Properties of the Number 51868

Fifty-One Thousand Eight Hundred Sixty-Eight

Basics

Value: 51867 → 51868 → 51869

Parity: even

Prime: No

Previous Prime: 51859

Next Prime: 51869

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 12967

Divisors: 1, 2, 4, 12967, 25934, 51868

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101010011100

Octal: 145234

Duodecimal: 26024

Hexadecimal: ca9c

Square: 2690289424

Square Root: 227.74547196376923

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

Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n; then a(n) is the trace of M(n)^-7. A114359

[ (4th elementary symmetric function of S(n))/(2nd elementary symmetric of S(n)) ], where S(n) = {3,4, ..., n+5}. A24194

Related to number of mesh patterns of length 2 that avoid the pattern 231 or 321. For details see the comment section. A289450

16-gonal (or hexadecagonal) numbers: a(n) = n*(7·n-6). A51868