Properties of the Number 13518

Thirteen Thousand Five Hundred Eighteen

Basics

Value: 13517 → 13518 → 13519

Parity: even

Prime: No

Previous Prime: 13513

Next Prime: 13523

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 751

Divisors: 1, 2, 3, 6, 9, 18, 751, 1502, 2253, 4506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11010011001110

Octal: 32316

Duodecimal: 79A6

Hexadecimal: 34ce

Square: 182736324

Square Root: 116.26693425045661

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

Multiples of 18 containing a 18 in their decimal representation. A121038

Number of subsets of {1..n} whose greatest element can be written as a (strictly) positive linear combination of the others. A365043

Sum of the third largest parts of the partitions of n into 5 parts. A308825

Consecutive states of the linear congruential pseudo-random number generator 171·s mod 30269 when started at s=1. A385031

Positions of record high water marks in A246024. A246026

Consecutive states of the linear congruential pseudo-random number generator for Smalltalk-80 when started at 1. A384220

30 'Reverse and Add' steps are needed to reach a palindrome. A65319

G.f.: A(x) = x/(1 - x - G001190(x²)), where G001190 is the g.f. of A001190, the Wedderburn-Etherington numbers (binary rooted trees). A93126

a(1)=1, then a(n) = smallest number whose square is larger than 2*(a(n-1))². A175539

Number of -n..n arrays x(0..3) of 4 elements with zero sum and elements alternately strictly increasing and strictly decreasing. A200058