Properties of the Number -2997

Nine Hundred Ninety-Seven

Basics

Value: -2998 → -2997 → -2996

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 37

Divisors: 1, 3, 9, 27, 37, 81, 111, 333, 999, 2997

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101110110101

Octal: -5665

Duodecimal: -1899

Hexadecimal: -bb5

Square: 8982009

Square Root: 54.74486277268398

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

The case S(-1,-2,3) of the family of self-convolutive recurrences studied by Martin and Kearney. A172485

Coefficients in the expansion of ([s] + [2s]x + [3s]x² + ...)/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = sqrt(3), s = sqrt(2). A279629

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 147", based on the 5-celled von Neumann neighborhood. A270293

Second 10-gonal (or decagonal) numbers: n*(4·n+3). A33954

Almkvist-Zudilin numbers: ∑_k=0..n (-1)^n-k * ((3^n-3·k * (3·k)!) / (k!)³) * binomial(n,3·k) * binomial(n+k,k). A125143

Triangular array giving number of labeled graphs on n unisolated nodes and k=0...n*(n-1)/2 edges. A54548

Numbers m such that m divides 10^m - 1. A14950

Number of planar partitions of n with all part sizes distinct. A117433

Numbers in base 10 that are palindromic in bases 7 and 8. A99145

Triangular array T(n,k) giving number of connected graphs with n labeled nodes and k edges (n >= 1, 0 <= k <= n(n-1)/2). A62734