21003949

21,003,949 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21003949 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

21003949 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 21003949:

19 × 151 × 7321

See below for interesting mathematical facts about the number 21003949 from the Numbermatics database.

Names of 21003949

Cardinal: 21003949 can be written as Twenty-one million, three thousand, nine hundred forty-nine.

Scientific notation

Scientific notation: 2.1003949 × 10⁷

Factors of 21003949

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 7491

Divisors of 21003949

Number of divisors d(n): 8
Complete list of divisors:
1 19 151 2869 7321 139099 1105471 21003949
Sum of all divisors σ(n): 22258880
Sum of proper divisors (its aliquot sum) s(n): 1254931
21003949 is a deficient number, because the sum of its proper divisors (1254931) is less than itself. Its deficiency is 19749018

Bases of 21003949

Binary: 1010000000111111010101101₂
Hexadecimal: 0x1407EAD
Base-36: CI6R1

Squares and roots of 21003949

21003949 squared (21003949²) is 441165873594601
21003949 cubed (21003949³) is 9266225509521446079349
The square root of 21003949 is 4583.0065459259
The cube root of 21003949 is 275.9097101917

Scales and comparisons

How big is 21003949?

21,003,949 seconds is equal to 34 weeks, 5 days, 2 hours, 25 minutes, 49 seconds.
To count from 1 to 21,003,949 would take you about fifteen 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 21003949 cubic inches would be around 23 feet tall.

Recreational maths with 21003949

21003949 backwards is 94930012
The number of decimal digits it has is: 8
The sum of 21003949's digits is 28
More coming soon!

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The information we have on file for 21003949 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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