Properties of the Number -311728

Three Hundred Eleven Thousand Seven Hundred Twenty-Eight

Basics

Value: -311729 → -311728 → -311727

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 19483

Divisors: 1, 2, 4, 8, 16, 19483, 38966, 77932, 155864, 311728

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -1001100000110110000

Octal: -1140660

Duodecimal: -130494

Hexadecimal: -4c1b0

Square: 97174345984

Square Root: 558.326069604492

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

Diagonal sums of Riordan array ((1-2x)/(1 - 3x + x²),x(1-x)/(1 - 3x + x²)). A147704

Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p₁, p₂, p₃, p₄} = {-1,0,1,2}, n=3·r+p_i, and define a(-1)=0. Then a(n)=a(3·r+p_i) gives the quantity of H_9,3,0 tiles in a subdivided H_9,i,r tile after linear scaling by the factor Q^r, where Q=sqrt(x³-2·x) with x=2·cos(π/9). A187505