2921

2,921 is an odd composite number composed of two prime numbers multiplied together.

What does the number 2921 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

2921 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 2921:

23 × 127

See below for interesting mathematical facts about the number 2921 from the Numbermatics database.

Names of 2921

Cardinal: 2921 can be written as Two thousand, nine hundred twenty-one.

Scientific notation

Scientific notation: 2.921 × 10³

Factors of 2921

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 150

Divisors of 2921

Number of divisors d(n): 4
Complete list of divisors:
1 23 127 2921
Sum of all divisors σ(n): 3072
Sum of proper divisors (its aliquot sum) s(n): 151
2921 is a deficient number, because the sum of its proper divisors (151) is less than itself. Its deficiency is 2770

Bases of 2921

Binary: 101101101001₂
Hexadecimal: 0xB69
Base-36: 295

Squares and roots of 2921

2921 squared (2921²) is 8532241
2921 cubed (2921³) is 24922675961
The square root of 2921 is 54.0462764675
The cube root of 2921 is 14.2947704483

Scales and comparisons

How big is 2921?

2,921 seconds is equal to 48 minutes, 41 seconds.
To count from 1 to 2,921 would take you about forty-eight 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 2921 cubic inches would be around 1.2 feet tall.

Recreational maths with 2921

2921 backwards is 1292
The number of decimal digits it has is: 4
The sum of 2921's digits is 14
More coming soon!

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The information we have on file for 2921 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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