# 7139745

## 7,139,745 is an odd composite number composed of four prime numbers multiplied together.

What does the number 7139745 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 60 divisors.

7139745 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.

## Prime factorization of 7139745:

### 34 × 5 × 172 × 61

(3 × 3 × 3 × 3 × 5 × 17 × 17 × 61)

See below for interesting mathematical facts about the number 7139745 from the Numbermatics database.

### Names of 7139745

• Cardinal: 7139745 can be written as Seven million, one hundred thirty-nine thousand, seven hundred forty-five.

### Scientific notation

• Scientific notation: 7.139745 × 106

### Factors of 7139745

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 86

### Divisors of 7139745

• Number of divisors d(n): 60
• Complete list of divisors:
• Sum of all divisors σ(n): 13818684
• Sum of proper divisors (its aliquot sum) s(n): 6678939
• 7139745 is a deficient number, because the sum of its proper divisors (6678939) is less than itself. Its deficiency is 460806

### Bases of 7139745

• Binary: 110110011110001101000012
• Base-36: 49129

### Squares and roots of 7139745

• 7139745 squared (71397452) is 50975958665025
• 7139745 cubed (71397453) is 363955345998818918625
• The square root of 7139745 is 2672.0301270757
• The cube root of 7139745 is 192.5577046323

### Scales and comparisons

How big is 7139745?
• 7,139,745 seconds is equal to 11 weeks, 5 days, 15 hours, 15 minutes, 45 seconds.
• To count from 1 to 7,139,745 would take you about seventeen weeks!

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 7139745 cubic inches would be around 16 feet tall.

### Recreational maths with 7139745

• 7139745 backwards is 5479317
• The number of decimal digits it has is: 7
• The sum of 7139745's digits is 36
• More coming soon!