Properties of the Number 40690

Forty Thousand Six Hundred Ninety

Basics

Value: 40689 → 40690 → 40691

Parity: even

Prime: No

Previous Prime: 40639

Next Prime: 40693

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 13 × 313

Divisors: 1, 2, 5, 10, 13, 26, 65, 130, 313, 626

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001111011110010

Octal: 117362

Duodecimal: 1B66A

Hexadecimal: 9ef2

Square: 1655676100

Square Root: 201.71762441591463

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

Number of distributive lattices; also number of paths with n turns when light is reflected from 12 glass plates. A30116

Number of 5-tuples (v1,v2,v3,v4,v5) of nonnegative integers less than n such that v1 <= v5, v2 <= v5, v2 <= v4 and v3 <= v4. A85461

Ordered product of the sides of primitive Pythagorean triangles divided by 60. A81752

Number of nondecreasing -n..n vectors of length 3 whose dot product with some other -n..n vector equals 3. A226342

∏_n>=1 (1 + a(n) * xⁿ) = 1 + ∑_n>=1 (n * (n + 1) / 2) * xⁿ. A359407

Continued fraction for sqrt(717). A40690