Properties of the Number 12606

Twelve Thousand Six Hundred Six

Basics

Value: 12605 → 12606 → 12607

Parity: even

Prime: No

Previous Prime: 12601

Next Prime: 12611

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 11 × 191

Divisors: 1, 2, 3, 6, 11, 22, 33, 66, 191, 382

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000100111110

Octal: 30476

Duodecimal: 7366

Hexadecimal: 313e

Square: 158911236

Square Root: 112.27644454648535

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

Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 3·x, p(n,x) = u·p(n-1,x) + v·p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - x². A368150

Imaginary part of absolute Gaussian perfect numbers, in order of increasing magnitude. A102532

Numbers with exactly 4 distinct palindromic prime factors. A46402

Triangle, rows = inverse binomial transforms of A073133 columns. A117936

Triangle read by rows: T(n, k) = ∑_j=0..n C(j, n-k) * C(j, k) * (-1)^{n - j}. A176331

The number of partitions of n into at least 3 parts from which we can form every partition of n into 3 parts by summing elements. A236970

Positive numbers k such that -k, -(k + 1), and -(k + 2) are 3 consecutive negative negaFibonacci-Niven numbers (A331088). A331090

a(n) is the number of vertices formed by n-secting the angles of a hexagon. A335734

Number T(n,k) of endofunctions on [n] with exactly k fixed points, none of which are isolated; triangle T(n,k), n >= 0, 0 <= k <= n/2, read by rows. A350454

Number of integer points (x,y,z) at distance <= 0.5 from sphere of radius n. A16728