# 900

## 900 is an even composite number composed of three prime numbers multiplied together.

What does the number 900 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 27 divisors.

900 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-seven divisors.

## Prime factorization of 900:

### 22 × 32 × 52

(2 × 2 × 3 × 3 × 5 × 5)

See below for interesting mathematical facts about the number 900 from the Numbermatics database.

### Names of 900

• Cardinal: 900 can be written as Nine hundred.

### Scientific notation

• Scientific notation: 9 × 102

### Factors of 900

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 10

### Divisors of 900

• Number of divisors d(n): 27
• Complete list of divisors:
• Sum of all divisors σ(n): 2821
• Sum of proper divisors (its aliquot sum) s(n): 1921
• 900 is an abundant number, because the sum of its proper divisors (1921) is greater than itself. Its abundance is 1021

### Bases of 900

• Binary: 11100001002
• Hexadecimal: 0x384
• Base-36: P0

### Squares and roots of 900

• 900 squared (9002) is 810000
• 900 cubed (9003) is 729000000
• 900 is a perfect square number. Its square root is 30
• The cube root of 900 is 9.6548938461

### Scales and comparisons

How big is 900?
• 900 seconds is equal to 15 minutes.
• To count from 1 to 900 would take you about 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 900 cubic inches would be around 0.8 feet tall.

### Recreational maths with 900

• 900 backwards is 009
• 900 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 900's digits is 9
• More coming soon!

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The information we have on file for 900 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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