Properties of the Number 68456

Sixty-Eight Thousand Four Hundred Fifty-Six

Basics

Value: 68455 → 68456 → 68457

Parity: even

Prime: No

Previous Prime: 68449

Next Prime: 68473

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 43 × 199

Divisors: 1, 2, 4, 8, 43, 86, 172, 199, 344, 398

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101101101000

Octal: 205550

Duodecimal: 33748

Hexadecimal: 10b68

Square: 4686223936

Square Root: 261.6409753842085

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

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime. A251950

The number of NE partitions of n (see Comments). A239329

Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime. A251946

Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime. A251948

Factorial expansion of ζ(7) = ∑_n>=1 a(n)/n!. A68456

Numbers n such that the sum of n consecutive positive cubes is a cube for some initial starting number k. A240970