# 689138

## 689,138 is an even composite number composed of two prime numbers multiplied together.

What does the number 689138 look like?

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

689138 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 689138:

### 2 × 5872

(2 × 587 × 587)

See below for interesting mathematical facts about the number 689138 from the Numbermatics database.

### Names of 689138

• Cardinal: 689138 can be written as Six hundred eighty-nine thousand, one hundred thirty-eight.

### Scientific notation

• Scientific notation: 6.89138 × 105

### Factors of 689138

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 589

### Divisors of 689138

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 1035471
• Sum of proper divisors (its aliquot sum) s(n): 346333
• 689138 is a deficient number, because the sum of its proper divisors (346333) is less than itself. Its deficiency is 342805

### Bases of 689138

• Binary: 101010000011111100102
• Base-36: ERQQ

### Squares and roots of 689138

• 689138 squared (6891382) is 474911183044
• 689138 cubed (6891383) is 327279342860576072
• The square root of 689138 is 830.1433611131
• The cube root of 689138 is 88.3287462513

### Scales and comparisons

How big is 689138?
• 689,138 seconds is equal to 1 week, 23 hours, 25 minutes, 38 seconds.
• To count from 1 to 689,138 would take you about twenty-three hours!

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 689138 cubic inches would be around 7.4 feet tall.

### Recreational maths with 689138

• 689138 backwards is 831986
• The number of decimal digits it has is: 6
• The sum of 689138's digits is 35
• More coming soon!