21992490

21,992,490 is an even composite number composed of five prime numbers multiplied together.

What does the number 21992490 look like?

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

21992490 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 21992490:

2 × 3² × 5 × 13 × 18797

(2 × 3 × 3 × 5 × 13 × 18797)

See below for interesting mathematical facts about the number 21992490 from the Numbermatics database.

Names of 21992490

Cardinal: 21992490 can be written as Twenty-one million, nine hundred ninety-two thousand, four hundred ninety.

Scientific notation

Scientific notation: 2.199249 × 10⁷

Factors of 21992490

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 18820

Divisors of 21992490

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 585 1170 18797 37594 56391 93985 112782 169173 187970 244361 281955 338346 488722 563910 733083 845865 1221805 1466166 1691730 2199249 2443610 3665415 4398498 7330830 10996245 21992490
Sum of all divisors σ(n): 61582248
Sum of proper divisors (its aliquot sum) s(n): 39589758
21992490 is an abundant number, because the sum of its proper divisors (39589758) is greater than itself. Its abundance is 17597268

Bases of 21992490

Binary: 1010011111001010000101010₂
Hexadecimal: 0x14F942A
Base-36: D3DII

Squares and roots of 21992490

21992490 squared (21992490²) is 483669616400100
21992490 cubed (21992490³) is 10637099201983035249000
The square root of 21992490 is 4689.6151228005
The cube root of 21992490 is 280.1720456255

Scales and comparisons

How big is 21992490?

21,992,490 seconds is equal to 36 weeks, 2 days, 13 hours, 1 minute, 30 seconds.
To count from 1 to 21,992,490 would take you about two weeks!

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 21992490 cubic inches would be around 23.3 feet tall.

Recreational maths with 21992490

21992490 backwards is 09429912
The number of decimal digits it has is: 8
The sum of 21992490's digits is 36
More coming soon!

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The information we have on file for 21992490 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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