Properties of the Number 87145

Eighty-Seven Thousand One Hundred Forty-Five

Basics

Value: 87144 → 87145 → 87146

Parity: odd

Prime: No

Previous Prime: 87133

Next Prime: 87149

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 29 × 601

Divisors: 1, 5, 29, 145, 601, 3005, 17429, 87145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010001101001

Octal: 252151

Duodecimal: 42521

Hexadecimal: 15469

Square: 7594251025

Square Root: 295.2033197645311

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 (n+2) X (3+2) 0..1 arrays with every 3 X 3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254902

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254907

Number of distinct disconnected simple symmetric graphs on n nodes. A87145