1297728

1,297,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 1297728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 56 divisors.

1297728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 1297728:

2⁶ × 3³ × 751

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 751)

See below for interesting mathematical facts about the number 1297728 from the Numbermatics database.

Names of 1297728

Cardinal: 1297728 can be written as One million, two hundred ninety-seven thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 1.297728 × 10⁶

Factors of 1297728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 10
Sum of prime factors: 756

Divisors of 1297728

Number of divisors d(n): 56
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 751 864 1502 1728 2253 3004 4506 6008 6759 9012 12016 13518 18024 20277 24032 27036 36048 40554 48064 54072 72096 81108 108144 144192 162216 216288 324432 432576 648864 1297728
Sum of all divisors σ(n): 3820160
Sum of proper divisors (its aliquot sum) s(n): 2522432
1297728 is an abundant number, because the sum of its proper divisors (2522432) is greater than itself. Its abundance is 1224704

Bases of 1297728

Binary: 100111100110101000000₂
Hexadecimal: 0x13CD40
Base-36: RTC0

Squares and roots of 1297728

1297728 squared (1297728²) is 1684097961984
1297728 cubed (1297728³) is 2185501080009572352
The square root of 1297728 is 1139.1786514853
The cube root of 1297728 is 109.0756705987

Scales and comparisons

How big is 1297728?

1,297,728 seconds is equal to 2 weeks, 1 day, 28 minutes, 48 seconds.
To count from 1 to 1,297,728 would take you about three weeks!

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 1297728 cubic inches would be around 9.1 feet tall.

Recreational maths with 1297728

1297728 backwards is 8277921
1297728 is a Harshad number.
The number of decimal digits it has is: 7
The sum of 1297728's digits is 36
More coming soon!

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The information we have on file for 1297728 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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