Properties of the Number 64309

Sixty-Four Thousand Three Hundred Nine

Basics

Value: 64308 → 64309 → 64310

Parity: odd

Prime: No

Previous Prime: 64303

Next Prime: 64319

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 9187

Divisors: 1, 7, 9187, 64309

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101100110101

Octal: 175465

Duodecimal: 31271

Hexadecimal: fb35

Square: 4135647481

Square Root: 253.59219230883272

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 polyominoes with n cells, symmetric about diagonal 2. A56878

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 4. A251682

Number of polyominoes of n cells with both diagonal symmetries, for which the 180-degree rotational symmetry has an axis that coincides with the center of a square, but without 90-degree rotational symmetry. A351159

a(n) = 6·binomial(n,4) + 2·binomial(n,2) + 1. A341703

Number of (n+2)X(4+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 4. A251678

Number of (n+2) X (n+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3 X 3 subblock summing to 2 or 4. A251674

Row sums of triangle A064308. A64309