1215864

1,215,864 is an even composite number composed of four prime numbers multiplied together.

What does the number 1215864 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 64 divisors.

1215864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.

Prime factorization of 1215864:

2³ × 3³ × 13 × 433

(2 × 2 × 2 × 3 × 3 × 3 × 13 × 433)

See below for interesting mathematical facts about the number 1215864 from the Numbermatics database.

Names of 1215864

Cardinal: 1215864 can be written as One million, two hundred fifteen thousand, eight hundred sixty-four.

Scientific notation

Scientific notation: 1.215864 × 10⁶

Factors of 1215864

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 451

Divisors of 1215864

Number of divisors d(n): 64
Complete list of divisors:
1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 433 468 702 866 936 1299 1404 1732 2598 2808 3464 3897 5196 5629 7794 10392 11258 11691 15588 16887 22516 23382 31176 33774 45032 46764 50661 67548 93528 101322 135096 151983 202644 303966 405288 607932 1215864
Sum of all divisors σ(n): 3645600
Sum of proper divisors (its aliquot sum) s(n): 2429736
1215864 is an abundant number, because the sum of its proper divisors (2429736) is greater than itself. Its abundance is 1213872

Bases of 1215864

Binary: 100101000110101111000₂
Hexadecimal: 0x128D78
Base-36: Q260

Squares and roots of 1215864

1215864 squared (1215864²) is 1478325266496
1215864 cubed (1215864³) is 1797442471822892544
The square root of 1215864 is 1102.6622329617
The cube root of 1215864 is 106.7320866051

Scales and comparisons

How big is 1215864?

1,215,864 seconds is equal to 2 weeks, 1 hour, 44 minutes, 24 seconds.
To count from 1 to 1,215,864 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 1215864 cubic inches would be around 8.9 feet tall.

Recreational maths with 1215864

1215864 backwards is 4685121
1215864 is a Harshad number.
The number of decimal digits it has is: 7
The sum of 1215864's digits is 27
More coming soon!

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The information we have on file for 1215864 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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