Properties of the Number -2730

Seven Hundred Thirty

Basics

Value: -2731 → -2730 → -2729

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 7 × 13

Divisors: 1, 2, 3, 5, 6, 7, 10, 13, 14, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101010101010

Octal: -5252

Duodecimal: -16B6

Hexadecimal: -aaa

Square: 7452900

Square Root: 52.24940191045253

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

G.f.: (1+x)/(1+x-2·x²). A151575

Triangle read by rows. G(n, k) an additive decomposition of 2ⁿ*G(n), G(n) the Genocchi numbers. A154344

Triangle read by rows, denominators of Jakob Bernoulli's "Sums of Powers" triangle. A159688

Expansion of ∏_k>=1 (1 - x^k)¹³. A10820

A generalized Jacobsthal sequence. A83944

Irregular triangle read by rows: first row is 1, n-th row (n > 0) consists of the coefficients in the expansion of H(x;n)*(x + 1)^{n - 1}/2^floor(n/2), where H(x;n) is the Hermite polynomial of order n. A171531

E.g.f. satisfies A(x) = x·exp( -A(x) + x·exp(-A(x)) ). A360442

Expansion of (1-x)/(1+x+2·x²+2·x³). A78052

Bi-diagonal inverse of (3n)!/(3k)!. A119832

A triangle of coefficients of A053122 type binomials {x,y},{y,z} and {z,x}, made using A_n Cartan type matrix characteristic polynomials: an(x,n) = CharacteristicPolynomial(M(A_n,n)); f(x,y,n) = Sum[Coefficients(an[x,n)*xⁱ*y^n-i,{i,0,n}]; p(x,y,z,n) = f(x,y,n) + f(y,z,n) + f(z,x,n). A139584