# 121687

## 121,687 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 121687 look like?

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

121687 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 121687:

### 121687

See below for interesting mathematical facts about the number 121687 from the Numbermatics database.

### Names of 121687

• Cardinal: 121687 can be written as One hundred twenty-one thousand, six hundred eighty-seven.

### Scientific notation

• Scientific notation: 1.21687 × 105

### Factors of 121687

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 121687

### Divisors of 121687

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 121688
• Sum of proper divisors (its aliquot sum) s(n): 1
• 121687 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 121686

### Bases of 121687

• Binary: 111011011010101112
• Base-36: 2LW7

### Squares and roots of 121687

• 121687 squared (1216872) is 14807725969
• 121687 cubed (1216873) is 1801907749989703
• The square root of 121687 is 348.8366379841
• The cube root of 121687 is 49.5543056013

### Scales and comparisons

How big is 121687?
• 121,687 seconds is equal to 1 day, 9 hours, 48 minutes, 7 seconds.
• To count from 1 to 121,687 would take you about nine hours.

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 121687 cubic inches would be around 4.1 feet tall.

### Recreational maths with 121687

• 121687 backwards is 786121
• The number of decimal digits it has is: 6
• The sum of 121687's digits is 25
• More coming soon!