Properties of the Number -30471

Thirty Thousand Four Hundred Seventy-One

Basics

Value: -30472 → -30471 → -30470

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 1451

Divisors: 1, 3, 7, 21, 1451, 4353, 10157, 30471

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111011100000111

Octal: -73407

Duodecimal: -15773

Hexadecimal: -7707

Square: 928481841

Square Root: 174.55944546199729

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) = 2·Farey(m; I) - 1 where m = Fibonacci (n + 1) and I = [1/n, 1]. A176502

At stage 1, start with a unit equilateral equiangular triangle. At each successive stage add 3*(n-1) new triangles around outside with edge-to-edge contacts. Sequence gives number of triangles (regardless of size) at n-th stage. A64412

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 326", based on the 5-celled von Neumann neighborhood. A281109

Structured triakis octahedral numbers (vertex structure 4). A100171

Expansion of 1 / ((1+x)*(1-2·x)*(1-3·x)*(1-4·x)*(1-5·x)). A99111

Totally multiplicative sequence with a(p) = a(p-1) + 10 for prime p. A166707

The number of P-positions in the game of Nim with up to five piles, allowing for piles of zero, such that the total number of objects in all piles doesn't exceed 2n. A238147

Number of (n+1) X (3+1) 0..2 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2 X 2 subblock. A235879

Numbers k such that (2·10^k + 529)/9 is prime. A281734

Numbers n such that 123·2ⁿ-1 is prime. A50587