# 6421

## 6,421 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 6421 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

6421 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 6421:

### 6421

See below for interesting mathematical facts about the number 6421 from the Numbermatics database.

### Names of 6421

• Cardinal: 6421 can be written as Six thousand, four hundred twenty-one.

### Scientific notation

• Scientific notation: 6.421 × 103

### Factors of 6421

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 6421

### Divisors of 6421

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 6422
• Sum of proper divisors (its aliquot sum) s(n): 1
• 6421 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 6420

### Bases of 6421

• Binary: 11001000101012
• Base-36: 4YD

### Squares and roots of 6421

• 6421 squared (64212) is 41229241
• 6421 cubed (64213) is 264732956461
• The square root of 6421 is 80.1311425101
• The cube root of 6421 is 18.5866401153

### Scales and comparisons

How big is 6421?
• 6,421 seconds is equal to 1 hour, 47 minutes, 1 second.
• To count from 1 to 6,421 would take you about forty-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 6421 cubic inches would be around 1.5 feet tall.

### Recreational maths with 6421

• 6421 backwards is 1246
• The number of decimal digits it has is: 4
• The sum of 6421's digits is 13
• More coming soon!

MLA style:
"Number 6421 - Facts about the integer". Numbermatics.com. 2021. Web. 24 October 2021.

APA style:
Numbermatics. (2021). Number 6421 - Facts about the integer. Retrieved 24 October 2021, from https://numbermatics.com/n/6421/

Chicago style:
Numbermatics. 2021. "Number 6421 - Facts about the integer". https://numbermatics.com/n/6421/

The information we have on file for 6421 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!

Keywords: Divisors of 6421, math, Factors of 6421, curriculum, school, college, exams, university, Prime factorization of 6421, STEM, science, technology, engineering, physics, economics, calculator, six thousand, four hundred twenty-one.

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