# 1978

## 1,978 is an even composite number composed of three prime numbers multiplied together.

What does the number 1978 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

1978 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 1978:

### 2 × 23 × 43

See below for interesting mathematical facts about the number 1978 from the Numbermatics database.

### Names of 1978

• Cardinal: 1978 can be written as One thousand, nine hundred seventy-eight.

### Scientific notation

• Scientific notation: 1.978 × 103

### Factors of 1978

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 68

### Divisors of 1978

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 3168
• Sum of proper divisors (its aliquot sum) s(n): 1190
• 1978 is a deficient number, because the sum of its proper divisors (1190) is less than itself. Its deficiency is 788

### Bases of 1978

• Binary: 111101110102
• Base-36: 1IY

### Squares and roots of 1978

• 1978 squared (19782) is 3912484
• 1978 cubed (19783) is 7738893352
• The square root of 1978 is 44.4747119159
• The cube root of 1978 is 12.5528429615

### Scales and comparisons

How big is 1978?
• 1,978 seconds is equal to 32 minutes, 58 seconds.
• To count from 1 to 1,978 would take you about thirty-two 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 1978 cubic inches would be around 1 feet tall.

### Recreational maths with 1978

• 1978 backwards is 8791
• The number of decimal digits it has is: 4
• The sum of 1978's digits is 25
• More coming soon!