Properties of the Number -1308

Three Hundred Eight

Basics

Value: -1309 → -1308 → -1307

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 109

Divisors: 1, 2, 3, 4, 6, 12, 109, 218, 327, 436

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10100011100

Octal: -2434

Duodecimal: -910

Hexadecimal: -51c

Square: 1710864

Square Root: 36.16628264005025

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

a(n) = (-6·n⁷ + 154·n⁶ - 1533·n⁵ + 7525·n⁴ - 18879·n³ + 22561·n² - 7302·n + 2520)/2520. A161710

Triangle of coefficients of (1 - x)ⁿ*U(n,-(3·x - 2)/(2·x - 2)), where U(n,x) is the n-th Chebyshev polynomial of the second kind. A123027

Expansion of ∏_k>0 theta₄(q^k)/theta₃(q^k), where theta₃() and theta₄() are the Jacobi θ functions. A320970

G.f.: (1+x+x²-sqrt(1+2x+3x²-2x³+x⁴))*2. A129507

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 419", based on the 5-celled von Neumann neighborhood. A272048

Triangle read by rows: coefficients of the characteristic polynomial of the n-th submatrix of A191898. A293147

Self-convolution of Fibonacci numbers. A1629

Numbers k such that Bernoulli number B_k has denominator 2730. A249134

|First digit - second digit + third digit - fourth digit ...| = 10. A60978

Narayana-Zidek-Capell numbers: a(n) = 1 for n <= 2. Otherwise a(2n) = 2a(2n-1), a(2n+1) = 2a(2n) - a(n). A2083