Properties of the Number 27438

Twenty-Seven Thousand Four Hundred Thirty-Eight

Basics

Value: 27437 → 27438 → 27439

Parity: even

Prime: No

Previous Prime: 27437

Next Prime: 27449

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 17 × 269

Divisors: 1, 2, 3, 6, 17, 34, 51, 102, 269, 538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110101100101110

Octal: 65456

Duodecimal: 13A66

Hexadecimal: 6b2e

Square: 752843844

Square Root: 165.64419700067975

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

Lexicographically earliest unbounded aliquot-like sequence based on the Dedekind ψ function: a(1) = 318, a(n) = t(a(n-1)) where t(k) = A001615(k) - k. A323328

Aliquot sequence starting at 966. A14363

Numbers k such that k·Fibonacci(k) - 1 is prime. A134580

The Wiener index of the Dutch windmill graph D(5,n) (n>=1). A180579

a(0) = 1, a(n) = 19·n² + 2 for n>0. A10009

Number of partitions of n with equal nonzero number of parts congruent to each of 3 and 4 (mod 5). A35571

Largest prime factor of [e·2ⁿ]. A27438

Numerators of continued fraction convergents to sqrt(665). A42278

Denominators of continued fraction convergents to sqrt(665). A42279

Numbers k such that 4 + 5·k³ is a square. A152463