Properties of the Number 66426

Sixty-Six Thousand Four Hundred Twenty-Six

Basics

Value: 66425 → 66426 → 66427

Parity: even

Prime: No

Previous Prime: 66413

Next Prime: 66431

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 11071

Divisors: 1, 2, 3, 6, 11071, 22142, 33213, 66426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001101111010

Octal: 201572

Duodecimal: 32536

Hexadecimal: 1037a

Square: 4412413476

Square Root: 257.7324193810317

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 points on surface of truncated cube: a(n) = 46·n² + 2 for n > 0. A5911

a(1) = 1, a(2) = 3; for n > 1, a(n) = sum of the next two smallest integers > a(n-1) which are coprime to the sum s = a(1) + ... + a(n-1). A308669

Conjectured values for a(n) = least natural number k such that φ(n+k) = φ(n) + φ(k), if k exists; otherwise 0. A66426