Properties of the Number -29781

Twenty-Nine Thousand Seven Hundred Eighty-One

Basics

Value: -29782 → -29781 → -29780

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 1103

Divisors: 1, 3, 9, 27, 1103, 3309, 9927, 29781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010001010101

Octal: -72125

Duodecimal: -15299

Hexadecimal: -7455

Square: 886907961

Square Root: 172.57172421923588

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

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4. A252032

Sum over each antidiagonal of A248011. A248016

Number of unlabeled balanced semi-binary rooted trees with n nodes. A320270

Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4. A252028

a(n) = n³ - floor( n/3 ). A2901

Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4. A252024