21006804

21,006,804 is an even composite number composed of five prime numbers multiplied together.

What does the number 21006804 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21006804 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21006804:

2² × 3 × 7 × 13 × 19237

(2 × 2 × 3 × 7 × 13 × 19237)

See below for interesting mathematical facts about the number 21006804 from the Numbermatics database.

Names of 21006804

Cardinal: 21006804 can be written as Twenty-one million, six thousand, eight hundred four.

Scientific notation

Scientific notation: 2.1006804 × 10⁷

Factors of 21006804

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 19262

Divisors of 21006804

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 19237 38474 57711 76948 115422 134659 230844 250081 269318 403977 500162 538636 750243 807954 1000324 1500486 1615908 1750567 3000972 3501134 5251701 7002268 10503402 21006804
Sum of all divisors σ(n): 60330368
Sum of proper divisors (its aliquot sum) s(n): 39323564
21006804 is an abundant number, because the sum of its proper divisors (39323564) is greater than itself. Its abundance is 18316760

Bases of 21006804

Binary: 1010000001000100111010100₂
Hexadecimal: 0x14089D4
Base-36: CI8YC

Squares and roots of 21006804

21006804 squared (21006804²) is 441285814294416
21006804 cubed (21006804³) is 9270004608863195206464
The square root of 21006804 is 4583.3180120957
The cube root of 21006804 is 275.9222108019

Scales and comparisons

How big is 21006804?

21,006,804 seconds is equal to 34 weeks, 5 days, 3 hours, 13 minutes, 24 seconds.
To count from 1 to 21,006,804 would take you about sixteen 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 21006804 cubic inches would be around 23 feet tall.

Recreational maths with 21006804

21006804 backwards is 40860012
21006804 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21006804's digits is 21
More coming soon!

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The information we have on file for 21006804 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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