Properties of the Number -3868

Eight Hundred Sixty-Eight

Basics

Value: -3869 → -3868 → -3867

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 967

Divisors: 1, 2, 4, 967, 1934, 3868

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111100011100

Octal: -7434

Duodecimal: -22A4

Hexadecimal: -f1c

Square: 14961424

Square Root: 62.19324722186485

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

Number of primes < prime(n)². A879

A B₂ sequence: a(n) = least value such that sequence increases and pairwise sums of distinct elements are all distinct. A11185

G.f. satisfies A(x) = ∏_k>0 (1+x^k*A(x)). A145267

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction. A250797

a(n) is the smallest b > 1 such that p = prime(n) satisfies b^p-1 == 1 (mod p³). A249275

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly two ways, and new values 0..2 introduced in row major order. A205415

a(n) = r·a(ceiling(n/2))+s·a(floor(n/2)) with a(1)=1 and (r,s)=(3,1). A268524

Expansion of (1-x)/(1+x+2·x²). A78050

Number of different values of i² + j² + k² for i,j,k in [ 0,n ] (or [ -n,n ]). A34966

Intrinsic 8-palindromes: n is an intrinsic k-palindrome if it is a k-digit palindrome in some base. A60878