Properties of the Number -143

One Hundred Forty-Three

Basics

Value: -144 → -143 → -142

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 11 × 13

Divisors: 1, 11, 13, 143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001111

Octal: -217

Duodecimal: -BB

Hexadecimal: -8f

Square: 20449

Square Root: 11.958260743101398

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

T(n,m), numerators of coefficients in a power/Fourier series expansion of the plane pendulum's exact phase space trajectory. A273506

Numerators of terms in series expansion of sin(tan(x)). A96664

Expansion of k(q) = r(q) * r(q²)² in powers of q where r() is the Rogers-Ramanujan continued fraction. A112274

Second differences of σ(n). A53223

4th differences of partition numbers A000041. A81094

Coefficient triangle for computation of column numbers of triangle A071951 (Legendre-Stirling). A89278

Numerators in expansion of (1-x)^5/2. A161202

G.f.: A(x) = (x-x²) o x/(1-x) o (1-sqrt(1-4·x))/2, a composition of functions involving the Catalan function and its inverse. A120009

a(n) = -a(n-1) + 3·a(n-2), starting a(1)=1, a(2)=2. A140165

Faulhaber's triangle: triangle T(k,y) read by rows, giving numerator of the coefficient [m^y] of the polynomial ∑_x=1..m x^k-1. A162298