Properties of the Number -26605

Twenty-Six Thousand Six Hundred Five

Basics

Value: -26606 → -26605 → -26604

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 17 × 313

Divisors: 1, 5, 17, 85, 313, 1565, 5321, 26605

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011111101101

Octal: -63755

Duodecimal: -13491

Hexadecimal: -67ed

Square: 707826025

Square Root: 163.11039206623224

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

Numbers of the form p·q*r where p, q, r are distinct primes congruent to 1 mod 4 such that Legendre(p/q) = Legendre(p/r) = Legendre(q/r) = -1. A323271

a(n) = 13·2ⁿ⁺¹ - 19. A275163

Numbers n such that 2·29ⁿ + 1 is prime. A141802

a(n) = ∑_k=0..3 f(n+k)² where f=A130519. A238604

Squared length of diagonal of right trapezoid with three consecutive prime length sides. A360790

Least term in period of continued fraction for sqrt(n) is 9. A31433

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 17. A31605