123945728

123,945,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 123945728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 36 divisors.

123945728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 123945728:

2⁸ × 281 × 1723

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 281 × 1723)

See below for interesting mathematical facts about the number 123945728 from the Numbermatics database.

Names of 123945728

Cardinal: 123945728 can be written as One hundred twenty-three million, nine hundred forty-five thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 1.23945728 × 10⁸

Factors of 123945728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 10
Sum of prime factors: 2006

Divisors of 123945728

Number of divisors d(n): 36
Complete list of divisors:
1 2 4 8 16 32 64 128 256 281 562 1124 1723 2248 3446 4496 6892 8992 13784 17984 27568 35968 55136 71936 110272 220544 441088 484163 968326 1936652 3873304 7746608 15493216 30986432 61972864 123945728
Sum of all divisors σ(n): 248431848
Sum of proper divisors (its aliquot sum) s(n): 124486120
123945728 is an abundant number, because the sum of its proper divisors (124486120) is greater than itself. Its abundance is 540392

Bases of 123945728

Binary: 111011000110100001100000000₂
Hexadecimal: 0x7634300
Base-36: 21SL4W

Squares and roots of 123945728

123945728 squared (123945728²) is 15362543489449984
123945728 cubed (123945728³) is 1904121636731538586468352
The square root of 123945728 is 11133.0915742215
The cube root of 123945728 is 498.5903334153

Scales and comparisons

How big is 123945728?

123,945,728 seconds is equal to 3 years, 48 weeks, 6 days, 13 hours, 22 minutes, 8 seconds.
To count from 1 to 123,945,728 would take you about five 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 123945728 cubic inches would be around 41.5 feet tall.

Recreational maths with 123945728

123945728 backwards is 827549321
The number of decimal digits it has is: 9
The sum of 123945728's digits is 41
More coming soon!

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The information we have on file for 123945728 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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