Properties of the Number -1197

One Hundred Ninety-Seven

Basics

Value: -1198 → -1197 → -1196

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 19

Divisors: 1, 3, 7, 9, 19, 21, 57, 63, 133, 171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010101101

Octal: -2255

Duodecimal: -839

Hexadecimal: -4ad

Square: 1432809

Square Root: 34.597687784012386

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

Expansion of ∑_k>0 x^2·k/(1+x^k)³. A363022

Expansion of (∏_j>=1 (1-(-x)^j) - 1)⁹ in powers of x. A1487

INVERT transform of A002321, Mertens's function. A144031

Expansion of 1/(1 + x² + x³/(1 + x⁵ + x⁷/(1 + x¹¹ + x¹³/(1 + ... + x^prime(2·k)/(1 + x^prime(2·k+1) + ...))))), a continued fraction. A292801

Numerator of Bernoulli(n, -9/10). A159029

Triangle read by rows: T(0,0) = 1; T(n,k) = 2 T(n-1,k) - 3 T(n-1,k-1) + T(n-1,k-2) for k = 0..2n; T(n,k)=0 for n or k < 0. A318685

Triangle read by rows: T(0,0) = 1; T(n,k) = T(n-1,k) - 2·T(n-1,k-2) + T(n-1,k-3) for k = 0..3n; T(n,k)=0 for n or k < 0. A318686

arctan(sec(x)*tan(x))=x+3/3!*x³-15/5!*x⁵-1197/7!*x⁷-255/9!*x⁹... A12796

Triangle read by rows: coefficients of a Hermite-like set of recursive polynomials that appear by integration to be orthogonal using the substitution on the Hermite recursion of n->f(n) where f(n)=A000931[n] is the Padovan sequence. A137298

Numbers that are divisible by the product of their digits. A7602