Properties of the Number 30531

Thirty Thousand Five Hundred Thirty-One

Basics

Value: 30530 → 30531 → 30532

Parity: odd

Prime: No

Previous Prime: 30529

Next Prime: 30539

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 10177

Divisors: 1, 3, 10177, 30531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111011101000011

Octal: 73503

Duodecimal: 15803

Hexadecimal: 7743

Square: 932141961

Square Root: 174.7312221670758

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

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 249", based on the 5-celled von Neumann neighborhood. A280336

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1)*b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences. A295363

G.f. A(x) satisfies: the sum of the coefficients of x^k, k=0..n, in A(x)ⁿ equals ∑_k=0..n C(n,k)³ = A000172(n) (Franel numbers), for n>=0. A232687

Value of 3^x - 2^x - 5 for the solutions of 3^x - 2^x == 5 (mod 7). A30531