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Properties of the Number 13186

Thirteen Thousand One Hundred Eighty-Six

Basics

Value: 13185 → 13186 → 13187

Parity: even

Prime: No

Previous Prime: 13183

Next Prime: 13187

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 19 × 347

Divisors: 1, 2, 19, 38, 347, 694, 6593, 13186

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001110000010

Octal: 31602

Duodecimal: 776A

Hexadecimal: 3382

Square: 173870596

Square Root: 114.8303095876694

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 balls in pyramid with base either a regular hexagon or a hexagon with alternate sides differing by 1 (balls in hexagonal pyramid of height n taken from hexagonal close-packing). A19298
Principal diagonal of the convolution array A213771. A213772
Triangle T(n,k), n>=0, 0<=k<=n, read by rows: row n gives the coefficients of the chromatic polynomial of the (n,2)-Turán graph, highest powers first. A266972
Numerators of continued fraction convergents to sqrt(220). A41410
Location of record values in A080577; also partial sums of A006128 plus 1. A124920
Pisot sequence P(6,11), a(0)=6, a(1)=11, a(n+1) is the nearest integer to a(n)2/a(n-1). A21011
Numbers which retain their position in A073666 (position not disturbed by the rearrangement). A73667
Number of compositions of n such that the smallest part is divisible by the number of parts. A171628
Sum of the next to smallest parts in the partitions of 4n into 4 parts with smallest part = 1. A239195
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 169", based on the 5-celled von Neumann neighborhood. A270463