642628

642,628 is an even composite number composed of four prime numbers multiplied together.

What does the number 642628 look like?

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

642628 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 642628:

2² × 7 × 59 × 389

(2 × 2 × 7 × 59 × 389)

See below for interesting mathematical facts about the number 642628 from the Numbermatics database.

Names of 642628

Cardinal: 642628 can be written as Six hundred forty-two thousand, six hundred twenty-eight.

Scientific notation

Scientific notation: 6.42628 × 10⁵

Factors of 642628

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 457

Divisors of 642628

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 7 14 28 59 118 236 389 413 778 826 1556 1652 2723 5446 10892 22951 45902 91804 160657 321314 642628
Sum of all divisors σ(n): 1310400
Sum of proper divisors (its aliquot sum) s(n): 667772
642628 is an abundant number, because the sum of its proper divisors (667772) is greater than itself. Its abundance is 25144

Bases of 642628

Binary: 10011100111001000100₂
Hexadecimal: 0x9CE44
Base-36: DRUS

Squares and roots of 642628

642628 squared (642628²) is 412970746384
642628 cubed (642628³) is 265386564807257152
The square root of 642628 is 801.6408173241
The cube root of 642628 is 86.2951818165

Scales and comparisons

How big is 642628?

642,628 seconds is equal to 1 week, 10 hours, 30 minutes, 28 seconds.
To count from 1 to 642,628 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 642628 cubic inches would be around 7.2 feet tall.

Recreational maths with 642628

642628 backwards is 826246
642628 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 642628's digits is 28
More coming soon!

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The information we have on file for 642628 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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