# 1659

## 1,659 is an odd composite number composed of three prime numbers multiplied together.

What does the number 1659 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

1659 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 1659:

### 3 × 7 × 79

See below for interesting mathematical facts about the number 1659 from the Numbermatics database.

### Names of 1659

• Cardinal: 1659 can be written as One thousand, six hundred fifty-nine.

### Scientific notation

• Scientific notation: 1.659 × 103

### Factors of 1659

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 89

### Divisors of 1659

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 2560
• Sum of proper divisors (its aliquot sum) s(n): 901
• 1659 is a deficient number, because the sum of its proper divisors (901) is less than itself. Its deficiency is 758

### Bases of 1659

• Binary: 110011110112
• Base-36: 1A3

### Squares and roots of 1659

• 1659 squared (16592) is 2752281
• 1659 cubed (16593) is 4566034179
• The square root of 1659 is 40.7308237089
• The cube root of 1659 is 11.8381033913

### Scales and comparisons

How big is 1659?
• 1,659 seconds is equal to 27 minutes, 39 seconds.
• To count from 1 to 1,659 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 1659 cubic inches would be around 1 feet tall.

### Recreational maths with 1659

• 1659 backwards is 9561
• 1659 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 1659's digits is 21
• More coming soon!