Properties of the Number 27839

Twenty-Seven Thousand Eight Hundred Thirty-Nine

Basics

Value: 27838 → 27839 → 27840

Parity: odd

Prime: No

Previous Prime: 27827

Next Prime: 27847

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 × 41 × 97

Divisors: 1, 7, 41, 97, 287, 679, 3977, 27839

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110010111111

Octal: 66277

Duodecimal: 1413B

Hexadecimal: 6cbf

Square: 775009921

Square Root: 166.85023224436938

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

Composite numbers n such that bⁿ⁺¹ == 1 (mod n) for every b coprime to n. A208728

Numbers k such that 2^k+1 == 1 (mod k). A187787

Pell pseudoprimes: odd composite numbers n such that P(n)-Kronecker(2,n) is divisible by n. A99011

Expansion of x*(1+x)/(x²-30·x+1). A157878

Denominators of continued fraction convergents to sqrt(14). A41021

Composite numbers k such that Pell(k) == 1 (mod k). A319042

a(n) = floor(11ⁿ/9ⁿ). A94997

Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k LDU's (n >= 0; 0 <= k <= floor((n-1)/3) for n >= 1). A128735

Denominators of the convergents to sqrt(14)/2 = A294969. A295337

Number of series-reduced palindromic plane trees with n nodes. A319437