Properties of the Number 28471

Twenty-Eight Thousand Four Hundred Seventy-One

Basics

Value: 28470 → 28471 → 28472

Parity: odd

Prime: No

Previous Prime: 28463

Next Prime: 28477

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 71 × 401

Divisors: 1, 71, 401, 28471

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111100110111

Octal: 67467

Duodecimal: 14587

Hexadecimal: 6f37

Square: 810597841

Square Root: 168.73351771358293

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) = number of regions in the configuration A290447(n). A290865

Row sums of triangle A035342 and array A134144. A49118

Number of integers less than the (n+1)-th primorial such that the maximal exponent in their prime factorization is not less than the maximal digit in their primorial base expansion. A351070

Composite numbers n such that k! == 1 (mod n) for some k > 2. A49048

Strong pseudoprimes to base 72. A20298

Number of binary strings of length n with equal numbers of 00011 and 01001 substrings. A164230

Number of perfect matchings (or domino tilings) in the graph P₉ X P_2n. A28471

Array read by antidiagonals upwards: A(n,k) is the number of nonequivalent positions in the KRvK endgame on an n X n chessboard with DTM (distance to mate) k, n >= 3, k >= 0. A358339