Properties of the Number 19340

Nineteen Thousand Three Hundred Forty

Basics

Value: 19339 → 19340 → 19341

Parity: even

Prime: No

Previous Prime: 19333

Next Prime: 19373

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 967

Divisors: 1, 2, 4, 5, 10, 20, 967, 1934, 3868, 4835

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100101110001100

Octal: 45614

Duodecimal: B238

Hexadecimal: 4b8c

Square: 374035600

Square Root: 139.06832852953974

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

Expansion of 1/(1 - x³ - x⁵ - x⁷ + x¹⁰), inverse of a Salem polynomial. A143472

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+967)² = y². A130017

a(n) = 7ⁿ - n⁹. A24084

Monotonic ordering of nonnegative differences 3ⁱ-7^j, for 40>= i>=0, j>=0. A192153

Solution (a(n)) of the complementary equation a(n) = 2·a(n-1) - a(n-2) + b(n); see Comments. A305129

First differences of A160379. A163989

Table with T(n,k) the number of word structures of length n which can be decomposed into k palindromes but not fewer. A188792

a(n) = a(n-1) + a(n-2) + 2 a(floor(n/2)) + 3 a(floor(n/3)) + ... + n a(floor(n/n)), where a(0) = 1, a(1) = 2, a(2) = 3. A298370

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 806", based on the 5-celled von Neumann neighborhood. A273608

Number of 2 X 2 matrices with all terms in {-n,...,0,...,n} and (sum of terms) = permanent. A280914