Properties of the Number 68564

Sixty-Eight Thousand Five Hundred Sixty-Four

Basics

Value: 68563 → 68564 → 68565

Parity: even

Prime: No

Previous Prime: 68543

Next Prime: 68567

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 61 × 281

Divisors: 1, 2, 4, 61, 122, 244, 281, 562, 1124, 17141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000101111010100

Octal: 205724

Duodecimal: 33818

Hexadecimal: 10bd4

Square: 4701022096

Square Root: 261.8472837361503

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 unlabeled rooted trees with n nodes whose level sizes are strictly increasing away from the root. A393323

E.g.f. A(x) = 1/(2-tan(x)-sec(x)). A185323

Numbers k such that φ(k) = 2*τ(k)². A68564