Properties of the Number 65825

Sixty-Five Thousand Eight Hundred Twenty-Five

Basics

Value: 65824 → 65825 → 65826

Parity: odd

Prime: No

Previous Prime: 65809

Next Prime: 65827

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 ² × 2633

Divisors: 1, 5, 25, 2633, 13165, 65825

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000000100100001

Octal: 200441

Duodecimal: 32115

Hexadecimal: 10121

Square: 4332930625

Square Root: 256.56383221335

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) = ∑_k=1..n (n/gcd(k,n))^gcd(k,n - 1). A342421

Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 3 X n array. A219520

a(n) = n² + 2^n-1. A362438

Numbers whose base-16 representation has exactly 5 runs. A43678

Smallest k such that n numbers may be picked in {1,...,k} with no three terms in arithmetic progression. A65825