Properties of the Number -3686

Six Hundred Eighty-Six

Basics

Value: -3687 → -3686 → -3685

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 19 × 97

Divisors: 1, 2, 19, 38, 97, 194, 1843, 3686

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111001100110

Octal: -7146

Duodecimal: -2172

Hexadecimal: -e66

Square: 13586596

Square Root: 60.71243694664216

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) = 2·a(n-1) - 3·a(n-2) + 2·a(n-3) with a(0) = 3, a(1) = 4, a(2) = 0. A105576

Coordination sequence for "hal" 3D uniform tiling. A299274

Positive integers n such that n¹⁰ + 1 is semiprime. A105078

T(n,k) is the number of (n+1) X (k+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings). A234490

T(n,k)=Number of nXk 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order. A240519

Sum of the sixth largest parts in the partitions of n into 7 squarefree parts. A308955

Expansion of ((1 + 4·x)/(1 - 4·x))^1/4. A303537

T(n,k) = number of n X k binary matrices with rows and columns each in strictly increasing order as binary numbers and each row and column having an even number of 1's. A181004

Product of n-th prime number and n-th composite number. A67563

Number of partitions of n having standard deviation σ <= 2. A238659