# 681472

## 681,472 is an even composite number composed of two prime numbers multiplied together.

What does the number 681472 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 40 divisors.

681472 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of forty divisors.

## Prime factorization of 681472:

### 29 × 113

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 11 × 11 × 11)

See below for interesting mathematical facts about the number 681472 from the Numbermatics database.

### Names of 681472

• Cardinal: 681472 can be written as Six hundred eighty-one thousand, four hundred seventy-two.

### Scientific notation

• Scientific notation: 6.81472 × 105

### Factors of 681472

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 13

### Divisors of 681472

• Number of divisors d(n): 40
• Complete list of divisors:
• Sum of all divisors σ(n): 1497672
• Sum of proper divisors (its aliquot sum) s(n): 816200
• 681472 is an abundant number, because the sum of its proper divisors (816200) is greater than itself. Its abundance is 134728

### Bases of 681472

• Binary: 101001100110000000002
• Base-36: ELTS

### Squares and roots of 681472

• 681472 squared (6814722) is 464404086784
• 681472 cubed (6814723) is 316478381828866048
• The square root of 681472 is 825.5131737293
• 681472 is a perfect cube number. Its cube root is 88

### Scales and comparisons

How big is 681472?
• 681,472 seconds is equal to 1 week, 21 hours, 17 minutes, 52 seconds.
• To count from 1 to 681,472 would take you about twenty-one 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 681472 cubic inches would be around 7.3 feet tall.

### Recreational maths with 681472

• 681472 backwards is 274186
• The number of decimal digits it has is: 6
• The sum of 681472's digits is 28
• More coming soon!