Properties of the Number 45018

Forty-Five Thousand Eighteen

Basics

Value: 45017 → 45018 → 45019

Parity: even

Prime: No

Previous Prime: 45013

Next Prime: 45053

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 41 × 61

Divisors: 1, 2, 3, 6, 9, 18, 41, 61, 82, 122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010111111011010

Octal: 127732

Duodecimal: 22076

Hexadecimal: afda

Square: 2026620324

Square Root: 212.17445652104308

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

Positive integers n that are equal to the determinant of the circulant matrix formed by the decimal digits of n. A219324

Positive integers k that are equal to the absolute value of the determinant of the circulant matrix formed by the decimal digits of k. A219327

Positive integers m that are equal to the determinant of the circulant matrix formed by the decimal digits of m in reverse order. A219326

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

Number of quadruples [i,j,k,l] with all entries between 1 and n such that gcd(i,j) = gcd(k,l). A124162

Expansion of solution to an algebraic functional equation. A113299

Positive integers m that are equal to the determinant of the left circulant matrix formed by the decimal digits of m. A348428

Decimal expansion of x<0 satisfying 2·x+cos(x)=0. A199621

Numbers whose base-4 representation contains exactly one 0 and no 1's. A45018

Numbers k such that k divides the sum of the digits of k^3k. A383746