Properties of the Number 26185

Twenty-Six Thousand One Hundred Eighty-Five

Basics

Value: 26184 → 26185 → 26186

Parity: odd

Prime: No

Previous Prime: 26183

Next Prime: 26189

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 5237

Divisors: 1, 5, 5237, 26185

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011001001001

Octal: 63111

Duodecimal: 131A1

Hexadecimal: 6649

Square: 685654225

Square Root: 161.8177987738061

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

Number of primes less than 10ⁿ which have at least one digit 0. A91644

a(n) = 3·a(n-1) + 5·a(n-2), with a(0)=1, a(1)=5. A152187

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..1 introduced in row major order. A205264

Expansion of ∏_k>=1 (1 + x^k)^{5^(k-1}). A343362

a(n) = -3·a(n-1) + 5·a(n-2), n > 1; a(0)=1, a(1)=-5. A152185

Decimal part of n^1/11 starts with a 'nine digits' anagram. A34286

((1/2)/p²)*(T(p)-1) where p runs through the prime >= 5 and T(k) is the k-th central trinomial number (A002426). A87178

Number of (n+2)X4 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..1 introduced in row major order. A205258

Number of length 3+2 0..n arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero. A253131

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 637", based on the 5-celled von Neumann neighborhood. A273306