# 1142640

## 1,142,640 is an even composite number composed of four prime numbers multiplied together.

What does the number 1142640 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 120 divisors.

1142640 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.

## Prime factorization of 1142640:

### 24 × 33 × 5 × 232

(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 23 × 23)

See below for interesting mathematical facts about the number 1142640 from the Numbermatics database.

### Names of 1142640

• Cardinal: 1142640 can be written as One million, one hundred forty-two thousand, six hundred forty.

### Scientific notation

• Scientific notation: 1.14264 × 106

### Factors of 1142640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 33

### Divisors of 1142640

• Number of divisors d(n): 120
• Complete list of divisors:
• Sum of all divisors σ(n): 4114320
• Sum of proper divisors (its aliquot sum) s(n): 2971680
• 1142640 is an abundant number, because the sum of its proper divisors (2971680) is greater than itself. Its abundance is 1829040

### Bases of 1142640

• Binary: 1000101101111011100002
• Base-36: OHO0

### Squares and roots of 1142640

• 1142640 squared (11426402) is 1305626169600
• 1142640 cubed (11426403) is 1491860686431744000
• The square root of 1142640 is 1068.9434035531
• The cube root of 1142640 is 104.5449696947

### Scales and comparisons

How big is 1142640?
• 1,142,640 seconds is equal to 6 days, 5 hours, 24 minutes.
• To count from 1 to 1,142,640 would take you about two 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 1142640 cubic inches would be around 8.7 feet tall.

### Recreational maths with 1142640

• 1142640 backwards is 0462411
• 1142640 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 1142640's digits is 18
• More coming soon!