Eighteen in Urdu Counting is called اٹھارہ (aṭṭhārah).
اٹھارہ (aṭṭhārah) ۱۸
Number |
18 |
Binary Palindrome |
No (10010 is not the same forwards and backwards) |
Binary Representation |
10010 |
Cube |
18 * 18 * 18 = 5832 |
Decimal Equivalent of 12 in Hex |
18 |
Divisibility Rules |
18 is divisible by 1, 2, 3, 6, 9, and 18 |
Divisors |
1, 2, 3, 6, 9, 18 |
Factors |
1, 2, 3, 6, 9, 18 |
Hexadecimal Representation |
12 |
Mathematical Significance |
18 is a composite number, the sum of the first three triangular numbers (1 + 3 + 6 = 18) |
Ordinal |
Eighteenth |
Palindromic |
No (not read the same forwards and backwards) |
Prime Factorization |
2 * 3^2 |
Product of Digits |
1 * 8 = 8 |
Roman Numeral |
XVIII |
Square |
18 * 18 = 324 |
Sum of Digits |
1 + 8 = 9 |
Symmetrical |
No (rotational symmetry of 180 degrees) |
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