Properties of the Number 13662

Thirteen Thousand Six Hundred Sixty-Two

Basics

Value: 13661 → 13662 → 13663

Parity: even

Prime: No

Previous Prime: 13649

Next Prime: 13669

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 11 × 23

Divisors: 1, 2, 3, 6, 9, 11, 18, 22, 23, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11010101011110

Octal: 32536

Duodecimal: 7AA6

Hexadecimal: 355e

Square: 186650244

Square Root: 116.88455843266894

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) = n*(n+1)*(2·n+1)*(n²+n+3)/30. A61927

T(n,k)=1/128 the number of (n+2)X(k+2) binary arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace. A185866

Number of partitions of n into Fibonacci parts (with 2 types of 1). A7000

Indices of primes in the tetranacci sequence A001631. A247027

Numbers n = concat(a,b) such that φ(n) = φ(a) * φ(b), where φ = A000010. A147619

Irregular table read by rows: T(n,k) = number of k-gons, k >= 3, formed inside a triangle with edge length 1 by the straight line segments mutually connecting all vertices and points that divide the sides into segments with lengths equal to the Farey series of order n = A006842(n,m)/A006843(n,m), m = 1..A005728(n). A358951

a(n) = n*(7·n² + 15·n + 8)/6. A245301

Bessel function J₀(n) is a monotonically decreasing positive sequence. A46960

Number of ways to place eight distinct positive integers on a square, four on the corners and four on the sides such that the sum of the three values on each side is n. A380962

Add column entries of the table with rows (1,2,0,0...), (0,3,4,5,0,0...), (0,0,6,7,8,9,0,0...), (0,0,0,10,11,12,13,14,0,0...), ... A64694