Properties of the Number -1227

Two Hundred Twenty-Seven

Basics

Value: -1228 → -1227 → -1226

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 409

Divisors: 1, 3, 409, 1227

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10011001011

Octal: -2313

Duodecimal: -863

Hexadecimal: -4cb

Square: 1505529

Square Root: 35.02855977627399

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

Expansion of -3·x/(1 - 5·x + 3·x²). A106732

G.f.: ∏_m>0 (1 - x^m + 2!*x^2·m - 3!*x^3·m). A293255

a(n) = n² + 2. A59100

Discriminants of imaginary quadratic fields with class number 4 (negated). A13658

List of free polyominoes in binary coding, ordered by number of bits, then value of the binary code. Can be read as irregular table with row lengths A000105 (in which case the offset is 0). A246521

Numbers m such that the Bernoulli number B_2·m has denominator 42. A51227

a(n) = (n² - 3·n + 6)/2. A152948

a(n) = 2·n² + 3·n + 3. A33816

a(0) = 1, a(n) = n² + 2 for n > 0. A10000

Numbers where 2 outnumbers any other digit. A292452