Properties of the Number 66408

Sixty-Six Thousand Four Hundred Eight

Basics

Value: 66407 → 66408 → 66409

Parity: even

Prime: No

Previous Prime: 66403

Next Prime: 66413

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 2767

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 2767, 5534

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001101101000

Octal: 201550

Duodecimal: 32520

Hexadecimal: 10368

Square: 4410022464

Square Root: 257.69749707748423

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

Stirling transform (of the first kind) of the central Lah numbers (A187535). A187545

a(n) = floor(n^log(n)). A61567

Numbers such that the nonzero product of the digits of its 4th power is also a 4th power. A66734

a(n) = floor(7ⁿ/5ⁿ). A94984

Numbers n such that the Eisenstein integer (1 - ω)ⁿ - 1 has prime norm, where ω = -1/2 + sqrt(-3)/2. A66408

Number of nX4 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements. A282965