Properties of the Number -19148

Nineteen Thousand One Hundred Forty-Eight

Basics

Value: -19149 → -19148 → -19147

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 4787

Divisors: 1, 2, 4, 4787, 9574, 19148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100101011001100

Octal: -45314

Duodecimal: -B0B8

Hexadecimal: -4acc

Square: 366645904

Square Root: 138.37629854855925

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

Array read by ascending antidiagonals: A(n, k) is the permanent of the n-th order Hankel matrix of Catalan numbers M(n) whose generic element is given by M(i,j) = A000108(i+j+k) with i,j = 0, ..., n-1. A368026

a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = Catalan(i+j). A278843

a(n) = 1 + ∑_k=0..n-5 a(k) * a(n-k-5). A346074

Least k such that decimal representation of k·n contains only digits 0 and 8. A96687

Least k such that decimal representation of k·n contains only digits 0 and 4. A96683

a(0)=1 and a(n) for n > 0 equals the minimal positive integer such that addition of 2^-a(n) to ∑_{k = 0,1,...,n-1} 2^-a(k) changes only trailing zeros in its decimal representation. A137284

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (odd natural numbers), t = (primes). A24603

Expansion of 1 / (1 + ∑_k>=1(-x)^Lucas(k)). A357384