Properties of the Number 11844

Eleven Thousand Eight Hundred Forty-Four

Basics

Value: 11843 → 11844 → 11845

Parity: even

Prime: No

Previous Prime: 11839

Next Prime: 11863

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 7 × 47

Divisors: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10111001000100

Octal: 27104

Duodecimal: 6A30

Hexadecimal: 2e44

Square: 140280336

Square Root: 108.83014288330233

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

Multiples of 18 containing a 18 in their decimal representation. A121038

Square of lower triangular matrix of A056857 (successive equalities in set partitions of n). A78937

Vampire numbers: (definition 1): n has a nontrivial factorization using n's digits. A20342

Numbers k such that φ(x) = k has exactly 11 solutions. A60674

a(n+1) -+ a(n) = prime, a(n+1)*a(n) = average of twin prime pairs, a(1)=1, a(2)=6. A154494

Triangle read by rows: T(n,k) is the number of paths in the right half-plane from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k H=(2,0) steps (0 <= k <= floor(n/2)). A132885

Inverse binomial transform of squares of factorial numbers. A89041

Number of compositions of n with exactly 1 adjacent equal pair of parts. A106357

A117852·A130595 as lower triangular matrices. A171128

G.f.: 1 = ∑_n>=0 a(n)*xⁿ * ∑_k=0..n+1 C(n+1,k)²*(-x)^k. A180716