Properties of the Number 66404

Sixty-Six Thousand Four Hundred Four

Basics

Value: 66403 → 66404 → 66405

Parity: even

Prime: No

Previous Prime: 66403

Next Prime: 66413

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 13 × 1277

Divisors: 1, 2, 4, 13, 26, 52, 1277, 2554, 5108, 16601

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001101100100

Octal: 201544

Duodecimal: 32518

Hexadecimal: 10364

Square: 4409491216

Square Root: 257.68973592287296

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 initial digits of ternary π wherein the digit counts of zeros and ones are exactly equal. A278977

From expansion of Belyi function for icosahedron. A66404