Properties of the Number 76520

Seventy-Six Thousand Five Hundred Twenty

Basics

Value: 76519 → 76520 → 76521

Parity: even

Prime: No

Previous Prime: 76519

Next Prime: 76537

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 1913

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1913, 3826

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10010101011101000

Octal: 225350

Duodecimal: 38348

Hexadecimal: 12ae8

Square: 5855310400

Square Root: 276.6224864323217

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) is the numerator of the probability that the free polyomino with binary code A246521(n+1) appears as the image of a simple random walk on the square lattice. A367994

Number of length 4+1 0..n arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero. A250421

G.f. A(x) satisfies a(n) = [xⁿ] ( A(x)^n-1 - 2·A(x)ⁿ + A(x)ⁿ⁺¹ ) for n > 1, with a(0) = a(1) = 1. A384264

n appears once if n is the sum of 2 nonzero squares in 1 way, twice if n is the sum of 2 squares in 2 ways, 3 times if n is the sum of 2 squares 3 ways etc. A76520