21003040

21,003,040 is an even composite number composed of four prime numbers multiplied together.

What does the number 21003040 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

21003040 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21003040:

2⁵ × 5 × 149 × 881

(2 × 2 × 2 × 2 × 2 × 5 × 149 × 881)

See below for interesting mathematical facts about the number 21003040 from the Numbermatics database.

Names of 21003040

Cardinal: 21003040 can be written as Twenty-one million, three thousand and forty.

Scientific notation

Scientific notation: 2.100304 × 10⁷

Factors of 21003040

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 1037

Divisors of 21003040

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 8 10 16 20 32 40 80 149 160 298 596 745 881 1192 1490 1762 2384 2980 3524 4405 4768 5960 7048 8810 11920 14096 17620 23840 28192 35240 70480 131269 140960 262538 525076 656345 1050152 1312690 2100304 2625380 4200608 5250760 10501520 21003040
Sum of all divisors σ(n): 50009400
Sum of proper divisors (its aliquot sum) s(n): 29006360
21003040 is an abundant number, because the sum of its proper divisors (29006360) is greater than itself. Its abundance is 8003320

Bases of 21003040

Binary: 1010000000111101100100000₂
Hexadecimal: 0x1407B20
Base-36: CI61S

Squares and roots of 21003040

21003040 squared (21003040²) is 441127689241600
21003040 cubed (21003040³) is 9265022502248894464000
The square root of 21003040 is 4582.9073741459
The cube root of 21003040 is 275.9057298997

Scales and comparisons

How big is 21003040?

21,003,040 seconds is equal to 34 weeks, 5 days, 2 hours, 10 minutes, 40 seconds.
To count from 1 to 21,003,040 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 21003040 cubic inches would be around 23 feet tall.

Recreational maths with 21003040

21003040 backwards is 04030012
21003040 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21003040's digits is 10
More coming soon!

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The information we have on file for 21003040 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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