Properties of the Number -29281

Twenty-Nine Thousand Two Hundred Eighty-One

Basics

Value: -29282 → -29281 → -29280

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 47 × 89

Divisors: 1, 7, 47, 89, 329, 623, 4183, 29281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111001001100001

Octal: -71141

Duodecimal: -14B41

Hexadecimal: -7261

Square: 857376961

Square Root: 171.11691909334974

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

Matrix inverse of A111636. A224069

Number of acyclic digraphs (or DAGs) with n labeled nodes. A3024

Bruckman-Lucas pseudoprimes: k | (L_k - 1), where k is composite and L_k = Lucas numbers A000032. A5845

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction. A250942

Odd composite integers m such that F(m)² == 1 (mod m), where F(m) is the m-th Fibonacci number. A337231

Sum of the legs of the unique primitive Pythagorean triple whose inradius is A000217(n) and such that its long leg and its hypotenuse are consecutive natural numbers. A383834

a(n) = ∑_{1 <= x₁, x₂, x₃, x₄ <= n} gcd(x₁, x₂, x₃, x₄, n)⁴. A372931

Bases in which 11 is a unique-period prime. A306076

G.f.: ∑_k>=0 x^k * ∏_j=1..3·k (1 + x^j)/(1 - x^j). A385089

Numbers k such that k¹⁰ == 1 (mod 11⁴). A56094