21272490

21,272,490 is an even composite number composed of four prime numbers multiplied together.

What does the number 21272490 look like?

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

21272490 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21272490:

2 × 3³ × 5 × 78787

(2 × 3 × 3 × 3 × 5 × 78787)

See below for interesting mathematical facts about the number 21272490 from the Numbermatics database.

Names of 21272490

Cardinal: 21272490 can be written as Twenty-one million, two hundred seventy-two thousand, four hundred ninety.

Scientific notation

Scientific notation: 2.127249 × 10⁷

Factors of 21272490

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 78797

Divisors of 21272490

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 78787 157574 236361 393935 472722 709083 787870 1181805 1418166 2127249 2363610 3545415 4254498 7090830 10636245 21272490
Sum of all divisors σ(n): 56727360
Sum of proper divisors (its aliquot sum) s(n): 35454870
21272490 is an abundant number, because the sum of its proper divisors (35454870) is greater than itself. Its abundance is 14182380

Bases of 21272490

Binary: 1010001001001011110101010₂
Hexadecimal: 0x14497AA
Base-36: CNXYI

Squares and roots of 21272490

21272490 squared (21272490²) is 452518830800100
21272490 cubed (21272490³) is 9626202303006819249000
The square root of 21272490 is 4612.2109665539
The cube root of 21272490 is 277.0805936123

Scales and comparisons

How big is 21272490?

21,272,490 seconds is equal to 35 weeks, 1 day, 5 hours, 1 minute, 30 seconds.
To count from 1 to 21,272,490 would take you about five days!

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 21272490 cubic inches would be around 23.1 feet tall.

Recreational maths with 21272490

21272490 backwards is 09427212
21272490 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21272490's digits is 27
More coming soon!

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The information we have on file for 21272490 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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