Properties of the Number 12827

Twelve Thousand Eight Hundred Twenty-Seven

Basics

Value: 12826 → 12827 → 12828

Parity: odd

Prime: No

Previous Prime: 12823

Next Prime: 12829

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 101 × 127

Divisors: 1, 101, 127, 12827

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11001000011011

Octal: 31033

Duodecimal: 750B

Hexadecimal: 321b

Square: 164531929

Square Root: 113.25634640054393

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

a(n) = (4·n³ - 9·n² + 11·n + 3)/3. A161707

Expansion of 2/(sqrt(1-2·x-3·x²)*(1+x+sqrt(1-2·x-3·x²))). A113682

Number of factorizations of m² into 2 factors, where m is a product of exactly n distinct primes and each factor is a product of n primes (counted with multiplicity). A257520

Semiprimes whose prime factors are of equal binary length and which differ from each other in exactly three bit positions. A261075

Symmetric matrix based on A007598(n+1), by antidiagonals. A203003

Squarefree numbers (A005117) of form prime(k)*q where q = primes of the form prime(k) + k. A232170

Expansion of ∏_{1 <= i₁ <= i₂ <= i₃ <= i₄} (1 + x^{i₁*i₂*i₃*i₄}). A321567

a(1) = 1; for n > 1, a(n) is the least odd number k such that A325567(k) = 2·n-1, or 0 if no such number exists. A379128

Squarefree numbers (A005117) with prime factors in a prime(k) + k progression. A232169

a(n) = A277715(n) / 3. A277716