1387490

1,387,490 is an even composite number composed of four prime numbers multiplied together.

What does the number 1387490 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

1387490 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 1387490:

2 × 5 × 13² × 821

(2 × 5 × 13 × 13 × 821)

See below for interesting mathematical facts about the number 1387490 from the Numbermatics database.

Names of 1387490

Cardinal: 1387490 can be written as One million, three hundred eighty-seven thousand, four hundred ninety.

Scientific notation

Scientific notation: 1.38749 × 10⁶

Factors of 1387490

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 841

Divisors of 1387490

Number of divisors d(n): 24
Complete list of divisors:
1 2 5 10 13 26 65 130 169 338 821 845 1642 1690 4105 8210 10673 21346 53365 106730 138749 277498 693745 1387490
Sum of all divisors σ(n): 2707668
Sum of proper divisors (its aliquot sum) s(n): 1320178
1387490 is a deficient number, because the sum of its proper divisors (1320178) is less than itself. Its deficiency is 67312

Bases of 1387490

Binary: 101010010101111100010₂
Hexadecimal: 0x152BE2
Base-36: TQLE

Squares and roots of 1387490

1387490 squared (1387490²) is 1925128500100
1387490 cubed (1387490³) is 2671096542603749000
The square root of 1387490 is 1177.9176541679
The cube root of 1387490 is 111.5346872713

Scales and comparisons

How big is 1387490?

1,387,490 seconds is equal to 2 weeks, 2 days, 1 hour, 24 minutes, 50 seconds.
To count from 1 to 1,387,490 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 1387490 cubic inches would be around 9.3 feet tall.

Recreational maths with 1387490

1387490 backwards is 0947831
The number of decimal digits it has is: 7
The sum of 1387490's digits is 32
More coming soon!

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The information we have on file for 1387490 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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