# 2020

## 2,020 is an even composite number composed of three prime numbers multiplied together.

What does the number 2020 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

2020 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

## Prime factorization of 2020:

### 22 × 5 × 101

(2 × 2 × 5 × 101)

See below for interesting mathematical facts about the number 2020 from the Numbermatics database.

### Names of 2020

• Cardinal: 2020 can be written as Two thousand and twenty.

### Scientific notation

• Scientific notation: 2.02 × 103

### Factors of 2020

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 108

### Divisors of 2020

• Number of divisors d(n): 12
• Complete list of divisors:
• Sum of all divisors σ(n): 4284
• Sum of proper divisors (its aliquot sum) s(n): 2264
• 2020 is an abundant number, because the sum of its proper divisors (2264) is greater than itself. Its abundance is 244

### Bases of 2020

• Binary: 111111001002
• Base-36: 1K4

### Squares and roots of 2020

• 2020 squared (20202) is 4080400
• 2020 cubed (20203) is 8242408000
• The square root of 2020 is 44.9444101085
• The cube root of 2020 is 12.6410686485

### Scales and comparisons

How big is 2020?
• 2,020 seconds is equal to 33 minutes, 40 seconds.
• To count from 1 to 2,020 would take you about thirty-three minutes.

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 2020 cubic inches would be around 1.1 feet tall.

### Recreational maths with 2020

• 2020 backwards is 0202
• 2020 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 2020's digits is 4
• More coming soon!