Properties of the Number -398848

Three Hundred Ninety-Eight Thousand Eight Hundred Forty-Eight

Basics

Value: -398849 → -398848 → -398847

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 40

Digital Root: 4

Palindrome: No

Factorization: 2 ⁹ × 19 × 41

Divisors: 1, 2, 4, 8, 16, 19, 32, 38, 41, 64

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -1100001011000000000

Octal: -1413000

Duodecimal: -172994

Hexadecimal: -61600

Square: 159079727104

Square Root: 631.5441393916976

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

E.g.f. C(x,y) = 1 - Integral S(x,y)*C(y,x) dx such that C(x,y)² + S(x,y)² = 1 and S(y,x) = Integral C(y,x)*C(x,y) dy, as a triangle of coefficients T(n,k) read by rows. A367381

E.g.f. C(x,y) = 1 + Integral S(x,y)*C(y,x) dx such that C(x,y)² - S(x,y)² = 1 and C(y,x) = Integral S(y,x)*C(x,y) dy, where C(x,y) = ∑_n>=0 ∑_k=0..n T(n,k) * x^2·n-2·k*y^2·k/((2·n-2·k)!*(2·k)!), as a triangle of coefficients T(n,k) read by rows. A322221

E.g.f. C(y,x) = 1 + Integral S(y,x)*C(x,y) dy such that C(y,x)² - S(y,x)² = 1 and C(x,y) = Integral S(x,y)*C(y,x) dx, where C(y,x) = ∑_n>=0 ∑_k=0..n T(n,k) * x^2·n-2·k*y^2·k/((2·n-2·k)!*(2·k)!), as a triangle of coefficients T(n,k) read by rows. A322222

Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 105", based on the 5-celled von Neumann neighborhood. A285828

log(arcsinh(x)+cos(x)) = x-2/2!*x²+4/3!*x³-16/4!*x⁴+88/5!*x⁵... A13115

arctanh(sec(x)*arcsinh(x))=x+4/3!*x³+88/5!*x⁵+4184/7!*x⁷... A12830

E.g.f. G(x,y) = Integral C(x,y)*S(y,x) dx such that C(x,y)² + S(x,y)² = 1 and S(y,x) = Integral C(x,y)*C(y,x) dy, as a triangle of coefficients T(n,k) read by rows. A367382