Properties of the Number 6431

Six Thousand Four Hundred Thirty-One

Basics

Value: 6430 → 6431 → 6432

Parity: odd

Prime: No

Previous Prime: 6427

Next Prime: 6449

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 59 × 109

Divisors: 1, 59, 109, 6431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100011111

Octal: 14437

Duodecimal: 387B

Hexadecimal: 191f

Square: 41357761

Square Root: 80.19351594736322

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

Triangle read by rows: T(n,k) = number of k-covers of a labeled n-set, k=1..2ⁿ-1. A55154

Expansion of ∏_k>=1 (1 + x^2·k-1)^k. A263140

Let p and q be two prime numbers, not necessarily consecutive, such that q - p = 2n; a(n) is the number of distinct partitions of 2n into even numbers so that each partition corresponds to a consecutive prime difference pattern (k-tuple) and p<=A000230(n). Multiple occurrences of a partition are not counted. A79024

Numbers n such that xⁿ + x³ + x² + x + 1 is irreducible over GF(2). A57496

Total number of parts coprime to n in the partitions of n into 8 parts. A363326

Odd composite integers m such that A006190(m)² == 1 (mod m). A337234

Numbers formed by the rightmost decimal digits of n^nⁿ that are the same as those of n^{n^(nⁿ}). A369624

Numbers that are the product of two distinct primes a and b, such that a³+b³ is the average of a twin prime pair. A176876

Consider a partition of the plane (a₁,a₂) in R X R by the lines a₁*x₁ + a₂*x₂ = 1 for 0 <= x₁ <= m-1, 1 <= x₂ <= 1-1. The cells are (generalized) triangles and quadrilaterals. Triangle read by rows: T(m,n) = total number of edges in the partition for m >= n >= 2. A332372

Numbers k such that k(3k-2) is an octagonal palindrome. A57106