Properties of the Number 11671

Eleven Thousand Six Hundred Seventy-One

Basics

Value: 11670 → 11671 → 11672

Parity: odd

Prime: No

Previous Prime: 11657

Next Prime: 11677

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 11 × 1061

Divisors: 1, 11, 1061, 11671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110110010111

Octal: 26627

Duodecimal: 6907

Hexadecimal: 2d97

Square: 136212241

Square Root: 108.03240254664338

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+2)X(k+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..2 introduced in row major order. A204370

Sum of the fourth largest parts of the partitions of n into 8 squarefree parts. A326449

The successive approximations up to 2ⁿ for 2-adic integer 7^1/3. A322934

Numbers n > 1 such that log₁₀(n!) is closer to an integer than at any smaller n. A177901

Nonprime numbers with all divisors starting and ending with digit 1. A208261

Expansion of ∏_k>=1 (1 + x^k) / (1 - x^3·k). A285445

Values of w(k) when w(k-2), w(k-1), and w(k) are all odd, where w is A336957. A338071

[ n(n+1)(n+2)...(n+5) / (n+(n+1)+(n+2)+...+(n+5)) ]. A32771

Consider a number of k digits n = d_k*10^k-1 + d_k-1*10^k-2 + … + d₂*10 + d₁. Sequence lists the numbers n such that ∑_i=1..k-1{σ(∑_j=1..i{d_j*10^j-1})} = ∑_i=1..k-1{φ(∑_j=1..i{d_k-j+1*10^i-j})} (see example below). A244068

Composite numbers k with its divisors having the property that the last digit of every divisor is the same as the first digit of the next divisor. A307858