Properties of the Number 27850

Twenty-Seven Thousand Eight Hundred Fifty

Basics

Value: 27849 → 27850 → 27851

Parity: even

Prime: No

Previous Prime: 27847

Next Prime: 27851

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 ² × 557

Divisors: 1, 2, 5, 10, 25, 50, 557, 1114, 2785, 5570

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110011001010

Octal: 66312

Duodecimal: 1414A

Hexadecimal: 6cca

Square: 775622500

Square Root: 166.88319268278636

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

Triangle, read by rows, given by the product R³*P^-1 using triangular matrices P=A113370, R=A113389. A114152

Triangle, read by rows, equal to the matrix square of A113370. Also given by the product: P² = Q*(R^-2)*Q³, using triangular matrices P=A113370, Q=A113381 and R=A113389. A113374

a(n) = prime(n)² - n. A182174

Number of symmetry classes of 3 X 3 magilatin squares with positive values < n. A173729

Column 1 of triangle A113374, also equals column 0 of A113381⁴. A113376

Numbers n such that 11ⁿ - 2 is prime. A133982

Number of cycles in the n-Apollonian network. A302718

G.f. A(x) satisfies: A(x) = A(x² + 2·x³) / x. A389536

Numbers n such that n·359# +-1 are twin primes, where 359# = 72nd primorial (A002110(72)). A87907

a(n) = (n+1)*(14·n³+13·n²+6·n+1). A27850