Properties of the Number -19357

Nineteen Thousand Three Hundred Fifty-Seven

Basics

Value: -19358 → -19357 → -19356

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 13 × 1489

Divisors: 1, 13, 1489, 19357

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -100101110011101

Octal: -45635

Duodecimal: -B251

Hexadecimal: -4b9d

Square: 374693449

Square Root: 139.12943613772032

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

Odd semiprimes k = p·q such that k = A325820(p,q), with p, q primes > 3, and A325820 is the carryless base-3 multiplication. A391331

G.f.: exp( ∑_n>=1 ∑_k>=1 σ(n)^k * x^n·k / n ). A185301

a(n) = (2·n³ + 5·n² + 7·n)/2. A162264

G.f. satisfies: A(x) = B(x·A(x)), where B(x) is the g.f. of A184506. A184508

Numbers k such that the continued fraction for sqrt(k) has period 49. A20388

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 107", based on the 5-celled von Neumann neighborhood. A270166

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 878", based on the 5-celled von Neumann neighborhood. A273741

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 13. A51978