# 77121

## 77,121 is an odd composite number composed of four prime numbers multiplied together.

What does the number 77121 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

77121 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

## Prime factorization of 77121:

### 32 × 11 × 19 × 41

(3 × 3 × 11 × 19 × 41)

See below for interesting mathematical facts about the number 77121 from the Numbermatics database.

### Names of 77121

• Cardinal: 77121 can be written as Seventy-seven thousand, one hundred twenty-one.

### Scientific notation

• Scientific notation: 7.7121 × 104

### Factors of 77121

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 74

### Divisors of 77121

• Number of divisors d(n): 24
• Complete list of divisors:
• Sum of all divisors σ(n): 131040
• Sum of proper divisors (its aliquot sum) s(n): 53919
• 77121 is a deficient number, because the sum of its proper divisors (53919) is less than itself. Its deficiency is 23202

### Bases of 77121

• Binary: 100101101010000012
• Base-36: 1NI9

### Squares and roots of 77121

• 77121 squared (771212) is 5947648641
• 77121 cubed (771213) is 458688610842561
• The square root of 77121 is 277.7066797901
• The cube root of 77121 is 42.5654815263

### Scales and comparisons

How big is 77121?
• 77,121 seconds is equal to 21 hours, 25 minutes, 21 seconds.
• To count from 1 to 77,121 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 77121 cubic inches would be around 3.5 feet tall.

### Recreational maths with 77121

• 77121 backwards is 12177
• The number of decimal digits it has is: 5
• The sum of 77121's digits is 18
• More coming soon!