# 399424

## 399,424 is an even composite number composed of two prime numbers multiplied together.

What does the number 399424 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 21 divisors.

399424 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of twenty-one divisors.

## Prime factorization of 399424:

### 26 × 792

(2 × 2 × 2 × 2 × 2 × 2 × 79 × 79)

See below for interesting mathematical facts about the number 399424 from the Numbermatics database.

### Names of 399424

• Cardinal: 399424 can be written as Three hundred ninety-nine thousand, four hundred twenty-four.

### Scientific notation

• Scientific notation: 3.99424 × 105

### Factors of 399424

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 81

### Divisors of 399424

• Number of divisors d(n): 21
• Complete list of divisors:
• Sum of all divisors σ(n): 802767
• Sum of proper divisors (its aliquot sum) s(n): 403343
• 399424 is an abundant number, because the sum of its proper divisors (403343) is greater than itself. Its abundance is 3919

### Bases of 399424

• Binary: 11000011000010000002
• Base-36: 8K74

### Squares and roots of 399424

• 399424 squared (3994242) is 159539531776
• 399424 cubed (3994243) is 63723917940097024
• 399424 is a perfect square number. Its square root is 632
• The cube root of 399424 is 73.6452462809

### Scales and comparisons

How big is 399424?
• 399,424 seconds is equal to 4 days, 14 hours, 57 minutes, 4 seconds.
• To count from 1 to 399,424 would take you about four days.

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 399424 cubic inches would be around 6.1 feet tall.

### Recreational maths with 399424

• 399424 backwards is 424993
• The number of decimal digits it has is: 6
• The sum of 399424's digits is 31
• More coming soon!

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"Number 399424 - Facts about the integer". Numbermatics.com. 2023. Web. 22 March 2023.

APA style:
Numbermatics. (2023). Number 399424 - Facts about the integer. Retrieved 22 March 2023, from https://numbermatics.com/n/399424/

Chicago style:
Numbermatics. 2023. "Number 399424 - Facts about the integer". https://numbermatics.com/n/399424/

The information we have on file for 399424 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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