Properties of the Number 28318

Twenty-Eight Thousand Three Hundred Eighteen

Basics

Value: 28317 → 28318 → 28319

Parity: even

Prime: No

Previous Prime: 28309

Next Prime: 28319

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 14159

Divisors: 1, 2, 14159, 28318

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111010011110

Octal: 67236

Duodecimal: 1447A

Hexadecimal: 6e9e

Square: 801909124

Square Root: 168.27952935517737

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 length n inversion sequences avoiding the patterns 100, 110, 120, 201, and 210. A279565

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with every element equal to at least one horizontal or vertical neighbor and the top left element equal to 0. A267901

Numbers m such that there exists a j for which m = ∑_k=1..j (m mod k), where k runs through the largest j primes less than m. A274422

a(n) = floor(binomial(n,5)/6). A11843

Numerators of continued fraction convergents to sqrt(468). A41892

Numbers k such that A001414(k) is a square and sets a new record for squares. A64463

Consecutive terms of A065966 which are also consecutive integers. A65976

Number of 3Xn arrays containing n copies of 0..3-1 with every element equal to at least one horizontal or vertical neighbor and the top left element equal to 0. A267903

a(n) is the least k such that ∑_j=1..k 1/(j^{1 + 1/j}) >= n. A364415

T(n,k)=Number of distinct values of the sum of n products of three 0..k integers. A225258