Properties of the Number 51831

Fifty-One Thousand Eight Hundred Thirty-One

Basics

Value: 51830 → 51831 → 51832

Parity: odd

Prime: No

Previous Prime: 51829

Next Prime: 51839

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 443

Divisors: 1, 3, 9, 13, 39, 117, 443, 1329, 3987, 5759

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100101001110111

Octal: 145167

Duodecimal: 25BB3

Hexadecimal: ca77

Square: 2686452561

Square Root: 227.66422643885008

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 reduced words of length n in the Weyl group D₃₂. A162379

Number of reduced words of length n in the Weyl group B₃₂. A161987

a(n) = Fibonacci(prime(n)) mod prime(n), where prime(n) is the n-th prime. A51831

Indices where the cumulative sum of sin(2k+1)^2k+1 reaches a record high value. A387706