Properties of the Number -308

Three Hundred Eight

Basics

Value: -309 → -308 → -307

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 7 × 11

Divisors: 1, 2, 4, 7, 11, 14, 22, 28, 44, 77

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110100

Octal: -464

Duodecimal: -218

Hexadecimal: -134

Square: 94864

Square Root: 17.549928774784245

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

Partial alternating sums of the Dedekind ψ function (A001615): a(n) = ∑_k=1..n (-1)^k+1 * ψ(k). A357817

T(n, m), numerators of coefficients in a power/Fourier series expansion of the plane pendulum's exact differential time dependence. A274076

Coefficients of the '6th-order' mock θ function 2 μ(q). A53273

McKay-Thompson series of class 20C for the Monster group with a(0) = -2. A145740

Expansion of r(q)² / r(q²) in powers of q where r() is the Rogers-Ramanujan continued fraction. A285349

a(1) = 0, a(2) = -2; for n > 2, a(n) + a(n-2) - a(n-3) - a(n-5) - ... - a(n-p) = (-1)ⁿ⁺¹*n if n is prime, otherwise = 0, where p = largest prime < n. A2120

Discriminants of quadratic number fields Q(sqrt -n) for n squarefree. A33197

Sequence is {a(2,n)}, where a(m,n) is defined at sequence A111518. A111520

Coefficient table for sums of squares of Chebyshev's S-Polynomials. A128495

Expansion of ∏_n>0 ((1-xⁿ)/(1+xⁿ))^n³ in powers of x. A285990