Properties of the Number 90162

Ninety Thousand One Hundred Sixty-Two

Basics

Value: 90161 → 90162 → 90163

Parity: even

Prime: No

Previous Prime: 90149

Next Prime: 90163

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5009

Divisors: 1, 2, 3, 6, 9, 18, 5009, 10018, 15027, 30054

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000000110010

Octal: 260062

Duodecimal: 44216

Hexadecimal: 16032

Square: 8129186244

Square Root: 300.26987860922713

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

Limit of the coefficient of x^{2^m+n} in B(x)ⁿ⁺¹/(n+1) as m grows, where B(x) = ∑_k>=0 x^{2^k}. A144691

Triangle read by rows: T(n,k) is number of paths from (0,0) to (3n,0) that stay in the first quadrant (but may touch the horizontal axis), consisting of steps u=(2,1),U=(1,2), or d=(1,-1) and have k pyramids (a pyramid is a sequence u^pd^p or U^pd^2p for some positive integer p, starting at the x-axis). A108445

Number of irreducible chord diagrams with 2n nodes. A699

Values of binomial(Fibonacci(2k)*Fibonacci(2k+1),Fibonacci(2k-1)*Fibonacci(2k)-1). A90162

Number of symmetric irreducible diagrams with 2n nodes. A4300