21081249

21,081,249 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21081249 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

21081249 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21081249:

3³ × 7 × 71 × 1571

(3 × 3 × 3 × 7 × 71 × 1571)

See below for interesting mathematical facts about the number 21081249 from the Numbermatics database.

Names of 21081249

Cardinal: 21081249 can be written as Twenty-one million, eighty-one thousand, two hundred forty-nine.

Scientific notation

Scientific notation: 2.1081249 × 10⁷

Factors of 21081249

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 1652

Divisors of 21081249

Number of divisors d(n): 32
Complete list of divisors:
1 3 7 9 21 27 63 71 189 213 497 639 1491 1571 1917 4473 4713 10997 13419 14139 32991 42417 98973 111541 296919 334623 780787 1003869 2342361 3011607 7027083 21081249
Sum of all divisors σ(n): 36218880
Sum of proper divisors (its aliquot sum) s(n): 15137631
21081249 is a deficient number, because the sum of its proper divisors (15137631) is less than itself. Its deficiency is 5943618

Bases of 21081249

Binary: 1010000011010110010100001₂
Hexadecimal: 0x141ACA1
Base-36: CJUE9

Squares and roots of 21081249

21081249 squared (21081249²) is 444419059400001
21081249 cubed (21081249³) is 9368908851557211681249
The square root of 21081249 is 4591.4321295213
The cube root of 21081249 is 276.2477690011

Scales and comparisons

How big is 21081249?

21,081,249 seconds is equal to 34 weeks, 5 days, 23 hours, 54 minutes, 9 seconds.
To count from 1 to 21,081,249 would take you about twenty-three 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 21081249 cubic inches would be around 23 feet tall.

Recreational maths with 21081249

21081249 backwards is 94218012
21081249 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21081249's digits is 27
More coming soon!

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The information we have on file for 21081249 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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