Properties of the Number 8279

Eight Thousand Two Hundred Seventy-Nine

Basics

Value: 8278 → 8279 → 8280

Parity: odd

Prime: No

Previous Prime: 8273

Next Prime: 8287

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 17 × 487

Divisors: 1, 17, 487, 8279

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001010111

Octal: 20127

Duodecimal: 495B

Hexadecimal: 2057

Square: 68541841

Square Root: 90.98901032542337

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

Lucas and Lehmer numbers with parameters (1 +- sqrt(-7))/2. A107920

a(n) = -a(n-1) - 2·a(n-2). A1607

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 5 6 or 7. A252574

a(n) is the unique odd positive solution·of 2ⁿ = 7x²+y². A77020

a(n) = 4·n² + 4·n - 1. A73577

Numbers k such that φ(k) is a perfect 5th power. A78165

a(0) = 1; a(n+1) = a(n) + ∑_i=0..n binomial(n,i)*(a(i)+1). A60719

Expansion of (1 + 2·x)/(1 + 3·x + 4·x²). A87168

Row sums of the Riordan array (1-4·x+4·x², x*(1-2·x)) (A167431). A167433

Number of non-Fibonacci parts in the last section of the set of partitions of n. A144118