Properties of the Number 6436

Six Thousand Four Hundred Thirty-Six

Basics

Value: 6435 → 6436 → 6437

Parity: even

Prime: No

Previous Prime: 6427

Next Prime: 6449

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 1609

Divisors: 1, 2, 4, 1609, 3218, 6436

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100100100

Octal: 14444

Duodecimal: 3884

Hexadecimal: 1924

Square: 41422096

Square Root: 80.22468448052632

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 twice-partitions of n with no repeated partitions. A296122

Nondescending wiggly sums: number of sums adding to n in which terms alternately do not decrease and do not increase. A129852

Main diagonal of A045847. A287617

Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = 9·x + 2. A257619

Number of set partitions of {1, 2, ..., 2·n} with sizes in {[n, n], [2n]}. A260878

p-INVERT of (1,1,1,1,1,...), where p(S) = 1 - S⁸. A290995

a(n) = binomial(n, floor(n/2)) + 1. A51920

Numbers m such that the decimal number concat(8,m) is a square. A273363

Numbers n such that n is a substring of its square in base 3 (written in base 10). A18827

Numbers that are the sum of five third powers in exactly seven ways. A345181