Properties of the Number 27289

Twenty-Seven Thousand Two Hundred Eighty-Nine

Basics

Value: 27288 → 27289 → 27290

Parity: odd

Prime: No

Previous Prime: 27283

Next Prime: 27299

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 29 × 941

Divisors: 1, 29, 941, 27289

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110101010011001

Octal: 65231

Duodecimal: 13961

Hexadecimal: 6a99

Square: 744689521

Square Root: 165.19382555047267

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 partitions p of n such that (number of numbers of the form 3k+2 in p) is a part of p. A241548

Least semiprime composed of a square and a positive cube in n different ways. A122956

Numbers z such that x² + y⁶ = z² (with positive integers·and y) and gcd(x, y, z) = 1. A293691

Number of simple labeled graphs on 2n nodes with all even size components. A218377

Smaller of two consecutive semiprimes which are anagrams of each other. A228135

Number of compositions (ordered partitions) of n into at most 6 prime powers (including 1). A347776

Least squarefree number that is the sum of a nonzero square and a positive cube in exactly n ways. A274053

Number of ways to write n as sum of a positive square and a positive cube. A78359

a(n) = ∑_{k=0..floor(n/2)-1} T(n,k) * T(n,k+2), with T given by A026009. A27289

Sum of a positive square and a positive cube in at least three ways. A171385