Properties of the Number 51423

Fifty-One Thousand Four Hundred Twenty-Three

Basics

Value: 51422 → 51423 → 51424

Parity: odd

Prime: No

Previous Prime: 51421

Next Prime: 51427

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 61 × 281

Divisors: 1, 3, 61, 183, 281, 843, 17141, 51423

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100100011011111

Octal: 144337

Duodecimal: 25913

Hexadecimal: c8df

Square: 2644324929

Square Root: 226.76639962745804

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 labeled semitransitive orders on n elements: (1+3)-free posets. A79145

Number of compositions of n having exactly seven fixed points. A240742

List of André permutations of the second kind. A278983

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 29 ones. A31797

Indices of primes in sequence defined by A(0) = 91, A(n) = 10·A(n-1) + 41 for n > 0. A101009

Numbers k such that 39·2^k + 5 is prime. A393387

Double factorials n!!: a(n) = n·a(n-2) for n > 1, a(0) = a(1) = 1. A6882

Number of all trees of weight n, where nodes have positive integer weights and the sum of the weights of the children of a node is equal to the weight of the node. A118376

Number of graceful permutations of length n. A6967

Number of permutations σ of [n] without fixed points such that σ¹⁰ = Id. A261381