Properties of the Number 18324

Eighteen Thousand Three Hundred Twenty-Four

Basics

Value: 18323 → 18324 → 18325

Parity: even

Prime: No

Previous Prime: 18313

Next Prime: 18329

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 509

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 509

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011110010100

Octal: 43624

Duodecimal: A730

Hexadecimal: 4794

Square: 335768976

Square Root: 135.36617007214173

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) is the decimal concatenation of n and n². A53061

Sixth column of triangle A055252. A55582

Triangular array formed by the Mersenne numbers. A110441

Sum of the largest parts of the partitions of n into 4 parts. A308760

Triangle read by rows, A007318·A153198. A153199

Number of Fermat pseudoprimes to base 2 between 2ⁿ and 2ⁿ⁺¹ that are not Carmichael numbers. A252943

Numbers k such that the largest prime divisor of k⁴+1 is less than k. A309562

T(n, k) = binomial(2·n - 1 - k, k - 1)*hypergeom([2, 2, 1-k], [1, 1 - 2·k + 2·n], -1), triangle read by rows, T(n, k) for n >= 1 and 1 <= k <= n. A320905

Expansion of e.g.f. 1/(1 + x/3·log(1 - 3·x)). A354316

Numbers k that end with ( sum of digits of k )². A270343