Properties of the Number 40204

Forty Thousand Two Hundred Four

Basics

Value: 40203 → 40204 → 40205

Parity: even

Prime: No

Previous Prime: 40193

Next Prime: 40213

Digit Sum: 10

Digital Root: 1

Palindrome: Yes

Factorization: 2 ² × 19 × 23 ²

Divisors: 1, 2, 4, 19, 23, 38, 46, 76, 92, 437

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001110100001100

Octal: 116414

Duodecimal: 1B324

Hexadecimal: 9d0c

Square: 1616361616

Square Root: 200.50935140287098

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

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+161)² = y². A206426

a(n) is the smallest palindrome > a(n-1) such that a(1)+a(2)+...+a(n) is a prime. A51934

Palindromes of form k² + k + 4. A27717

Final terms of rows of A077529. A77530

Number of permutations of length n and order at most 3 whose powers all avoid the pattern 132. A326763

Sums of NW-SE diagonals of triangle A172171. A172172

Palindromes that start with 4. A43039

Palindromic even lucky numbers. A45960

Numbers k such that k² contains only digits {1,3,6}. A53892

Beginning with 1, palindromes such that successive differences are distinct primes. A88052