Properties of the Number -439128

Four Hundred Thirty-Nine Thousand One Hundred Twenty-Eight

Basics

Value: -439129 → -439128 → -439127

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ³ × 19 × 107

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101011001101011000

Octal: -1531530

Duodecimal: -192160

Hexadecimal: -6b358

Square: 192833400384

Square Root: 662.6673373571388

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) = Lucas(n+4) - (3·n+7). A23537

Inflation orbit counts. A31367

a(n) = Fibonacci(9·n)/34. A49669

Integers that appear as ratios of Fibonacci numbers F(kn)/F(k), but omitting Fibonacci numbers F(n)/F(1) and Lucas numbers F(2n)/F(n). A31122

a(n) = gcd(A330050(n), A330051(n)). A329421

a(n) = L(n)*L(2n), where L(n) are the Lucas numbers (A000204). A83564

a(n) = Lucas(2·n+3) - (6·n+4). A27000

Define f(x) = abs(1-1/x) and sequence {b(m)} such that b(m+1) = f(b(m)). a(n) is the number of initial values b(1) such that {b(m)}'s period has length n. A378853

Denominators of a continued fraction for (1 + sqrt(5))/2. A6270

a(n) = (n+1)²*(n+2)*(5·n² + 15·n + 12)/24. A108676