Properties of the Number 27976

Twenty-Seven Thousand Nine Hundred Seventy-Six

Basics

Value: 27975 → 27976 → 27977

Parity: even

Prime: No

Previous Prime: 27967

Next Prime: 27983

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 13 × 269

Divisors: 1, 2, 4, 8, 13, 26, 52, 104, 269, 538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110101001000

Octal: 66510

Duodecimal: 14234

Hexadecimal: 6d48

Square: 782656576

Square Root: 167.2602762164406

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

Reversion of sequence of involutions (A000085). A50397

Number of unrooted achiral trees with n nodes. A3244

Number of 5-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions. A187300

Number of distinct resistances that can be produced from a circuit that is a 2-connected loopless multigraph with n edges and each edge having a unit resistor. A363240

Number of irreducible conic curves containing 6 points of a cyclic order n-torsion subgroup of an elliptic curve. A379920

n-th diagonal sum of right justified array T given by A027960. A27976

a(n) = |{0 < k <= n: π(π(k·n)) is a square}|, where π(x) denotes the number of primes not exceeding x. A238902

a(n) = [xⁿ] G(x)ⁿ, where G(x) is the o.g.f. of A079489. A333563

Number of nX3 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,1,0,2,3 for x=0,1,2,3,4. A196945