Properties of the Number -2947

Nine Hundred Forty-Seven

Basics

Value: -2948 → -2947 → -2946

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 421

Divisors: 1, 7, 421, 2947

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101110000011

Octal: -5603

Duodecimal: -1857

Hexadecimal: -b83

Square: 8684809

Square Root: 54.286278192559855

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

Numerators of coefficients of polynomials arising from applying the complete Bell polynomials to k!B_k(x)/(k*(k-1)) with B_k(x) the Bernoulli polynomials. A276996

G.f.: ∏_i>=1 (1 - 2*(-x)ⁱ)/(1 - (-x)ⁱ)². A104510

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 417", based on the 5-celled von Neumann neighborhood. A272019

Partial sums of A299281. A299282

Indices of primes at which the prime race 4k-1 vs. 4k+1 is tied. A38691

Expansion of 1/(1 - x⁵ - x⁶ - x⁷ - x⁸ + x¹³). A173924

Powers of cube root of 20 rounded to nearest integer. A18034

Powers of cube root of 20 rounded down. A18033

E.g.f.: exp(2·x)/sqrt(1-2·x). A81367

a(n) = 70·n - 63. A139264