Properties of the Number 6526

Six Thousand Five Hundred Twenty-Six

Basics

Value: 6525 → 6526 → 6527

Parity: even

Prime: No

Previous Prime: 6521

Next Prime: 6529

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 13 × 251

Divisors: 1, 2, 13, 26, 251, 502, 3263, 6526

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101111110

Octal: 14576

Duodecimal: 393A

Hexadecimal: 197e

Square: 42588676

Square Root: 80.78366171448283

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

Generalized 22-gonal (or icosidigonal) numbers: m*(10·m - 9) with m = 0, +1, -1, +2, -2, +3, -3, ... A303299

a(n) = n*(n²+3·n-1)/3. A84990

a(n) = ∑_j=1..n j·prime(j). A14285

Numbers k such that k | 10^k + 10. A15902

22-gonal numbers: a(n) = n*(10·n-9). A51874

Numbers n such that there are equal numbers of 0's and 1's in first n digits of binary representation of π. A39624

Numbers k such that binomial(3k, k) + 1 is prime. A125221

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101. A260980

Length of one version of Kolakoski sequence {A000002(i)} at n-th growth stage. A1083

Numbers k such that k¹⁸ == 1 (mod 19³). A56089