Properties of the Number 18464

Eighteen Thousand Four Hundred Sixty-Four

Basics

Value: 18463 → 18464 → 18465

Parity: even

Prime: No

Previous Prime: 18461

Next Prime: 18481

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁵ × 577

Divisors: 1, 2, 4, 8, 16, 32, 577, 1154, 2308, 4616

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100100000100000

Octal: 44040

Duodecimal: A828

Hexadecimal: 4820

Square: 340919296

Square Root: 135.88230201170424

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) = (2 + sqrt(2))ⁿ + (2 - sqrt(2))ⁿ. A56236

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order. A209897

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum not 2 4 5 or 7 and every diagonal and antidiagonal sum 2 4 5 or 7. A251876

T(n,k)=3-level binary fanout graph coloring a rectangular array: number of nXk 0..6 arrays where 0..6 label nodes of a graph with edges 0,1 1,3 1,4 0,2 2,5 2,6 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph. A223423

Euler transform of Lucas numbers. A261031

Number of partitions p of n such that the number of distinct parts is not a part and max(p) - min(p) is a part. A241388

Number of partitions p of n such that (number of numbers of the form 5k + 1 in p) is a part of p. A241550

Number of meaningful differential operations of the k-th order on the space R¹². A129639

Positions of zeros in A345055, which is the Dirichlet inverse of A011772. A345053

Expansion of g.f. (1 + x - 2·x² - x³)/(1/2 - 2·x² + x⁴). A30435