Properties of the Number 26531

Twenty-Six Thousand Five Hundred Thirty-One

Basics

Value: 26530 → 26531 → 26532

Parity: odd

Prime: No

Previous Prime: 26513

Next Prime: 26539

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 43 × 617

Divisors: 1, 43, 617, 26531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011110100011

Octal: 63643

Duodecimal: 1342B

Hexadecimal: 67a3

Square: 703893961

Square Root: 162.88339387426822

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) = (n³ + 2·n)/3. A6527

a(n) = 6·a(n-2) - a(n-4). A6452

a(n) = (2·n+1)*(4·n²+4·n+3)/3. A57813

a(n) = 6·a(n-1) - a(n-2), n >= 2, a(0)=1, a(1)=4. A38723

One third of product plus sum of three consecutive nonnegative integers; a(n)=(n+1)(n²+2n+3)/3. A167875

One of the two successive approximations up to 7ⁿ for the 7-adic integer sqrt(-6). These are the numbers congruent to 1 mod 7 (except for the initial 0). A290800

Sequences A006452 and A216134 interlaced. A216162

Dispersion of the Beatty sequence ([r·n]: n >= 1), where r = 3 + 8^1/2: square array D(n,m) (n, m >= 1), read by ascending antidiagonals. A120858

a(n) = prime(n)² - n. A182174

G.f. A(x) satisfies A( x*(1+x)/A(x)² ) = 1 + x. A383563