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Properties of the Number -13971

Thirteen Thousand Nine Hundred Seventy-One

Basics

Value: -13972 → -13971 → -13970

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 4657

Divisors: 1, 3, 4657, 13971

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11011010010011

Octal: -33223

Duodecimal: -8103

Hexadecimal: -3693

Square: 195188841

Square Root: 118.19898476721363

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

Parameters n for which the elliptic curve y2=x3-n has rank 4. A179137
Triangle T(n, k) = Numbers of ways to place k points on a triangular grid of side n so that no three of them are vertices of an equilateral triangle with sides parallel to the grid. Triangle read by rows. A243211
Unexplained difference between two partition generating functions. A7329
Number of ordered quintuples of distinct pairwise coprime positive integers with largest element n. A186976
Number of ways to place 5 points on a triangular grid of side n, so that no three of them are vertices of an equilateral triangle with sides parallel to the grid. A243214
T(n,m) is the numerator of the resistance between two diametrically opposite nodes of a rectangular electric network of n·m quadratic cells in which all edges are replaced by one-ohm resistors, where T(n,m) is a triangle read by rows. A357113
Index where prime(n) appears as a term in A379442. A379558
Expansion of g.f.: (1-x)*(1+2·x)/((1+x)*(1-3·x+x2)). A129905
Number of independent sets of nodes in the generalized Petersen graph G(2n+1,2) (n>=1). A182077
Triangle read by rows in which each new term is the sum of its two largest neighbors in the structure. A278645