Properties of the Number 68581

Sixty-Eight Thousand Five Hundred Eighty-One

Basics

Value: 68580 → 68581 → 68582

Parity: odd

Prime: Yes

Previous Prime: 68567

Next Prime: 68597

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 68581

Divisors: 1, 68581

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000101111100101

Octal: 205745

Duodecimal: 33831

Hexadecimal: 10be5

Square: 4703353561

Square Root: 261.87974339379514

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 leaf nodes and without unary nodes or outdegrees larger than seven. A292213

Primes of the form 10n³-9. A201039

Numbers k such that k⁶ == 1 (mod 7⁵). A56103

Let phi_m(x) = φ(φ(...(φ(x))...)) m times; sequence gives values of k such that phi₄(k) = τ(k). A68581