Properties of the Number 78478

Seventy-Eight Thousand Four Hundred Seventy-Eight

Basics

Value: 78477 → 78478 → 78479

Parity: even

Prime: No

Previous Prime: 78467

Next Prime: 78479

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 39239

Divisors: 1, 2, 39239, 78478

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001010001110

Octal: 231216

Duodecimal: 394BA

Hexadecimal: 1328e

Square: 6158796484

Square Root: 280.1392510877403

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 n X n symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order, and no more than 4 ones in any row or column. A162059

Number of rational knots of n crossings with signature 0 (chiral pairs counted twice). A78478

New tetradiagonal form matrix as triangular sequence from solution of : X(n,m)=Steinbach(n,m)^-1.tri-Antidiagonal₁(n,n). A124020