) s(n): 560162
640168 is a deficient number, because the sum of its proper divisors (560162) is less than itself. Its deficiency is 80006

Bases of 640168

Binary: 10011100010010101000₂
Hexadecimal: 0x9C4A8
Base-36: DPYG

Squares and roots of 640168

640168 squared (640168²) is 409815068224
640168 cubed (640168³) is 262350492594821632
The square root of 640168 is 800.1049931103
The cube root of 640168 is 86.1849274629

Scales and comparisons

How big is 640168?

640,168 seconds is equal to 1 week, 9 hours, 49 minutes, 28 seconds.
To count from 1 to 640,168 would take you about nine hours!

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 640168 cubic inches would be around 7.2 feet tall.

Recreational maths with 640168

640168 backwards is 861046
The number of decimal digits it has is: 6
The sum of 640168's digits is 25
More coming soon!

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The information we have on file for 640168 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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