Properties of the Number -238404

Two Hundred Thirty-Eight Thousand Four Hundred Four

Basics

Value: -238405 → -238404 → -238403

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 19867

Divisors: 1, 2, 3, 4, 6, 12, 19867, 39734, 59601, 79468

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010001101000100

Octal: -721504

Duodecimal: -B5B70

Hexadecimal: -3a344

Square: 56836467216

Square Root: 488.26632077176896

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

a(1) = 1, a(2) = 2; a(n) = a(n-a(1)) + a(n-a(2)) + a(n-a(3)) + a(n-a(4)) + ... A141435

Square array A(n,k), n >= 1, k >= 1, read by antidiagonals downwards, where A(n,k) = n! * k! * [xⁿ * y^k] (1/2) * (1 / (1 - log(1-x) * log(1-y))² - 1). A382801

G.f. = ((2+3·x)/(1-x²-x³))². A350602