Properties of the Number 26157

Twenty-Six Thousand One Hundred Fifty-Seven

Basics

Value: 26156 → 26157 → 26158

Parity: odd

Prime: No

Previous Prime: 26153

Next Prime: 26161

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 8719

Divisors: 1, 3, 8719, 26157

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011000101101

Octal: 63055

Duodecimal: 13179

Hexadecimal: 662d

Square: 684188649

Square Root: 161.73125857421627

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

a(n) = ∑_k<=n A000203(k)*(n-k+1), where A000203(m) is the sum of divisors of m. A175254

T(n,k)=Number of nXk 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A279494

Numbers k such that prime(k) divides primorial(j) + 1 for exactly three integers j. A283928

Number of nX4 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A279490

Number of nX5 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A279491

a(n) = T(2n,n), where T is the array in A026148. A26157