428901021

428,901,021 is an odd composite number composed of two prime numbers multiplied together.

What does the number 428901021 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

428901021 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 428901021:

3³ × 15885223

(3 × 3 × 3 × 15885223)

See below for interesting mathematical facts about the number 428901021 from the Numbermatics database.

Names of 428901021

Cardinal: 428901021 can be written as Four hundred twenty-eight million, nine hundred one thousand and twenty-one.

Scientific notation

Scientific notation: 4.28901021 × 10⁸

Factors of 428901021

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 4
Sum of prime factors: 15885226

Divisors of 428901021

Number of divisors d(n): 8
Complete list of divisors:
1 3 9 27 15885223 47655669 142967007 428901021
Sum of all divisors σ(n): 635408960
Sum of proper divisors (its aliquot sum) s(n): 206507939
428901021 is a deficient number, because the sum of its proper divisors (206507939) is less than itself. Its deficiency is 222393082

Bases of 428901021

Binary: 11001100100001000001010011101₂
Hexadecimal: 0x1990829D
Base-36: 73CU59

Squares and roots of 428901021

428901021 squared (428901021²) is 183956085814842441
428901021 cubed (428901021³) is 78898953025149539899032261
The square root of 428901021 is 20709.9256637971
The cube root of 428901021 is 754.1406657797

Scales and comparisons

How big is 428901021?

428,901,021 seconds is equal to 13 years, 33 weeks, 1 day, 3 hours, 10 minutes, 21 seconds.
To count from 1 to 428,901,021 would take you about twenty years!

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 428901021 cubic inches would be around 62.8 feet tall.

Recreational maths with 428901021

428901021 backwards is 120109824
428901021 is a Harshad number.
The number of decimal digits it has is: 9
The sum of 428901021's digits is 27
More coming soon!

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The information we have on file for 428901021 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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