# 1604

## 1,604 is an even composite number composed of two prime numbers multiplied together.

What does the number 1604 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

1604 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 1604:

### 22 × 401

(2 × 2 × 401)

See below for interesting mathematical facts about the number 1604 from the Numbermatics database.

### Names of 1604

• Cardinal: 1604 can be written as One thousand, six hundred four.

### Scientific notation

• Scientific notation: 1.604 × 103

### Factors of 1604

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 403

### Divisors of 1604

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 2814
• Sum of proper divisors (its aliquot sum) s(n): 1210
• 1604 is a deficient number, because the sum of its proper divisors (1210) is less than itself. Its deficiency is 394

### Bases of 1604

• Binary: 110010001002
• Base-36: 18K

### Squares and roots of 1604

• 1604 squared (16042) is 2572816
• 1604 cubed (16043) is 4126796864
• The square root of 1604 is 40.0499687891
• The cube root of 1604 is 11.7058095677

### Scales and comparisons

How big is 1604?
• 1,604 seconds is equal to 26 minutes, 44 seconds.
• To count from 1 to 1,604 would take you about twenty-six 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 1604 cubic inches would be around 1 feet tall.

### Recreational maths with 1604

• 1604 backwards is 4061
• The number of decimal digits it has is: 4
• The sum of 1604's digits is 11
• More coming soon!