21412820

21,412,820 is an even composite number composed of five prime numbers multiplied together.

What does the number 21412820 look like?

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

21412820 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 21412820:

2² × 5 × 11 × 13 × 7487

(2 × 2 × 5 × 11 × 13 × 7487)

See below for interesting mathematical facts about the number 21412820 from the Numbermatics database.

Names of 21412820

Cardinal: 21412820 can be written as Twenty-one million, four hundred twelve thousand, eight hundred twenty.

Scientific notation

Scientific notation: 2.141282 × 10⁷

Factors of 21412820

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 7518

Divisors of 21412820

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 7487 14974 29948 37435 74870 82357 97331 149740 164714 194662 329428 389324 411785 486655 823570 973310 1070641 1647140 1946620 2141282 4282564 5353205 10706410 21412820
Sum of all divisors σ(n): 52835328
Sum of proper divisors (its aliquot sum) s(n): 31422508
21412820 is an abundant number, because the sum of its proper divisors (31422508) is greater than itself. Its abundance is 10009688

Bases of 21412820

Binary: 1010001101011101111010100₂
Hexadecimal: 0x146BBD4
Base-36: CQY8K

Squares and roots of 21412820

21412820 squared (21412820²) is 458508860352400
21412820 cubed (21412820³) is 9817967695131077768000
The square root of 21412820 is 4627.3988373601
The cube root of 21412820 is 277.6885389193

Scales and comparisons

How big is 21412820?

21,412,820 seconds is equal to 35 weeks, 2 days, 20 hours, 20 seconds.
To count from 1 to 21,412,820 would take you about eighteen 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 21412820 cubic inches would be around 23.1 feet tall.

Recreational maths with 21412820

21412820 backwards is 02821412
21412820 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21412820's digits is 20
More coming soon!

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The information we have on file for 21412820 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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