# 8135813

## 8,135,813 is an odd composite number composed of three prime numbers multiplied together.

What does the number 8135813 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

8135813 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

## Prime factorization of 8135813:

### 72 × 23 × 7219

(7 × 7 × 23 × 7219)

See below for interesting mathematical facts about the number 8135813 from the Numbermatics database.

### Names of 8135813

• Cardinal: 8135813 can be written as Eight million, one hundred thirty-five thousand, eight hundred thirteen.

### Scientific notation

• Scientific notation: 8.135813 × 106

### Factors of 8135813

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 7249

### Divisors of 8135813

• Number of divisors d(n): 12
• Complete list of divisors:
• Sum of all divisors σ(n): 9876960
• Sum of proper divisors (its aliquot sum) s(n): 1741147
• 8135813 is a deficient number, because the sum of its proper divisors (1741147) is less than itself. Its deficiency is 6394666

### Bases of 8135813

• Binary: 111110000100100100001012
• Base-36: 4UDMT

### Squares and roots of 8135813

• 8135813 squared (81358132) is 66191453170969
• 8135813 cubed (81358133) is 538521285197260812797
• The square root of 8135813 is 2852.3346577849
• The cube root of 8135813 is 201.1254301559

### Scales and comparisons

How big is 8135813?
• 8,135,813 seconds is equal to 13 weeks, 3 days, 3 hours, 56 minutes, 53 seconds.
• To count from 1 to 8,135,813 would take you about twenty weeks!

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 8135813 cubic inches would be around 16.8 feet tall.

### Recreational maths with 8135813

• 8135813 backwards is 3185318
• The number of decimal digits it has is: 7
• The sum of 8135813's digits is 29
• More coming soon!