Properties of the Number -1444

Four Hundred Forty-Four

Basics

Value: -1445 → -1444 → -1443

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 19 ²

Divisors: 1, 2, 4, 19, 38, 76, 361, 722, 1444

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -10110100100

Octal: -2644

Duodecimal: -A04

Hexadecimal: -5a4

Square: 2085136

Square Root: 38

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

Numerator of Hermite(n, 1/11). A159280

a(n) = -(-1)ⁿ * n². A162395

Convolution square of A255528. A278710

a(1) = 1; a(n) = n² * ∑_{d∣n, d < n} (-1)^n/d a(d) / d². A361987

Expansion of a modular function for Gamma₀(14). A2509

Expansion of g.f. 1/((1 - x)²*(1 - 3·x + 3·x²)). A279231

a(n) = 2n(19-n). A182428

Expansion of f(-x, -x⁵)² / (f(x², x¹⁰) * f(x⁶, x¹⁸)) in powers of·where f(, ) is Ramanujan's general θ function. A283023

Triangle T(n,k) read by rows, giving even-numbered coefficients of the matching polynomial of the n-ladder graph. A308244

G.f. satisfies A(x) = A(x³)/(A(x²) - A(x³)), with A(0) = 0, A'(0) = 1. A382317