642540

642,540 is an even composite number composed of four prime numbers multiplied together.

What does the number 642540 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

642540 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 642540:

2² × 3 × 5 × 10709

(2 × 2 × 3 × 5 × 10709)

See below for interesting mathematical facts about the number 642540 from the Numbermatics database.

Names of 642540

Cardinal: 642540 can be written as Six hundred forty-two thousand, five hundred forty.

Scientific notation

Scientific notation: 6.4254 × 10⁵

Factors of 642540

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 10719

Divisors of 642540

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 30 60 10709 21418 32127 42836 53545 64254 107090 128508 160635 214180 321270 642540
Sum of all divisors σ(n): 1799280
Sum of proper divisors (its aliquot sum) s(n): 1156740
642540 is an abundant number, because the sum of its proper divisors (1156740) is greater than itself. Its abundance is 514200

Bases of 642540

Binary: 10011100110111101100₂
Hexadecimal: 0x9CDEC
Base-36: DRSC

Squares and roots of 642540

642540 squared (642540²) is 412857651600
642540 cubed (642540³) is 265277555459064000
The square root of 642540 is 801.5859280201
The cube root of 642540 is 86.2912426155

Scales and comparisons

How big is 642540?

642,540 seconds is equal to 1 week, 10 hours, 29 minutes.
To count from 1 to 642,540 would take you about ten 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 642540 cubic inches would be around 7.2 feet tall.

Recreational maths with 642540

642540 backwards is 045246
The number of decimal digits it has is: 6
The sum of 642540's digits is 21
More coming soon!

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The information we have on file for 642540 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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