Properties of the Number 26208

Twenty-Six Thousand Two Hundred Eight

Basics

Value: 26207 → 26208 → 26209

Parity: even

Prime: No

Previous Prime: 26203

Next Prime: 26209

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁵ × 3 ² × 7 × 13

Divisors: 1, 2, 3, 4, 6, 7, 8, 9, 12, 13

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011001100000

Octal: 63140

Duodecimal: 13200

Hexadecimal: 6660

Square: 686859264

Square Root: 161.88885075878449

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 invertible 2 X 2 matrices mod n. A252

Numbers m with half-integral abundancy index, σ(m)/m = k+1/2 with integer k. A159907

If X₁, ..., X_n is a partition of a 2n-set X into 2-blocks then a(n) is equal to the number of 3-subsets of X containing none of X_i, (i=1,...,n). A130809

Number of the Lipschitz quaternions in a reduced system modulo n. A227499

Numbers k such that the set of prime divisors of k is equal to the set of prime divisors of σ(k). A27598

a(n) = ∑_{d∣n, n/d=1 mod 4} d³ - ∑_{d∣n, n/d=3 mod 4} d³. A50471

Numbers k such that σ(k) = 7k/2. A55153

a(n) is the concatenation of n and 8n. A9470

Orders of the finite groups GL₂(K) when K is a finite field with q = A246655(n) elements. A59238

Coefficients in expansion of Eisenstein series -q·E'_2. A76835