Properties of the Number -16931

Sixteen Thousand Nine Hundred Thirty-One

Basics

Value: -16932 → -16931 → -16930

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 16931

Divisors: 1, 16931

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100001000100011

Octal: -41043

Duodecimal: -996B

Hexadecimal: -4223

Square: 286658761

Square Root: 130.1191761424887

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

Smallest prime p==3 (mod 8) such that Q(sqrt(-p)) has class number 2n+1. A2148

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s. A297694

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

A three-dimensional version of the cellular automaton A160118, using cubes. A160119

If a,b are prime numbers satisfying the Diophantine equation a³+b³=c², then a is -1 mod 12 and b is 1 mod 12, or vice versa. Choose 'a' to be -1 mod 12. This is the sequence of 'a' values, sorted by the magnitude of c. A99806

(2,3,5,7)-primes (see comments for precise definition). A262728

Numerators of continued fraction convergents to sqrt(350). A41662

Values of p in A145767. A145797

Primes of the form 2·k² + 3. A201473

Primes that remain prime through 3 iterations of function f(x) = 2x + 9. A23276