Properties of the Number 65668

Sixty-Five Thousand Six Hundred Sixty-Eight

Basics

Value: 65667 → 65668 → 65669

Parity: even

Prime: No

Previous Prime: 65657

Next Prime: 65677

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 16417

Divisors: 1, 2, 4, 16417, 32834, 65668

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000000010000100

Octal: 200204

Duodecimal: 32004

Hexadecimal: 10084

Square: 4312286224

Square Root: 256.2576828116574

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

Indices of record high values in A061836. A333533

Numbers k such that 463·2^k+1 is prime. A323201

Largest even k such that h(-k) = 2n, where h(D) is the class number of the quadratic field with discriminant D; or 0 if no such k exists. A357573

Permutation of N induced by rotating the node 5 right in the infinite planar binary tree shown at A065658. A65668