Properties of the Number 19162

Nineteen Thousand One Hundred Sixty-Two

Basics

Value: 19161 → 19162 → 19163

Parity: even

Prime: No

Previous Prime: 19157

Next Prime: 19163

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 11 × 13 × 67

Divisors: 1, 2, 11, 13, 22, 26, 67, 134, 143, 286

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101011011010

Octal: 45332

Duodecimal: B10A

Hexadecimal: 4ada

Square: 367182244

Square Root: 138.42687600318084

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 ∏_k>=1 1/(1 - A000009(k)*x^k). A270995

a(n) = 75·2ⁿ - 38. A304612

Expansion of ∏_k>=1 (1 - q(k)*x^k), where q(k) = number of partitions of k into distinct parts (A000009). A304786

Triangle formed by left half of A101842, read by rows. A101845

The number of regions in the G-Shi arrangement when G is the cycle graph C_n. A355645

a(n) = A051193(A072109(n))/A018804(A072109(n)). A71645

Number of (n+1) X 6 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively. A204648

a(n) = (d(n)-r(n))/2, where d = A026043 and r is the periodic sequence with fundamental period (1,1,0,0). A26044

a(n) = permanent of an n X n matrix M of zeros and ones defined as follows: if we concatenate the rows of M to form a vector v of length n², v_i = 0 if i is prime and v_i = 1, otherwise. A110950

A000145(n) / 8 - (n⁵ + 1). A188671