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Properties of the Number 15118

Fifteen Thousand One Hundred Eighteen

Basics

Value: 15117 → 15118 → 15119

Parity: even

Prime: No

Previous Prime: 15107

Next Prime: 15121

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 7559

Divisors: 1, 2, 7559, 15118

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 11101100001110

Octal: 35416

Duodecimal: 88BA

Hexadecimal: 3b0e

Square: 228553924

Square Root: 122.95527642195759

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 rooted trees with n nodes, at least half of which are leaves. A358583
T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A316925
Array read by antidiagonals: T(m,n) is the number of m X n binary arrays with all 1's connected and no 1 having more than two 1's adjacent. A391820
Triangle T(n,k) giving the largest member of "the infinite trunk of factorial beanstalk" (A219666) whose factorial base representation contains n digits (A084558) and the most significant such digit (A099563) is k. A230429
A Chebyshev transform of the little Schroeder numbers A001003. A162548
Number of 2-colorings of length n without an arithmetic progression of length 5. A378197
Numbers k such that (7·102·k+1 - 9·10k - 7)/9 is prime. A183181
First differences of A038625. A87239
Number of 4 X n -1,1 arrays such that the sum over i=1..4,j=1..n of i·x(i,j) is zero and rows are nondecreasing (ways to put n thrusters pointing east or west at each of 4 positions 1..n distance from the hinge of a south-pointing gate without turning the gate). A225311
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 110", based on the 5-celled von Neumann neighborhood. A270170