Properties of the Number 26388

Twenty-Six Thousand Three Hundred Eighty-Eight

Basics

Value: 26387 → 26388 → 26389

Parity: even

Prime: No

Previous Prime: 26387

Next Prime: 26393

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 733

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 733

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110011100010100

Octal: 63424

Duodecimal: 13330

Hexadecimal: 6714

Square: 696326544

Square Root: 162.4438364481706

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

G.f. satisfies: A(x) = 1 + x/A(-x·A(x)⁹)⁴. A213102

Numbers n such that Catalan(n)-1 is prime. A53427

Numbers k such that Bernoulli number B_k has denominator 1919190. A295595

Numbers k such that k⁷*2^k + 1 is a prime. A367560

Numerators of approximation to 2^1/3 by Newton's method after n iterations. A248041

Denominators of approximation to 2^1/3 by Newton's method after n iterations. A248042

a(n) is the number of integer strings s(0),...,s(n) counted by array T in A026386 that have s(n)=2; also a(n) = T(2n,n-1). A26388

a(2n-1) and a(2n) represent the smallest fraction a(2n-1)/a(2n) needing n unit fractions. A285261