Properties of the Number 65605

Sixty-Five Thousand Six Hundred Five

Basics

Value: 65604 → 65605 → 65606

Parity: odd

Prime: No

Previous Prime: 65599

Next Prime: 65609

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 13121

Divisors: 1, 5, 13121, 65605

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000000001000101

Octal: 200105

Duodecimal: 31B71

Hexadecimal: 10045

Square: 4304016025

Square Root: 256.1347301714471

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

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 838", based on the 5-celled von Neumann neighborhood. A284241

A106486-encodings of combinatorial games with value 2. A125995

Number of idempotent 5 X 5 0..n matrices of rank 4. A224336

a(n) = ∑_{k=1..floor(sqrt(n))} 2^floor(n/k-k). A360303

Integers k such that the difference between the sum of nonprime numbers and the sum of prime numbers <= k is a square. A373945

T(n,k)=Number of idempotent n X n 0..k matrices of rank n-1. A224333

The (3ⁿ)-th composite number. A65605