# 28489

## 28,489 is an odd composite number composed of two prime numbers multiplied together.

What does the number 28489 look like?

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

28489 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 28489:

### 31 × 919

See below for interesting mathematical facts about the number 28489 from the Numbermatics database.

### Names of 28489

• Cardinal: 28489 can be written as Twenty-eight thousand, four hundred eighty-nine.

### Scientific notation

• Scientific notation: 2.8489 × 104

### Factors of 28489

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 950

### Divisors of 28489

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 29440
• Sum of proper divisors (its aliquot sum) s(n): 951
• 28489 is a deficient number, because the sum of its proper divisors (951) is less than itself. Its deficiency is 27538

### Bases of 28489

• Binary: 1101111010010012
• Base-36: LZD

### Squares and roots of 28489

• 28489 squared (284892) is 811623121
• 28489 cubed (284893) is 23122331094169
• The square root of 28489 is 168.7868478289
• The cube root of 28489 is 30.5416433759

### Scales and comparisons

How big is 28489?
• 28,489 seconds is equal to 7 hours, 54 minutes, 49 seconds.
• To count from 1 to 28,489 would take you about seven 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 28489 cubic inches would be around 2.5 feet tall.

### Recreational maths with 28489

• 28489 backwards is 98482
• 28489 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 28489's digits is 31
• More coming soon!