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Number 18

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Number 18 consists of 2 digits. Number 18 expressed in English words is "eighteen". Number 18 read digit by digit is "one eight". Number 18 is an even number. Number 18 is divisible by: two, three, six, nine. Number 18 is a composite number (not a prime number).

Number 18 in hexadecimal (hexa) code: 12
Number 18 in octal code: 22
Number 18 in binary code: 10010
Number 18 converted to Roman numbers: XVIII

Number 18 divided by 2 equals 9. Number 18 multiplied by 2 equals 36. Number 18 multiplied by 10 equals 180. The sum of all digits is 9. The digiral root (repeated digital sum) is 9. Number 18 raised to the power of 2 equals 324. Number 18 raised to the power of 3 equals 5832. The square root of number 18 is 4.2426406871193. The sine of 18 degree is 0.30901699437495. The cosine of 18 degree is 0.95105651629515. The base-10 logarithm of 18 is 1.2552725051033. The natural logarithm of 18 is 2.8903717578962. The number 2 raised to the power of 18 equals 262144.

Numbers simmilar to 18 (one digit different): 8281719

Pair swap combinations for 18: 81

Number 18 typos with one digit doubled: 118188



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Next number: 19


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