Properties of the Number -26839

Twenty-Six Thousand Eight Hundred Thirty-Nine

Basics

Value: -26840 → -26839 → -26838

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 26839

Divisors: 1, 26839

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110100011010111

Octal: -64327

Duodecimal: -13647

Hexadecimal: -68d7

Square: 720331921

Square Root: 163.82612734237478

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) = 8·a(n-1) - a(n-2), a(0)=1, a(-1)=1. A70997

Odd primes p such that the number of primes less than p that are congruent to 1 (mod 4) is equal to the number of primes less than p that are congruent to 3 (mod 4). A96447

Prime number spiral (clockwise, South spoke). A54566

a(n)*a(n+3) - a(n+1)*a(n+2) = 3, given a(0)=a(1)=1, a(2)=4. A80871

Denominators of continued fraction convergents to sqrt(15). A41023

Fixed points for prime number permutation A108546. A108547

Number of odd strict trees of weight n (all outdegrees are odd). A300440

Primes for which the weight as defined in A117078 is 11 and the gap as defined in A001223 is 10. A119596

Primes p such that both (p² + 5)/6 and (p⁴ + 5)/6 are prime. A253925

Primes p such that p and p² have same digit sum. A58370