Properties of the Number 11644

Eleven Thousand Six Hundred Forty-Four

Basics

Value: 11643 → 11644 → 11645

Parity: even

Prime: No

Previous Prime: 11633

Next Prime: 11657

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 41 × 71

Divisors: 1, 2, 4, 41, 71, 82, 142, 164, 284, 2911

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110101111100

Octal: 26574

Duodecimal: 68A4

Hexadecimal: 2d7c

Square: 135582736

Square Root: 107.90736768172968

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 (n+1)X(k+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction. A250877

Base-9 Keith numbers. A188200

Number T(n,k) of standard Young tableaux with n cells where k is the length of the maximal consecutive sequence 1,2,...,k in the first column; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A238802

a(n) = 1 + (144 + (50 + (35 + (10 + n)*n)*n)*n)*n/120. A145127

Numbers k such that k⁴ contains a pandigital substring. A115934

Number of distinct values that can be generated by an expression containing n binary operators (any of add, subtract, multiply and divide) whose operands are any integer between 1 and 9; parenthesis allowed. A181958

G.f. satisfies: A(x) = 1 + x·A(x)*A(-x) + x²*(A(x) + A(-x)). A208887

Expansion of g.f. A(x) satisfying A( x*(1 + 2·x)*A(x) )³ = A( x*(1 + 3·x)*A(x)² )². A370537

Binomial transform of A129982. A129983

Number of partitions of n having no even singletons. A265254