# 138450840

## 138,450,840 is an even composite number composed of six prime numbers multiplied together.

What does the number 138450840 look like?

This visualization shows the relationship between its 6 prime factors (large circles) and 128 divisors.

138450840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.

## Prime factorization of 138450840:

### 23 × 3 × 5 × 11 × 53 × 1979

(2 × 2 × 2 × 3 × 5 × 11 × 53 × 1979)

See below for interesting mathematical facts about the number 138450840 from the Numbermatics database.

### Names of 138450840

• Cardinal: 138450840 can be written as One hundred thirty-eight million, four hundred fifty thousand, eight hundred forty.

### Scientific notation

• Scientific notation: 1.3845084 × 108

### Factors of 138450840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2053

### Divisors of 138450840

• Number of divisors d(n): 128
• Complete list of divisors:
• Sum of all divisors σ(n): 461894400
• Sum of proper divisors (its aliquot sum) s(n): 323443560
• 138450840 is an abundant number, because the sum of its proper divisors (323443560) is greater than itself. Its abundance is 184992720

### Bases of 138450840

• Binary: 10000100000010010111100110002
• Base-36: 2AFHCO

### Squares and roots of 138450840

• 138450840 squared (1384508402) is 19168635096705600
• 138450840 cubed (1384508403) is 2653913630792371552704000
• The square root of 138450840 is 11766.5135023081
• The cube root of 138450840 is 517.3270630343

### Scales and comparisons

How big is 138450840?
• 138,450,840 seconds is equal to 4 years, 20 weeks, 6 days, 10 hours, 34 minutes.
• To count from 1 to 138,450,840 would take you about six years!

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 138450840 cubic inches would be around 43.1 feet tall.

### Recreational maths with 138450840

• 138450840 backwards is 048054831
• 138450840 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138450840's digits is 33
• More coming soon!