Properties of the Number -1128

One Hundred Twenty-Eight

Basics

Value: -1129 → -1128 → -1127

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 47

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 47, 94

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001101000

Octal: -2150

Duodecimal: -7A0

Hexadecimal: -468

Square: 1272384

Square Root: 33.58571124749333

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

Alternating sum of squares to n. A89594

a(n) = A353750(n) - A353749(n). A353757

G.f.: q-Cosh(x,q)² - q-Sinh(x,q)² at q=-x. A198199

McKay-Thompson series of class 6c for Monster. A7262

Sequence is {a(3,n)}, where a(m,n) is defined at sequence A110665. A110668

Expansion of (f(x) / f(x³))⁶ in powers of·where f() is a Ramanujan θ function. A132107

Expansion of ∏_m>=1 (1 - m·q^m)⁴. A22664

a(n) = μ(n) * A000217(n). A125287

Expansion of g.f. (2·x³ + 5) / ( -x⁵ + x³ + 1). A136598

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 390", based on the 5-celled von Neumann neighborhood. A271601