# 2621

## 2,621 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 2621 look like?

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

2621 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 2621:

### 2621

See below for interesting mathematical facts about the number 2621 from the Numbermatics database.

### Names of 2621

• Cardinal: 2621 can be written as Two thousand, six hundred twenty-one.

### Scientific notation

• Scientific notation: 2.621 × 103

### Factors of 2621

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 2621

### Divisors of 2621

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 2622
• Sum of proper divisors (its aliquot sum) s(n): 1
• 2621 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 2620

### Bases of 2621

• Binary: 1010001111012
• Base-36: 20T

### Squares and roots of 2621

• 2621 squared (26212) is 6869641
• 2621 cubed (26213) is 18005329061
• The square root of 2621 is 51.1957029447
• The cube root of 2621 is 13.7876105283

### Scales and comparisons

How big is 2621?
• 2,621 seconds is equal to 43 minutes, 41 seconds.
• To count from 1 to 2,621 would take you about forty-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 2621 cubic inches would be around 1.1 feet tall.

### Recreational maths with 2621

• 2621 backwards is 1262
• The number of decimal digits it has is: 4
• The sum of 2621's digits is 11
• More coming soon!