# 3121

## 3,121 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 3121 look like?

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

3121 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 3121:

### 3121

See below for interesting mathematical facts about the number 3121 from the Numbermatics database.

### Names of 3121

• Cardinal: 3121 can be written as Three thousand, one hundred twenty-one.

### Scientific notation

• Scientific notation: 3.121 × 103

### Factors of 3121

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 3121

### Divisors of 3121

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 3122
• Sum of proper divisors (its aliquot sum) s(n): 1
• 3121 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 3120

### Bases of 3121

• Binary: 1100001100012
• Base-36: 2EP

### Squares and roots of 3121

• 3121 squared (31212) is 9740641
• 3121 cubed (31213) is 30400540561
• The square root of 3121 is 55.8659108939
• The cube root of 3121 is 14.6138481231

### Scales and comparisons

How big is 3121?
• 3,121 seconds is equal to 52 minutes, 1 second.
• To count from 1 to 3,121 would take you about fifty-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 3121 cubic inches would be around 1.2 feet tall.

### Recreational maths with 3121

• 3121 backwards is 1213
• The number of decimal digits it has is: 4
• The sum of 3121's digits is 7
• More coming soon!