Properties of the Number 13111

Thirteen Thousand One Hundred Eleven

Basics

Value: 13110 → 13111 → 13112

Parity: odd

Prime: No

Previous Prime: 13109

Next Prime: 13121

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 7 × 1873

Divisors: 1, 7, 1873, 13111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001100110111

Octal: 31467

Duodecimal: 7707

Hexadecimal: 3337

Square: 171898321

Square Root: 114.50327506233174

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 k, k + 1 and k + 2 are 3 consecutive Harshad numbers. A154701

Multiples of 7 whose sum of digits is equal to 7. A63416

Numbers with multiplicative digital root value 3. A34050

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction. A250898

Numbers having only digits 1 and 3 in their decimal representation. A32917

Triangle, read by rows, such that T(n,k) = T(n-1,k-1) + [T²](n-2,k-1) with T(n,0) = T(n,n) = 1 for n>=0, k>=0. A113983

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction. A250942

a(n) = ∑_k=1..n k*φ(k). A11755

a(n) = 9·n² + 3·n + 1. A82040

Triangle read by rows: T(n,k) is the number of embeddings on the sphere of connected simple planar graphs with n nodes and k faces, n >= 1, k=1..max(1,2·n-4). A384963