# 3561

## 3,561 is an odd composite number composed of two prime numbers multiplied together.

What does the number 3561 look like?

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

3561 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 3561:

### 3 × 1187

See below for interesting mathematical facts about the number 3561 from the Numbermatics database.

### Names of 3561

• Cardinal: 3561 can be written as Three thousand, five hundred sixty-one.

### Scientific notation

• Scientific notation: 3.561 × 103

### Factors of 3561

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1190

### Divisors of 3561

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 4752
• Sum of proper divisors (its aliquot sum) s(n): 1191
• 3561 is a deficient number, because the sum of its proper divisors (1191) is less than itself. Its deficiency is 2370

### Bases of 3561

• Binary: 1101111010012
• Base-36: 2QX

### Squares and roots of 3561

• 3561 squared (35612) is 12680721
• 3561 cubed (35613) is 45156047481
• The square root of 3561 is 59.6741149913
• The cube root of 3561 is 15.2706430105

### Scales and comparisons

How big is 3561?
• 3,561 seconds is equal to 59 minutes, 21 seconds.
• To count from 1 to 3,561 would take you about fifty-nine 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 3561 cubic inches would be around 1.3 feet tall.

### Recreational maths with 3561

• 3561 backwards is 1653
• The number of decimal digits it has is: 4
• The sum of 3561's digits is 15
• More coming soon!