Properties of the Number -1235

Two Hundred Thirty-Five

Basics

Value: -1236 → -1235 → -1234

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 5 × 13 × 19

Divisors: 1, 5, 13, 19, 65, 95, 247, 1235

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011010011

Octal: -2323

Duodecimal: -86B

Hexadecimal: -4d3

Square: 1525225

Square Root: 35.14256678161116

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

Table (read by rows) giving the coefficients of sum formulas of n-th Lucas numbers (A000204). The k-th row (k>=1) contains T(i,k) for i=1 to k, where k=[2·n+1+(-1)^n-1]/4 and T(i,k) satisfies L(n) = ∑_i=1..k T(i,k) * n^k-i / (k-1)!. A101032

a(n) = 5·a(n-1) - 6·a(n-2) + a(n-3) with a(0)=1, a(1)=0, a(2)=-2. A215695

Sequence is {a(0,n)}, where a(m,0)=1, a(m,n) = a(m-1,n)+a(m,n-1) and a(0,n+1) is such that a(n+1,n+1) = a(0,n). A111518

Expansion of 3·q * b(q⁹)³ / c(q³) in powers of q³ where b(), c() are cubic AGM θ functions. A279005

Coefficients in the expansion of ([s] + [2s]x + [3s]x² + ...)/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = sqrt(2), s = sqrt(3). A279628

Triangle T(n,k) = A053120(n,k)+binomial(n,k) read by rows, 0<=k<=n. A137423

Numerator of Bernoulli(n, -1/4). A157819

Values of n such that L(3) and N(3) 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. A226923

Values of n such that L(5) and N(5) 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. A226925

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 465", based on the 5-celled von Neumann neighborhood. A272317