# 1642

## 1,642 is an even composite number composed of two prime numbers multiplied together.

What does the number 1642 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

1642 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 1642:

### 2 × 821

See below for interesting mathematical facts about the number 1642 from the Numbermatics database.

### Names of 1642

• Cardinal: 1642 can be written as One thousand, six hundred forty-two.

### Scientific notation

• Scientific notation: 1.642 × 103

### Factors of 1642

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 823

### Divisors of 1642

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 2466
• Sum of proper divisors (its aliquot sum) s(n): 824
• 1642 is a deficient number, because the sum of its proper divisors (824) is less than itself. Its deficiency is 818

### Bases of 1642

• Binary: 110011010102
• Base-36: 19M

### Squares and roots of 1642

• 1642 squared (16422) is 2696164
• 1642 cubed (16423) is 4427101288
• The square root of 1642 is 40.5215991787
• The cube root of 1642 is 11.7975289283

### Scales and comparisons

How big is 1642?
• 1,642 seconds is equal to 27 minutes, 22 seconds.
• To count from 1 to 1,642 would take you about twenty-seven minutes.

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 1642 cubic inches would be around 1 feet tall.

### Recreational maths with 1642

• 1642 backwards is 2461
• The number of decimal digits it has is: 4
• The sum of 1642's digits is 13
• More coming soon!

MLA style:
"Number 1642 - Facts about the integer". Numbermatics.com. 2021. Web. 28 November 2021.

APA style:
Numbermatics. (2021). Number 1642 - Facts about the integer. Retrieved 28 November 2021, from https://numbermatics.com/n/1642/

Chicago style:
Numbermatics. 2021. "Number 1642 - Facts about the integer". https://numbermatics.com/n/1642/

The information we have on file for 1642 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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