Properties of the Number 40681

Forty Thousand Six Hundred Eighty-One

Basics

Value: 40680 → 40681 → 40682

Parity: odd

Prime: No

Previous Prime: 40639

Next Prime: 40693

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 17 × 2393

Divisors: 1, 17, 2393, 40681

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001111011101001

Octal: 117351

Duodecimal: 1B661

Hexadecimal: 9ee9

Square: 1654943761

Square Root: 201.6953147695801

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

Number of series-reduced anti-binary (no unary or binary branchings) unlabeled rooted trees with n nodes. A303025

Diagonal sum of number triangle A119828. A119829

Number of nondecreasing arrangements of n numbers x(i) in -(n+2)..(n+2) with the sum of sign(x(i))*x(i)² zero. A187997

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 41", based on the 5-celled von Neumann neighborhood. A269874

Expansion of (1-x)^-1/(1+2·x+2·x²-x³). A77933

T(n,k)=Number of nondecreasing arrangements of n numbers x(i) in -(n+k-2)..(n+k-2) with the sum of sign(x(i))*x(i)² zero. A188002

Continued fraction for sqrt(708). A40681