# 13840420

## 13,840,420 is an even composite number composed of five prime numbers multiplied together.

What does the number 13840420 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

13840420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

## Prime factorization of 13840420:

### 22 × 5 × 11 × 53 × 1187

(2 × 2 × 5 × 11 × 53 × 1187)

See below for interesting mathematical facts about the number 13840420 from the Numbermatics database.

### Names of 13840420

• Cardinal: 13840420 can be written as Thirteen million, eight hundred forty thousand, four hundred twenty.

### Scientific notation

• Scientific notation: 1.384042 × 107

### Factors of 13840420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1258

### Divisors of 13840420

• Number of divisors d(n): 48
• Complete list of divisors:
• Sum of all divisors σ(n): 32332608
• Sum of proper divisors (its aliquot sum) s(n): 18492188
• 13840420 is an abundant number, because the sum of its proper divisors (18492188) is greater than itself. Its abundance is 4651768

### Bases of 13840420

• Binary: 1101001100110000001001002
• Base-36: 88NC4

### Squares and roots of 13840420

• 13840420 squared (138404202) is 191557225776400
• 13840420 cubed (138404203) is 2651232458780202088000
• The square root of 13840420 is 3720.2714954689
• The cube root of 13840420 is 240.0949855505

### Scales and comparisons

How big is 13840420?
• 13,840,420 seconds is equal to 22 weeks, 6 days, 4 hours, 33 minutes, 40 seconds.
• To count from 1 to 13,840,420 would take you about thirty-four 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 13840420 cubic inches would be around 20 feet tall.

### Recreational maths with 13840420

• 13840420 backwards is 02404831
• 13840420 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13840420's digits is 22
• More coming soon!