21351009

21,351,009 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21351009 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

21351009 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 21351009:

3 × 3571 × 1993

See below for interesting mathematical facts about the number 21351009 from the Numbermatics database.

Names of 21351009

Cardinal: 21351009 can be written as Twenty-one million, three hundred fifty-one thousand and nine.

Scientific notation

Scientific notation: 2.1351009 × 10⁷

Factors of 21351009

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 5567

Divisors of 21351009

Number of divisors d(n): 8
Complete list of divisors:
1 3 1993 3571 5979 10713 7117003 21351009
Sum of all divisors σ(n): 28490272
Sum of proper divisors (its aliquot sum) s(n): 7139263
21351009 is a deficient number, because the sum of its proper divisors (7139263) is less than itself. Its deficiency is 14211746

Bases of 21351009

Binary: 1010001011100101001100001₂
Hexadecimal: 0x145CA61
Base-36: CPMJL

Squares and roots of 21351009

21351009 squared (21351009²) is 455865585318081
21351009 cubed (21351009³) is 9733190214916615293729
The square root of 21351009 is 4620.7152043813
The cube root of 21351009 is 277.4210862373

Scales and comparisons

How big is 21351009?

21,351,009 seconds is equal to 35 weeks, 2 days, 2 hours, 50 minutes, 9 seconds.
To count from 1 to 21,351,009 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 21351009 cubic inches would be around 23.1 feet tall.

Recreational maths with 21351009

21351009 backwards is 90015312
The number of decimal digits it has is: 8
The sum of 21351009's digits is 21
More coming soon!

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The information we have on file for 21351009 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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