Properties of the Number -269

Two Hundred Sixty-Nine

Basics

Value: -270 → -269 → -268

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 269

Divisors: 1, 269

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100001101

Octal: -415

Duodecimal: -1A5

Hexadecimal: -10d

Square: 72361

Square Root: 16.401219466856727

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

Values of n such that L(20) and N(20) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227523

Expansion of 1 / (1 + x² - x³) in powers of x. A77961

Rectangular array read by antidiagonals: a(m,n) = 2·Integral_t>=0 T_n((t-m)/2)*exp(-t)*dt, m>=0, n>=0, where T_n(x) is n-th Chebyshev polynomial of first kind. A300481

Expansion of ∏_k>=1 (1 - x^k * (1 + x)). A306565

a(n) = -n² + 9·n + 53. A126665

Expansion of 1/(1 + 2·x + x² - x³). A77990

The sequence is {a(n), n>=0}, the concatenation of the binary expansions of the absolute values |a(n)| is {b(n), n>=0}; start with a(0)=0; thereafter a(n) = a(n-1)+n if b(n-1)=0, otherwise a(n) = a(n-1)-n. A309217

Expansion of 1/(1-2·x+x²+x³). A77941

a(n) = -5·a(n-1)-2·a(n-2), n>1 ; a(0)=1, a(1)=-1 . A152594

G.f. A(x) satisfies: 1/(1 - x) = A(x)*A(x²)²*A(x³)³*A(x⁴)⁴* ... *A(x^k)^k* ... A307648