Properties of the Number -339

Three Hundred Thirty-Nine

Basics

Value: -340 → -339 → -338

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 113

Divisors: 1, 3, 113, 339

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101010011

Octal: -523

Duodecimal: -243

Hexadecimal: -153

Square: 114921

Square Root: 18.411952639521967

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) = ∑_d∣n (-1)^d-1*d². A321543

a(n) = nearest integer to n² * sin(sqrt(n)). A274088

Take alternate terms of A274088 and A274090. A274091

a(n) = nearest integer to k²*sin(sqrt(k)+j*π/2) where n = 3·k+j, 0<=j<3. A274092

E.g.f. A(x) satisfies A(x) = exp( 1/(1 - x/A(x)²) - 1 ). A361096

Expansion of 1/(1 + ∑_i>=1 q^i²/∏_j=1..i (1 + q^j)²). A294407

a(n) = A325977(A228058(n)). A389217

Expansion of -(3 - x + 2·x²) / (1 - x³ + x⁴). A110063

Terms b(k) (for k > 0, and in order of appearance) such that both |b(k) - b(k-1)| and |b(k+1) - b(k)| are greater than 1, where b is A377091. A380224

Expansion of e.g.f. 1/(1 - sin(3·x) / 3). A381286