Properties of the Number 19486

Nineteen Thousand Four Hundred Eighty-Six

Basics

Value: 19485 → 19486 → 19487

Parity: even

Prime: No

Previous Prime: 19483

Next Prime: 19489

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 9743

Divisors: 1, 2, 9743, 19486

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100110000011110

Octal: 46036

Duodecimal: B33A

Hexadecimal: 4c1e

Square: 379704196

Square Root: 139.59226339593465

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

Integers m, with k digits, such that m = ∑_i=1..k A066417(m without its i-th digit). A372753

Number of base 14 circular n-digit numbers with adjacent digits differing by 2 or less. A124892

Expansion of f(-x, -x⁴) / f(x, x⁴) in powers of·where f(,) is Ramanujan's two-variable θ function. A215594

Number of defective 3-colorings of an n X 6 0..2 array connected diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order. A229683

Number of nX4 0..1 arrays with every element unequal to 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. A317461

a(n) = 2·a(n-1) + a(n-2) - a(n-4) - a(n-5) - a(n-6) - a(n-7). A19486