Properties of the Number 87185

Eighty-Seven Thousand One Hundred Eighty-Five

Basics

Value: 87184 → 87185 → 87186

Parity: odd

Prime: No

Previous Prime: 87181

Next Prime: 87187

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 × 7 × 47 × 53

Divisors: 1, 5, 7, 35, 47, 53, 235, 265, 329, 371

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010010010001

Octal: 252221

Duodecimal: 42555

Hexadecimal: 15491

Square: 7601224225

Square Root: 295.2710619075293

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: T(n,k), n >=1, 0 <= k <= C(n,k), = number of n X n symmetric positive definite matrices with 2's on the main diagonal and 1's and 0's elsewhere and with k 1's above the diagonal. A80858

Number of parts that are visible in one of the three views of the shell model of partitions version "Tree" with n shells. A194803

Number of compositions (ordered partitions) of n³ into at most n cubes. A347591

a(n) = A175369(n²). A175370

Partition numbers of the form 3·k+2. A87185

Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 4 6 or 7. A252098