Properties of the Number -2240

Two Hundred Forty

Basics

Value: -2241 → -2240 → -2239

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ⁶ × 5 × 7

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -100011000000

Octal: -4300

Duodecimal: -1368

Hexadecimal: -8c0

Square: 5017600

Square Root: 47.32863826479693

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

Coefficients of a partition transform for Lagrange inversion of -log(1 - u(.)*t), complementary to A134685 for an e.g.f. A133932

Array read by upwards antidiagonals: T(n,k) = ∏_{0 < |n-k·i| <= n} (n-k·i), with n >= 0, k >= 1. A288580

Row 3 of array in A288580. A92397

Generalized Stirling2 array (-1,2)S2. Irregular triangle a(n, m) for n >= 1 and 2 <= m <= 2·n. A91752

Expansion of (∏_j>=1 (1-(-x)^j) - 1)⁸ in powers of x. A1486

Coefficients in the expansion of 1/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = 9/5. A279781

Glaisher's function W(n). A2470

Expansion of e.g.f. exp(sin(x)-sinh(x)). A13369

Expansion of g.f. (1-x+x²)/(1+x-x³). A104771

Expansion of χ(-q)⁵ / χ(-q⁵) in powers of q where χ() is a Ramanujan θ function. A138521