Properties of the Number -438540

Four Hundred Thirty-Eight Thousand Five Hundred Forty

Basics

Value: -438541 → -438540 → -438539

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 5 × 7309

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -1101011000100001100

Octal: -1530414

Duodecimal: -191950

Hexadecimal: -6b10c

Square: 192317331600

Square Root: 662.2235272172078

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

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every element equal to some horizontal, vertical, diagonal or antidiagonal neighbor, with top left element zero. A231957

a(n) = (2/3)*n*(n³ - 6·n² + 11·n - 3). A319575

θ series of D₃₀ lattice. A22061

E.g.f. satisfies A(x) = exp( 3 * (exp(x) - 1) * A(x)^1/3 ). A375877

θ series of D*_30 lattice. A22083

Number of (n+1) X (2+1) 0..1 arrays with every element equal to some horizontal, vertical, diagonal or antidiagonal neighbor, with top left element zero. A231951

Number of (n+1) X (6+1) 0..1 arrays with every element equal to some horizontal, vertical, diagonal or antidiagonal neighbor, with top left element zero. A231955