Properties of the Number 83620

Eighty-Three Thousand Six Hundred Twenty

Basics

Value: 83619 → 83620 → 83621

Parity: even

Prime: No

Previous Prime: 83617

Next Prime: 83621

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 37 × 113

Divisors: 1, 2, 4, 5, 10, 20, 37, 74, 113, 148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100011010100100

Octal: 243244

Duodecimal: 40484

Hexadecimal: 146a4

Square: 6992304400

Square Root: 289.1712295509358

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

a(n) = (n+1)*F(n), F(n) = Fibonacci numbers A000045. A99920

a(n) = σ(n)*Fibonacci(n), where σ(n) = A000203(n), the sum of divisors of n. A203848

Fibonacci sequence beginning 0, 20. A22354

Number of triangles in a Star of David of size n. A299965

Trajectory of 1 under map n->19n+1 if n odd, n->n/2 if n even. A33966

Trajectory of 3 under map n->19n+1 if n odd, n->n/2 if n even. A37107

Irregular triangle read by rows: row n consists of the coefficients in the expansion of the polynomial x*(x² - 2) + x*(((v - w)/2)ⁿ + ((v + w)/2)ⁿ), where v = 3 + 2·x and w = sqrt(5 + 4·x). A316659

Coefficients of a generalized Jaco-Lucas polynomial (even indices) read by rows. A122076

Starting positions of strings of three 5's in the decimal expansion of π. A83620