Properties of the Number -1098

Ninety-Eight

Basics

Value: -1099 → -1098 → -1097

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 61

Divisors: 1, 2, 3, 6, 9, 18, 61, 122, 183, 366

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001001010

Octal: -2112

Duodecimal: -776

Hexadecimal: -44a

Square: 1205604

Square Root: 33.13608305156178

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) = ∑_k=0..n-1 7^k*B(k)*binomial(n,k) where B(k) is the k-th Bernoulli number. A83011

Coefficients of the eighth-order mock θ function T₁(q). A153156

Expansion of ψ(x)² * φ(-x)⁶ in powers of·where φ(), ψ() are Ramanujan θ functions. A227695

Triangle, read by rows, where the n-th row lists the (2·n+1) coefficients of (1 + x - 3·x²)ⁿ. A84614

Expansion of ∏_k>=0 1/(1 + x^4·k+1)^4·k+1. A285287

Expansion of g.f. x / reversion(x - x² - x³). A217596

Inverse of a Delannoy related triangle. A113141

Expansion of 1/(∑_i>=0 q^2·i*(i+1)/∏_j=0..i (1 - q^2·j+1)²). A294599

a(n) = A023194 - A062700(n). Negative values of A071166(m) = m-A006530(A000203(m)) differences. In these cases m is square number from A023194. A71167

a(n,m) =Floor[N[(-2 + Sqrt[3])ⁿ + (-2 - Sqrt[3])ⁿ]/2^m]. A117809