Properties of the Number -2667

Six Hundred Sixty-Seven

Basics

Value: -2668 → -2667 → -2666

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 127

Divisors: 1, 3, 7, 21, 127, 381, 889, 2667

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001101011

Octal: -5153

Duodecimal: -1663

Hexadecimal: -a6b

Square: 7112889

Square Root: 51.64300533470143

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

Expansion of ∏_m>=1 1/(1 + m·q^m)⁷. A22699

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 233", based on the 5-celled von Neumann neighborhood. A270979

Second pentagonal numbers: a(n) = n*(3·n + 1)/2. A5449

Triangle of Gaussian binomial coefficients (or q-binomial coefficients) [n,k] for q = 2. A22166

Gaussian binomial coefficient [n, 2] for q = 2. A6095

Sum of divisors of square numbers. A65764

Number of sublattices of index n in generic 3-dimensional lattice. A1001

Numbers that are a product of distinct Mersenne primes (elements of A000668). A46528

Array read by antidiagonals: T(n,k) is the number of sublattices of index n in generic k-dimensional lattice (n >= 1, k >= 1). A160870

Expansion of (1/(1-x²))*∏_m>=0 1/(1-x^2m+1). A38348