Properties of the Number -39915

Thirty-Nine Thousand Nine Hundred Fifteen

Basics

Value: -39916 → -39915 → -39914

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 887

Divisors: 1, 3, 5, 9, 15, 45, 887, 2661, 4435, 7983

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001101111101011

Octal: -115753

Duodecimal: -1B123

Hexadecimal: -9beb

Square: 1593207225

Square Root: 199.78738698926918

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) = ∑_{1 <= x₁, x₂, x₃ <= n} gcd(x₁, x₂, x₃, n)³. A372928

Numbers k such that σ(k - 2) = σ(k + 2). A223091

a(n) = A001209(n) + 1. A196069

Numbers k such that abs(prime(k)-k*τ(k)) < sqrt(k). A68543

Number of monotonic lattice paths of length n which do not pass above the line y = x/(log₂(3)-1). A355850