1387280

1,387,280 is an even composite number composed of three prime numbers multiplied together.

What does the number 1387280 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

1387280 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 1387280:

2⁴ × 5 × 17341

(2 × 2 × 2 × 2 × 5 × 17341)

See below for interesting mathematical facts about the number 1387280 from the Numbermatics database.

Names of 1387280

Cardinal: 1387280 can be written as One million, three hundred eighty-seven thousand, two hundred eighty.

Scientific notation

Scientific notation: 1.38728 × 10⁶

Factors of 1387280

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 17348

Divisors of 1387280

Number of divisors d(n): 20
Complete list of divisors:
1 2 4 5 8 10 16 20 40 80 17341 34682 69364 86705 138728 173410 277456 346820 693640 1387280
Sum of all divisors σ(n): 3225612
Sum of proper divisors (its aliquot sum) s(n): 1838332
1387280 is an abundant number, because the sum of its proper divisors (1838332) is greater than itself. Its abundance is 451052

Bases of 1387280

Binary: 101010010101100010000₂
Hexadecimal: 0x152B10
Base-36: TQFK

Squares and roots of 1387280

1387280 squared (1387280²) is 1924545798400
1387280 cubed (1387280³) is 2669883895204352000
The square root of 1387280 is 1177.8285104377
The cube root of 1387280 is 111.5290599717

Scales and comparisons

How big is 1387280?

1,387,280 seconds is equal to 2 weeks, 2 days, 1 hour, 21 minutes, 20 seconds.
To count from 1 to 1,387,280 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 1387280 cubic inches would be around 9.3 feet tall.

Recreational maths with 1387280

1387280 backwards is 0827831
The number of decimal digits it has is: 7
The sum of 1387280's digits is 29
More coming soon!

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The information we have on file for 1387280 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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