# 121440

## 121,440 is an even composite number composed of five prime numbers multiplied together.

What does the number 121440 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 96 divisors.

121440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.

## Prime factorization of 121440:

### 25 × 3 × 5 × 11 × 23

(2 × 2 × 2 × 2 × 2 × 3 × 5 × 11 × 23)

See below for interesting mathematical facts about the number 121440 from the Numbermatics database.

### Names of 121440

• Cardinal: 121440 can be written as One hundred twenty-one thousand, four hundred forty.

### Scientific notation

• Scientific notation: 1.2144 × 105

### Factors of 121440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 44

### Divisors of 121440

• Number of divisors d(n): 96
• Complete list of divisors:
• Sum of all divisors σ(n): 435456
• Sum of proper divisors (its aliquot sum) s(n): 314016
• 121440 is an abundant number, because the sum of its proper divisors (314016) is greater than itself. Its abundance is 192576

### Bases of 121440

• Binary: 111011010011000002
• Base-36: 2LPC

### Squares and roots of 121440

• 121440 squared (1214402) is 14747673600
• 121440 cubed (1214403) is 1790957481984000
• The square root of 121440 is 348.4824242339
• The cube root of 121440 is 49.5207544843

### Scales and comparisons

How big is 121440?
• 121,440 seconds is equal to 9 hours, 44 minutes.
• To count from 1 to 121,440 would take you about nine 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 121440 cubic inches would be around 4.1 feet tall.

### Recreational maths with 121440

• 121440 backwards is 044121
• 121440 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 121440's digits is 12
• More coming soon!