Properties of the Number -515

Five Hundred Fifteen

Basics

Value: -516 → -515 → -514

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: Yes

Factorization: 5 × 103

Divisors: 1, 5, 103, 515

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: -1000000011

Octal: -1003

Duodecimal: -36B

Hexadecimal: -203

Square: 265225

Square Root: 22.693611435820433

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

Coefficients of the 3rd-order mock θ function f(q). A25

FP1 polynomials related to the generating functions of the right hand columns of the A156920 triangle. A156921

Expansion of (1-x)^-1/(1 + 2·x - 2·x² - x³). A77916

Coefficient of q²ⁿ in the series expansion of Ramanujan's mock θ function f(q). A39

E.g.f. satisfies: A(x)² * log(A(x)) = 1 - exp(-x). A349656

Expansion of q * χ(-q³) * χ(-q⁵) / ( χ(-q²) * χ(-q³⁰) ) in powers of q where χ() is a Ramanujan θ function. A132967

G.f. of the z² coefficients of the FP1 in the third column of the A156921 matrix. A156929

Expansion of 1/( (1-x)*(1 + x² + x³) ). A77889

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min{i(j+1-1),j(i+1)-1} (A204000). A204001

a(n) = ∑_k=0..n (-n)^k * binomial(n+1,k) * binomial(n+1,k+1). A331795