Properties of the Number 64469

Sixty-Four Thousand Four Hundred Sixty-Nine

Basics

Value: 64468 → 64469 → 64470

Parity: odd

Prime: No

Previous Prime: 64453

Next Prime: 64483

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 23 × 2803

Divisors: 1, 23, 2803, 64469

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101111010101

Octal: 175725

Duodecimal: 31385

Hexadecimal: fbd5

Square: 4156251961

Square Root: 253.9074634586388

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

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = ∑_j=0..n k^j*binomial(n,j)*Catalan(j). A340968

a(n) = ∑_k=0..n 4^k * binomial(n,k) * Catalan(k). A386387

Semiprimes with only semiprime digits, each appearing at least once. A349275

The even subsequence of A064413. A64469