Properties of the Number 11242

Eleven Thousand Two Hundred Forty-Two

Basics

Value: 11241 → 11242 → 11243

Parity: even

Prime: No

Previous Prime: 11239

Next Prime: 11243

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 11 × 73

Divisors: 1, 2, 7, 11, 14, 22, 73, 77, 146, 154

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101111101010

Octal: 25752

Duodecimal: 660A

Hexadecimal: 2bea

Square: 126382564

Square Root: 106.02829810951414

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

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 1 and 1 1 0 vertically. A208840

Number of achiral polyomino rings of length 4n with fourfold rotational symmetry. A324409

Numbers k such that φ(k)*k is a triangular number. A115910

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock equal. A237175

a(n) = 2·n * Stirling2(n-1,2). A52749

Coordination sequence for root lattice B₁₁. A22153

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 443", based on the 5-celled von Neumann neighborhood. A282260

Expansion of ∑_k>=0 binomial(2·k,k)*x^k/∏_j=1..k (1 - j·x). A305406

A classification of permutations based on their cycle length and the size of the centralizer of their cycle type. Triangle read by rows, T(n, k) for 0 <= k <= n. A339016

Number of base 32 circular n-digit numbers with adjacent digits differing by 2 or less. A124998