Properties of the Number -26987

Twenty-Six Thousand Nine Hundred Eighty-Seven

Basics

Value: -26988 → -26987 → -26986

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 26987

Divisors: 1, 26987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100101101011

Octal: -64553

Duodecimal: -1374B

Hexadecimal: -696b

Square: 728298169

Square Root: 164.2772047485591

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

Primes p such that the number of primes less than p equal to 1 mod 4 is two less than the number of primes less than p equal to 3 mod 4. A96451

Primes with digit sum = 32. A106768

Numerator of h(n+5) - h(n) where h(n) = ∑_k=1..n (1/k) are the Harmonic numbers. A189998

Primes of the form k³ - 13. A178044

Discriminants of imaginary quadratic fields with class number 41 (negated). A351679

Primes p such that q·p +- (p mod q) are primes, for q=8. A178416

Primes p such that 6p - 1 and 6p + 1 are twin primes and ((6p-1)² + (6p+1)²) / 10 is prime. A283957

Apply partial sum operator twice to binary rooted tree numbers. A14168

Multiplicity of highest weight (or singular) vectors associated with character chi₆₃ of Monster module. A34451

Number of partitions satisfying (cn(0,5) <= cn(2,5) = cn(3,5)). A36804