Properties of the Number 40385

Forty Thousand Three Hundred Eighty-Five

Basics

Value: 40384 → 40385 → 40386

Parity: odd

Prime: No

Previous Prime: 40361

Next Prime: 40387

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 41 × 197

Divisors: 1, 5, 41, 197, 205, 985, 8077, 40385

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001110111000001

Octal: 116701

Duodecimal: 1B455

Hexadecimal: 9dc1

Square: 1630948225

Square Root: 200.9601950635996

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

Positive numbers y such that y² is of the form x²+(x+41)² with integer x. A157257

a(n) = n! + n² + 1. A227546

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 353", based on the 5-celled von Neumann neighborhood. A271307

Number of Catalan words of length n avoiding the pattern 110. A307465

Continued fraction for sqrt(406). A40385