Properties of the Number 19166

Nineteen Thousand One Hundred Sixty-Six

Basics

Value: 19165 → 19166 → 19167

Parity: even

Prime: No

Previous Prime: 19163

Next Prime: 19181

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 × 37 ²

Divisors: 1, 2, 7, 14, 37, 74, 259, 518, 1369, 2738

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100101011011110

Octal: 45336

Duodecimal: B112

Hexadecimal: 4ade

Square: 367335556

Square Root: 138.44132331063582

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

a(n) = 14·n². A144555

Square array A(n,k), n>=0, k>=0, read by antidiagonals: A(n,k) is the number of partitions of n^k into powers of k. A196879

Sorted positions of first appearances in A057820, the sequence of first differences of prime-powers. A376340

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nXk array. A219627

Triangle T(n,k) of number of digraphs with a quasi-source on n unlabeled nodes and with k arcs, k = 0..n*(n-1). A57279

s(k)-s(j), where (s(k),s(j)) is the least pair of numbers given by s(j)=3^j-2^j which n divides their difference. A205110

Expansion of (1/x) * Series_Reversion( x * (1-x) / (1+x³)² ). A369266

Even numbers n such that 37² (the square of the first irregular prime) divides the numerator of Bernoulli(n). A90789

Least positive k such that k * [RSA-200]ⁿ - 1 is prime, where RSA-200 is the 200 decimal digit RSA challenge number A391940(15). A108375

Number of partitions of n⁷ into powers of 7. A196885