21768890

21,768,890 is an even composite number composed of five prime numbers multiplied together.

What does the number 21768890 look like?

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

21768890 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 21768890:

2 × 5 × 11 × 13² × 1171

(2 × 5 × 11 × 13 × 13 × 1171)

See below for interesting mathematical facts about the number 21768890 from the Numbermatics database.

Names of 21768890

Cardinal: 21768890 can be written as Twenty-one million, seven hundred sixty-eight thousand, eight hundred ninety.

Scientific notation

Scientific notation: 2.176889 × 10⁷

Factors of 21768890

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 1202

Divisors of 21768890

Number of divisors d(n): 48
Complete list of divisors:
1 2 5 10 11 13 22 26 55 65 110 130 143 169 286 338 715 845 1171 1430 1690 1859 2342 3718 5855 9295 11710 12881 15223 18590 25762 30446 64405 76115 128810 152230 167453 197899 334906 395798 837265 989495 1674530 1978990 2176889 4353778 10884445 21768890
Sum of all divisors σ(n): 46326816
Sum of proper divisors (its aliquot sum) s(n): 24557926
21768890 is an abundant number, because the sum of its proper divisors (24557926) is greater than itself. Its abundance is 2789036

Bases of 21768890

Binary: 1010011000010101010111010₂
Hexadecimal: 0x14C2ABA
Base-36: CYKZE

Squares and roots of 21768890

21768890 squared (21768890²) is 473884571832100
21768890 cubed (21768890³) is 10315941116910083369000
The square root of 21768890 is 4665.7143075847
The cube root of 21768890 is 279.2192963321

Scales and comparisons

How big is 21768890?

21,768,890 seconds is equal to 35 weeks, 6 days, 22 hours, 54 minutes, 50 seconds.
To count from 1 to 21,768,890 would take you about six 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 21768890 cubic inches would be around 23.3 feet tall.

Recreational maths with 21768890

21768890 backwards is 09886712
The number of decimal digits it has is: 8
The sum of 21768890's digits is 41
More coming soon!

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The information we have on file for 21768890 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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