21550972

21,550,972 is an even composite number composed of three prime numbers multiplied together.

What does the number 21550972 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

21550972 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 21550972:

2² × 491 × 10973

(2 × 2 × 491 × 10973)

See below for interesting mathematical facts about the number 21550972 from the Numbermatics database.

Names of 21550972

Cardinal: 21550972 can be written as Twenty-one million, five hundred fifty thousand, nine hundred seventy-two.

Scientific notation

Scientific notation: 2.1550972 × 10⁷

Factors of 21550972

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 11466

Divisors of 21550972

Number of divisors d(n): 12
Complete list of divisors:
1 2 4 491 982 1964 10973 21946 43892 5387743 10775486 21550972
Sum of all divisors σ(n): 37794456
Sum of proper divisors (its aliquot sum) s(n): 16243484
21550972 is a deficient number, because the sum of its proper divisors (16243484) is less than itself. Its deficiency is 5307488

Bases of 21550972

Binary: 1010010001101011101111100₂
Hexadecimal: 0x148D77C
Base-36: CTWU4

Squares and roots of 21550972

21550972 squared (21550972²) is 464444394144784
21550972 cubed (21550972³) is 10009228133771203930048
The square root of 21550972 is 4642.3024459851
The cube root of 21550972 is 278.2844594485

Scales and comparisons

How big is 21550972?

21,550,972 seconds is equal to 35 weeks, 4 days, 10 hours, 22 minutes, 52 seconds.
To count from 1 to 21,550,972 would take you about three 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 21550972 cubic inches would be around 23.2 feet tall.

Recreational maths with 21550972

21550972 backwards is 27905512
The number of decimal digits it has is: 8
The sum of 21550972's digits is 31
More coming soon!

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The information we have on file for 21550972 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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