Properties of the Number -19489

Nineteen Thousand Four Hundred Eighty-Nine

Basics

Value: -19490 → -19489 → -19488

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 19489

Divisors: 1, 19489

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110000100001

Octal: -46041

Duodecimal: -B341

Hexadecimal: -4c21

Square: 379821121

Square Root: 139.6030085635693

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

Partial sums of A299285. A299286

Fourth term of balanced prime quartets: p(m-2)-p(m-3) = p(m-1)-p(m-2) = p(m)-p(m-1). A54803

Last member of a sexy prime quadruple: value of p+18 such that p, p+6, p+12 and p+18 are all prime. A46124

Largest prime dividing the n-th Lucas number (A000032); 1 when no such prime exists. A79451

Order in which prime factors first occur in the Lucas sequence. A96362

Primes p of the form 2·prime(k) + 3 such that 2·prime(k+1) + 3 is the next prime after p. A89528

Prime differences of tribonacci numbers. A113239

G.f. A(x) satisfies: A(x) = 1 + x² * A(x/(1 - 4·x)) / (1 - 4·x). A351150

G.f.: ∑_k>=0 (1 + k·x)^k * x^3·k. A360707

Primes p that divide Fibonacci[(p-1)/7]. A125253