218240

218,240 is an even composite number composed of four prime numbers multiplied together.

What does the number 218240 look like?

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

218240 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 218240:

2⁷ × 5 × 11 × 31

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 31)

See below for interesting mathematical facts about the number 218240 from the Numbermatics database.

Names of 218240

Cardinal: 218240 can be written as Two hundred eighteen thousand, two hundred forty.

Scientific notation

Scientific notation: 2.1824 × 10⁵

Factors of 218240

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 10
Sum of prime factors: 49

Divisors of 218240

Number of divisors d(n): 64
Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 31 32 40 44 55 62 64 80 88 110 124 128 155 160 176 220 248 310 320 341 352 440 496 620 640 682 704 880 992 1240 1364 1408 1705 1760 1984 2480 2728 3410 3520 3968 4960 5456 6820 7040 9920 10912 13640 19840 21824 27280 43648 54560 109120 218240
Sum of all divisors σ(n): 587520
Sum of proper divisors (its aliquot sum) s(n): 369280
218240 is an abundant number, because the sum of its proper divisors (369280) is greater than itself. Its abundance is 151040

Bases of 218240

Binary: 110101010010000000₂
Hexadecimal: 0x35480
Base-36: 4OE8

Squares and roots of 218240

218240 squared (218240²) is 47628697600
218240 cubed (218240³) is 10394486964224000
The square root of 218240 is 467.1616422613
The cube root of 218240 is 60.2066945459

Scales and comparisons

How big is 218240?

218,240 seconds is equal to 2 days, 12 hours, 37 minutes, 20 seconds.
To count from 1 to 218,240 would take you about two days.

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 218240 cubic inches would be around 5 feet tall.

Recreational maths with 218240

218240 backwards is 042812
The number of decimal digits it has is: 6
The sum of 218240's digits is 17
More coming soon!

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The information we have on file for 218240 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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