Properties of the Number -111

One Hundred Eleven

Basics

Value: -112 → -111 → -110

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 3

Digital Root: 3

Palindrome: Yes

Factorization: 3 × 37

Divisors: 1, 3, 37, 111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101111

Octal: -157

Duodecimal: -93

Hexadecimal: -6f

Square: 12321

Square Root: 10.535653752852738

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) = n - A162296(n), where A162296(n) is the sum of divisors of n that have a square factor. A325314

Values of n such that L(11) and N(11) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227449

n minus the Heinz number of the conjugate of the integer partition with Heinz number n. A352491

Signed denominators of Leibniz series for π/4. A157142

a(n) = nearest integer to n² * sin(sqrt(n)). A274088

Take alternate terms of A274088 and A274090. A274091

a(n) = nearest integer to k²*sin(sqrt(k)+j*π/2) where n = 3·k+j, 0<=j<3. A274092

Triangle T that satisfies the matrix products: C*[T^-1]*C = T and T*[C^-1]*T = C, where C is Pascal's triangle. A118801

Expansion of log(1+x)*exp(tanh(x)). A9420

Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. exp(k*(1 - exp(x))). A292861