Properties of the Number -51561

Fifty-One Thousand Five Hundred Sixty-One

Basics

Value: -51562 → -51561 → -51560

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 17 × 337

Divisors: 1, 3, 9, 17, 51, 153, 337, 1011, 3033, 5729

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100100101101001

Octal: -144551

Duodecimal: -25A09

Hexadecimal: -c969

Square: 2658536721

Square Root: 227.0704736419951

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 rooted trees with n nodes with every leaf at the same height. A48816

Number of monocyclic skeletons with n carbon atoms and a ring size of 6. A120779

a(n) = ∑_{k=0..floor(n/3)} 2^n-3·k * binomial(2·k+1,2·n-6·k+1). A387652