# 856827840

## 856,827,840 is an even composite number composed of six prime numbers multiplied together.

What does the number 856827840 look like?

This visualization shows the relationship between its 6 prime factors (large circles) and 224 divisors.

856827840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.

## Prime factorization of 856827840:

### 26 × 3 × 5 × 11 × 41 × 1979

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 11 × 41 × 1979)

See below for interesting mathematical facts about the number 856827840 from the Numbermatics database.

### Names of 856827840

• Cardinal: 856827840 can be written as Eight hundred fifty-six million, eight hundred twenty-seven thousand, eight hundred forty.

### Scientific notation

• Scientific notation: 8.5682784 × 108

### Factors of 856827840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2041

### Divisors of 856827840

• Number of divisors d(n): 224
• Complete list of divisors:
• Sum of all divisors σ(n): 3041660160
• Sum of proper divisors (its aliquot sum) s(n): 2184832320
• 856827840 is an abundant number, because the sum of its proper divisors (2184832320) is greater than itself. Its abundance is 1328004480

### Bases of 856827840

• Binary: 1100110001001000100111110000002
• Base-36: E64SLC

### Squares and roots of 856827840

• 856827840 squared (8568278402) is 734153947399065600
• 856827840 cubed (8568278403) is 629043540977414996066304000
• The square root of 856827840 is 29271.6217521339
• The cube root of 856827840 is 949.7978665053

### Scales and comparisons

How big is 856827840?
• 856,827,840 seconds is equal to 27 years, 12 weeks, 4 days, 23 hours, 44 minutes.
• To count from 1 to 856,827,840 would take you about forty 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 856827840 cubic inches would be around 79.1 feet tall.

### Recreational maths with 856827840

• 856827840 backwards is 048728658
• 856827840 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 856827840's digits is 48
• More coming soon!