Properties of the Number 28814

Twenty-Eight Thousand Eight Hundred Fourteen

Basics

Value: 28813 → 28814 → 28815

Parity: even

Prime: No

Previous Prime: 28813

Next Prime: 28817

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 14407

Divisors: 1, 2, 14407, 28814

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000010001110

Octal: 70216

Duodecimal: 14812

Hexadecimal: 708e

Square: 830246596

Square Root: 169.74687036879354

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

a(n) = 2 * ∑_k=0..n-1 binomial(n-1, k)*binomial(n+k, k). A2003

Row sums of A123160. A123164

Coordination sequence for 7-dimensional cubic lattice. A8415

Convolution of A055852 with A011782. A55853

Number of symmetric Schroeder paths of length 2n (A Schroeder path of length 2n is a lattice path from (0,0) to (2n,0) consisting of U=(1,1), D=(1,-1) and H=(2,0) steps and never going below the x-axis). A110110

Expansion of ∏_k>=1 (1 + k²*x^k)/(1 - k²*x^k). A265844

Numbers k such that k*(k+3) is a palindrome. A28553

Number of points of L1 norm 7 in cubic lattice Zⁿ. A35601

Sum of terms in n-th row of A077164. A77167

Triangle read by rows: T(n,k) (0 <= k <= n) is the number of Delannoy paths of length n that start with exactly k (0,1) steps (or, equivalently, with exactly k (1,0) steps). A110171