Properties of the Number -487

Four Hundred Eighty-Seven

Basics

Value: -488 → -487 → -486

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 487

Divisors: 1, 487

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111100111

Octal: -747

Duodecimal: -347

Hexadecimal: -1e7

Square: 237169

Square Root: 22.06807649071391

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 (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 9. A60028

G.f. satisfies: A(x) = 1/(1 - x) * ∏_k>0 A(x^2·k) / ∏_k>1 A(x^2·k-1). A321088

a(n) = 5ⁿ - n⁹. A24058

Expansion of 1/((1-x)*(1+x+2·x²-x³)). A77911

Expansion of g.f. (1+x²)/(1+x-x³). A104770

Expansion of 1/(∑_i>=0 q^2·i*(i+1)/∏_j=0..i (1 + q^2·j+1 + q^4·j+2)). A294600

Numerator generator for offsets from the quarter points of the Cantor ternary set to the center points of deleted middle thirds: 1 is in the list and if m is in the list -3m-4 and -3m+4 are in the list, which is ordered by absolute value. A355680

McKay-Thompson series of class 27e for the Monster group. A112168

a(n) = n² - 917·n + 9479. A161726

a(0)=0, a(1)=1, a(2)=2 and a(n) = a(n-1) - 2a(n-2) + a(n-3). A166117