Properties of the Number 23818

Twenty-Three Thousand Eight Hundred Eighteen

Basics

Value: 23817 → 23818 → 23819

Parity: even

Prime: No

Previous Prime: 23813

Next Prime: 23819

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 11909

Divisors: 1, 2, 11909, 23818

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110100001010

Octal: 56412

Duodecimal: 1194A

Hexadecimal: 5d0a

Square: 567297124

Square Root: 154.33081351434652

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 n X 5 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself. A266009

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (composite numbers), t = (odd natural numbers). A25104

Sum of exponents in prime-power factorization of C(2n,n-2). A23818