Properties of the Number 13246

Thirteen Thousand Two Hundred Forty-Six

Basics

Value: 13245 → 13246 → 13247

Parity: even

Prime: No

Previous Prime: 13241

Next Prime: 13249

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 37 × 179

Divisors: 1, 2, 37, 74, 179, 358, 6623, 13246

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001110111110

Octal: 31676

Duodecimal: 77BA

Hexadecimal: 33be

Square: 175456516

Square Root: 115.09126813099246

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

Numbers k such that k²⁵⁶ + 1 is prime. A56995

Numbers k such that numerator(Bernoulli(2·k)/(2·k)) is different from numerator(Bernoulli(2·k)/(2·k*(2·k-1))). A90495

T(n,k)=Number of nXk 0..3 arrays with every element equal to either the sum mod 4 of its vertical neighbors or the sum mod 4 of its horizontal neighbors. A183492

Fibonacci-Collatz sequence: a(1)=1, a(2)=2; for n > 2, let fib = a(n-1) + a(n-2); if fib is odd then a(n) = 3·fib + 1 else a(n) = fib/2. A105801

a(n) is the number of quadratic polynomials with coefficients in {-n, ..., n}, positive leading coefficient, and having two rational roots. A391527

Numbers n with property that n² is a sum of some 70 successive primes. A166256

Number of n X 3 arrays with each row a permutation of 1..3 having at least as many downsteps as the preceding row, with rows in lexicographically nonincreasing order. A222001

Column 3 of triangle A091602. A91606

a(n) = numerator of constant λ(n) involved in a recurrence for the Atkin polynomials A_k(j). A145226

Number of n X 3 0..3 arrays with every element equal to either the sum mod 4 of its vertical neighbors or the sum mod 4 of its horizontal neighbors. A183486