Properties of the Number 89188

Eighty-Nine Thousand One Hundred Eighty-Eight

Basics

Value: 89187 → 89188 → 89189

Parity: even

Prime: No

Previous Prime: 89153

Next Prime: 89189

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 11 × 2027

Divisors: 1, 2, 4, 11, 22, 44, 2027, 4054, 8108, 22297

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101110001100100

Octal: 256144

Duodecimal: 43744

Hexadecimal: 15c64

Square: 7954499344

Square Root: 298.6436002997553

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 40·R_k + 9 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A56683

a(0)=1; a(n) = sigma₂(n) + sigma₃(n). A92344

Number of (n+2) X 4 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..1 introduced in row major order. A204375

Lesser member p of a pair of twin primes such that p-1 is squarefree. A89188

Number of nX4 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors. A183469

Indices n for which the partial sums of sin(k) (0 <= k <= n) reach a new minimum. A322288