21047247

21,047,247 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21047247 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

21047247 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21047247:

3² × 13 × 59 × 3049

(3 × 3 × 13 × 59 × 3049)

See below for interesting mathematical facts about the number 21047247 from the Numbermatics database.

Names of 21047247

Cardinal: 21047247 can be written as Twenty-one million, forty-seven thousand, two hundred forty-seven.

Scientific notation

Scientific notation: 2.1047247 × 10⁷

Factors of 21047247

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 3124

Divisors of 21047247

Number of divisors d(n): 24
Complete list of divisors:
1 3 9 13 39 59 117 177 531 767 2301 3049 6903 9147 27441 39637 118911 179891 356733 539673 1619019 2338583 7015749 21047247
Sum of all divisors σ(n): 33306000
Sum of proper divisors (its aliquot sum) s(n): 12258753
21047247 is a deficient number, because the sum of its proper divisors (12258753) is less than itself. Its deficiency is 8788494

Bases of 21047247

Binary: 1010000010010011111001111₂
Hexadecimal: 0x14127CF
Base-36: CJ45R

Squares and roots of 21047247

21047247 squared (21047247²) is 442986606279009
21047247 cubed (21047247³) is 9323648520046053338223
The square root of 21047247 is 4587.7278689999
The cube root of 21047247 is 276.0991688375

Scales and comparisons

How big is 21047247?

21,047,247 seconds is equal to 34 weeks, 5 days, 14 hours, 27 minutes, 27 seconds.
To count from 1 to 21,047,247 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 21047247 cubic inches would be around 23 feet tall.

Recreational maths with 21047247

21047247 backwards is 74274012
The number of decimal digits it has is: 8
The sum of 21047247's digits is 27
More coming soon!

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The information we have on file for 21047247 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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