Properties of the Number 19160

Nineteen Thousand One Hundred Sixty

Basics

Value: 19159 → 19160 → 19161

Parity: even

Prime: No

Previous Prime: 19157

Next Prime: 19163

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 479

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 479, 958

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101011011000

Octal: 45330

Duodecimal: B108

Hexadecimal: 4ad8

Square: 367105600

Square Root: 138.4196517839862

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+x)*(1-x)⁵). A1752

a(n) = n*(n + 1)*(2·n² + 2·n - 1)/6. A6324

Larger of amicable pair m < n defined by t(n) = m and t(m) = n where t(n) = ψ(n) - n and ψ(n) = A001615(n) is the Dedekind ψ function. A323330

Triangle read by rows: T(n,k) is the number of sets of integer-sided rectangular pieces that can tile an n X k rectangle, 1 <= k <= n. A360629

Triangle, read by rows, that transforms rows into diagonals in the table of coefficients of successive iterations of x+x² (cf. A122888). A166900

Triangle T(n, k) = coefficients of ( t(n, x) ) where t(n, x) = (1-x)ⁿ⁺¹*p(n, x)/x, p(n, x) = x·D( p(n-1, x) ), with p(1, x) = x/(1-x)², p(2, x) = x*(1+x)/(1-x)³, and p(3, x) = x*(1+6·x+x²)/(1-x)⁴, read by rows. A166344

a(n) = the number of squares with at most n digits and first digit 1. A83379

Column 1 of triangle A166900. A166901

Structured small rhombicubeoctahedral numbers. A100149

Expansion of e.g.f. (2 - exp(x))⁴. A377399