# 1987

## 1,987 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 1987 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

1987 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 1987:

### 1987

See below for interesting mathematical facts about the number 1987 from the Numbermatics database.

### Names of 1987

• Cardinal: 1987 can be written as One thousand, nine hundred eighty-seven.

### Scientific notation

• Scientific notation: 1.987 × 103

### Factors of 1987

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 1987

### Divisors of 1987

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 1988
• Sum of proper divisors (its aliquot sum) s(n): 1
• 1987 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 1986

### Bases of 1987

• Binary: 111110000112
• Base-36: 1J7

### Squares and roots of 1987

• 1987 squared (19872) is 3948169
• 1987 cubed (19873) is 7845011803
• The square root of 1987 is 44.5757781761
• The cube root of 1987 is 12.5718528487

### Scales and comparisons

How big is 1987?
• 1,987 seconds is equal to 33 minutes, 7 seconds.
• To count from 1 to 1,987 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 1987 cubic inches would be around 1 feet tall.

### Recreational maths with 1987

• 1987 backwards is 7891
• The number of decimal digits it has is: 4
• The sum of 1987's digits is 25
• More coming soon!

MLA style:
"Number 1987 - Facts about the integer". Numbermatics.com. 2021. Web. 9 December 2021.

APA style:
Numbermatics. (2021). Number 1987 - Facts about the integer. Retrieved 9 December 2021, from https://numbermatics.com/n/1987/

Chicago style:
Numbermatics. 2021. "Number 1987 - Facts about the integer". https://numbermatics.com/n/1987/

The information we have on file for 1987 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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