Properties of the Number 16941

Sixteen Thousand Nine Hundred Forty-One

Basics

Value: 16940 → 16941 → 16942

Parity: odd

Prime: No

Previous Prime: 16937

Next Prime: 16943

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5647

Divisors: 1, 3, 5647, 16941

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100001000101101

Octal: 41055

Duodecimal: 9979

Hexadecimal: 422d

Square: 286997481

Square Root: 130.15759678174763

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(n) = a(n-1) + a(n - 1 - number of even terms so far). A6336

Concatenate first n squares in reverse order. A38397

Number of medial GL-racks of order n, up to isomorphism. A383146

T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 1 or 3 neighboring 1s. A296578

Number of n-digit "Punctual Birds" (cf. A131881). A132133

a(n) = ∑_i=0..n digsum₅(i)⁴, where digsum₅(i) = A053824(i). A231671

Irregular table read by rows: Take a Reuleaux triangle with all diagonals drawn, as in A340639. Then T(n,k) = number of k-sided polygons in that figure for k >= 3. A340614

Rounded volume of a regular octahedron with edge length n. A71400

Expansion of ∑_k>=1 x^k/(1 + x^k)⁴. A320901

Index of first occurrence of -n in A000319, or -1 if -n never appears there. A381231