Properties of the Number 80518

Eighty Thousand Five Hundred Eighteen

Basics

Value: 80517 → 80518 → 80519

Parity: even

Prime: No

Previous Prime: 80513

Next Prime: 80527

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 127 × 317

Divisors: 1, 2, 127, 254, 317, 634, 40259, 80518

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011101010000110

Octal: 235206

Duodecimal: 3A71A

Hexadecimal: 13a86

Square: 6483148324

Square Root: 283.75693824116445

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

Number of ways to dissect a 2·n X 2·n chessboard into two polyominoes each of area 2·n². A348456

Decimal part of a(n)^1/2 starts with a 'nine digits' anagram. A34277

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order. A204572

Irregular triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n²) is the number of ways to tile an n X n chessboard with k rook-connected polyominoes of equal area. A348452

Irregular triangle read by rows: T(n,k) (n >= 1, 1 <= k <= number of divisors of n²) is the number of ways to tile an n X n chessboard with d_k rook-connected polyominoes of equal area, where d_k is the k-th divisor of n². A348453

Irregular triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n²) is the number of ways to tile an n X n chessboard with rook-connected polyominoes of area k. A348454

Irregular triangle read by rows: T(n,k) (n >= 1, 1 <= k <= number of divisors of n²) is the number of ways to tile an n X n chessboard with rook-connected polyominoes of area d_k, where d_k is the k-th divisor of n². A348455

Number of (n+1) X 3 0..3 arrays with every 2 X 2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order. A204566

Number of (n+1)X5 0..3 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order. A204568

Number of ways to partition an n X 6 grid into 2 connected equal-area regions. A167252