# 1641

## 1,641 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1641 look like?

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

1641 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 1641:

### 3 × 547

See below for interesting mathematical facts about the number 1641 from the Numbermatics database.

### Names of 1641

• Cardinal: 1641 can be written as One thousand, six hundred forty-one.

### Scientific notation

• Scientific notation: 1.641 × 103

### Factors of 1641

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 550

### Divisors of 1641

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 2192
• Sum of proper divisors (its aliquot sum) s(n): 551
• 1641 is a deficient number, because the sum of its proper divisors (551) is less than itself. Its deficiency is 1090

### Bases of 1641

• Binary: 110011010012
• Base-36: 19L

### Squares and roots of 1641

• 1641 squared (16412) is 2692881
• 1641 cubed (16413) is 4419017721
• The square root of 1641 is 40.5092582011
• The cube root of 1641 is 11.7951334907

### Scales and comparisons

How big is 1641?
• 1,641 seconds is equal to 27 minutes, 21 seconds.
• To count from 1 to 1,641 would take you about twenty-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 1641 cubic inches would be around 1 feet tall.

### Recreational maths with 1641

• 1641 backwards is 1461
• The number of decimal digits it has is: 4
• The sum of 1641's digits is 12
• More coming soon!