Properties of the Number 18338

Eighteen Thousand Three Hundred Thirty-Eight

Basics

Value: 18337 → 18338 → 18339

Parity: even

Prime: No

Previous Prime: 18329

Next Prime: 18341

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 53 × 173

Divisors: 1, 2, 53, 106, 173, 346, 9169, 18338

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100011110100010

Octal: 43642

Duodecimal: A742

Hexadecimal: 47a2

Square: 336282244

Square Root: 135.41787178950938

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 pairs (y, v), where y is a partition of n and v is a sub-multiset of y whose cardinality equals the number of distinct parts in y. A355383

Least positive integer multiples of angle·such that their direction cosines form a unit vector: ∑_k>0 cos(a(k)*x)² = 1, where a(1)=1, a(n+1)>a(n) and x=3-π/2. A80139

Inverse permutation to A253561: a(n) = A252752(A122111(n)). A253562

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 54", based on the 5-celled von Neumann neighborhood. A270024

Divisors of 216. A18338

T(n,k) = number of n-bit binary numbers with every initial substring not divisible by k. A180835

Number of (n+1) X (7+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251087