Properties of the Number -8387

Three Hundred Eighty-Seven

Basics

Value: -8388 → -8387 → -8386

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 8387

Divisors: 1, 8387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000011000011

Octal: -20303

Duodecimal: -4A2B

Hexadecimal: -20c3

Square: 70341769

Square Root: 91.58056562393574

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

Prime(n)*...*a(n) is the least product of consecutive primes which is abundant. A7708

Where the prime race among 10k+1, ..., 10k+9 changes leader. A297408

Primes having only {3, 7, 8} as digits. A260381

a(n) = n² + 2·n + 2ⁿ. A220425

Discriminants of imaginary quadratic fields with class number 21 (negated). A46018

Primes of the form k(k+1)/2+2 (i.e., two more than a triangular number). A55472

a(1) = 2; a(n) is the smallest prime > a(n-1) such that a(n) + a(n-1) is a square. A62064

Primes p = prime(k) such that both p+2 and prime(k+5)-2 are prime numbers. A105412

Primes for which the period of the reciprocal equals (p-1)/14. A135073

Positive integers of the form (6·m² + 1)/11. A179337