# 142440

## 142,440 is an even composite number composed of four prime numbers multiplied together.

What does the number 142440 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

142440 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

## Prime factorization of 142440:

### 23 × 3 × 5 × 1187

(2 × 2 × 2 × 3 × 5 × 1187)

See below for interesting mathematical facts about the number 142440 from the Numbermatics database.

### Names of 142440

• Cardinal: 142440 can be written as One hundred forty-two thousand, four hundred forty.

### Scientific notation

• Scientific notation: 1.4244 × 105

### Factors of 142440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1197

### Divisors of 142440

• Number of divisors d(n): 32
• Complete list of divisors:
• Sum of all divisors σ(n): 427680
• Sum of proper divisors (its aliquot sum) s(n): 285240
• 142440 is an abundant number, because the sum of its proper divisors (285240) is greater than itself. Its abundance is 142800

### Bases of 142440

• Binary: 1000101100011010002
• Base-36: 31WO

### Squares and roots of 142440

• 142440 squared (1424402) is 20289153600
• 142440 cubed (1424403) is 2889987038784000
• The square root of 142440 is 377.4122414549
• The cube root of 142440 is 52.2248644773

### Scales and comparisons

How big is 142440?
• 142,440 seconds is equal to 1 day, 15 hours, 34 minutes.
• To count from 1 to 142,440 would take you about fifteen 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 142440 cubic inches would be around 4.4 feet tall.

### Recreational maths with 142440

• 142440 backwards is 044241
• 142440 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 142440's digits is 15
• More coming soon!