# 30813

## 30,813 is an odd composite number composed of two prime numbers multiplied together.

What does the number 30813 look like?

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

30813 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 30813:

### 3 × 10271

See below for interesting mathematical facts about the number 30813 from the Numbermatics database.

### Names of 30813

• Cardinal: 30813 can be written as Thirty thousand, eight hundred thirteen.

### Scientific notation

• Scientific notation: 3.0813 × 104

### Factors of 30813

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10274

### Divisors of 30813

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 41088
• Sum of proper divisors (its aliquot sum) s(n): 10275
• 30813 is a deficient number, because the sum of its proper divisors (10275) is less than itself. Its deficiency is 20538

### Bases of 30813

• Binary: 1111000010111012
• Base-36: NRX

### Squares and roots of 30813

• 30813 squared (308132) is 949440969
• 30813 cubed (308133) is 29255124577797
• The square root of 30813 is 175.5363210279
• The cube root of 30813 is 31.3505136907

### Scales and comparisons

How big is 30813?
• 30,813 seconds is equal to 8 hours, 33 minutes, 33 seconds.
• To count from 1 to 30,813 would take you about eight 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 30813 cubic inches would be around 2.6 feet tall.

### Recreational maths with 30813

• 30813 backwards is 31803
• The number of decimal digits it has is: 5
• The sum of 30813's digits is 15
• More coming soon!