Properties of the Number 86958

Eighty-Six Thousand Nine Hundred Fifty-Eight

Basics

Value: 86957 → 86958 → 86959

Parity: even

Prime: No

Previous Prime: 86951

Next Prime: 86959

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 4831

Divisors: 1, 2, 3, 6, 9, 18, 4831, 9662, 14493, 28986

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101001110101110

Octal: 251656

Duodecimal: 423A6

Hexadecimal: 153ae

Square: 7561693764

Square Root: 294.8864188123963

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

Indices where the cumulative sum of sin(2k+1)^2k+1 reaches a record low value. A387730

G.f. A(x) satisfies A(x) = 1 / ((1 + x) * (1 - x * (1 + x) * A(x²))). A367716

Fibonacci sequence beginning 3, 11. A22123

Number of ways to place 5 nonattacking nightriders on a 5 X n board. A172220

a(0) = 1; a(n) = ∑_{k=0..floor(n/3)} binomial(n-2·k,k) * a(k). A352039

m such that A086956(m)=n and A086956(k)=n for exactly one k<m (k=A086957(n)). A86958