Properties of the Number 13191

Thirteen Thousand One Hundred Ninety-One

Basics

Value: 13190 → 13191 → 13192

Parity: odd

Prime: No

Previous Prime: 13187

Next Prime: 13217

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 4397

Divisors: 1, 3, 4397, 13191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11001110000111

Octal: 31607

Duodecimal: 7773

Hexadecimal: 3387

Square: 174002481

Square Root: 114.85207877961983

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) = ∑_{k=0..floor(n/2)} A026637(n, k). A26645

Strings of 5 digits from 1...9, such that no formula using the single digits in the given order exists that evaluates to 0. A288355

Positions in A181391 where the terms listed in A171863 appear. A171864

Parameters n for which the elliptic curve y²=x³+n has rank 4. A179124

Number of P-graphs with vertical symmetry. A7163

Convolution of (F(2), F(3), F(4), ...) and primes. A23657

Number of distinct solutions of sum{i=1..7}(x(2i-1)*x(2i)) = 1 (mod n), with x() only in 2..n-2. A180830

a(n) is the first position where the digits of n occur simultaneously in the decimal expansions of π and e. A381980

Multiplicity of highest weight (or singular) vectors associated with character chi₆₆ of Monster module. A34454

Partial sums of A034897. A174226