Properties of the Number 27838

Twenty-Seven Thousand Eight Hundred Thirty-Eight

Basics

Value: 27837 → 27838 → 27839

Parity: even

Prime: No

Previous Prime: 27827

Next Prime: 27847

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 31 × 449

Divisors: 1, 2, 31, 62, 449, 898, 13919, 27838

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110010111110

Octal: 66276

Duodecimal: 1413A

Hexadecimal: 6cbe

Square: 774954244

Square Root: 166.84723551800312

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 acute triangles, distinct up to congruence, on an n X n grid (or geoboard). A190021

a(1)=1, a(n) = a(n-1) + n⁴ if n odd, a(n) = a(n-1) + n³ if n is even. A140160

Numbers k such that 223·2^k+1 is prime. A32488

a(n) = 9 + floor( ∑_j=1..n-1 a(j)/3 ). A120154

Expansion of e.g.f. 1/( 1 - (1 + x) * log(1 + x) ). A362911

a(n) = n*(n²-2·n-1). A214446

Number of subgroups of index n in fundamental group of a certain fiber space. A27838