# 51139

## 51,139 is an odd composite number composed of two prime numbers multiplied together.

What does the number 51139 look like?

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

51139 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 51139:

### 11 × 4649

See below for interesting mathematical facts about the number 51139 from the Numbermatics database.

### Names of 51139

• Cardinal: 51139 can be written as Fifty-one thousand, one hundred thirty-nine.

### Scientific notation

• Scientific notation: 5.1139 × 104

### Factors of 51139

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4660

### Divisors of 51139

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 55800
• Sum of proper divisors (its aliquot sum) s(n): 4661
• 51139 is a deficient number, because the sum of its proper divisors (4661) is less than itself. Its deficiency is 46478

### Bases of 51139

• Binary: 11000111110000112
• Base-36: 13GJ

### Squares and roots of 51139

• 51139 squared (511392) is 2615197321
• 51139 cubed (511393) is 133738575798619
• The square root of 51139 is 226.1393375775
• The cube root of 51139 is 37.1179580941

### Scales and comparisons

How big is 51139?
• 51,139 seconds is equal to 14 hours, 12 minutes, 19 seconds.
• To count from 1 to 51,139 would take you about fourteen 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 51139 cubic inches would be around 3.1 feet tall.

### Recreational maths with 51139

• 51139 backwards is 93115
• The number of decimal digits it has is: 5
• The sum of 51139's digits is 19
• More coming soon!