Properties of the Number 13690

Thirteen Thousand Six Hundred Ninety

Basics

Value: 13689 → 13690 → 13691

Parity: even

Prime: No

Previous Prime: 13687

Next Prime: 13691

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 37 ²

Divisors: 1, 2, 5, 10, 37, 74, 185, 370, 1369, 2738

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010101111010

Octal: 32572

Duodecimal: 7B0A

Hexadecimal: 357a

Square: 187416100

Square Root: 117.00427342623003

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) = 10·n². A33583

Numbers of the form (square + 1) that are not squarefree. A124809

Numbers such that the two adjacent integers are a perfect square and a prime. A163492

Numbers that are multiple-digit narcissistic numbers in exactly three bases. A256362

The curvature of touching circles inscribed in a special way in the larger segment of circle of radius 10/9 divided by a chord of length 4/3. A247335

Numbers of the form m² + 1 that can be expressed in more than one way as j² + k² with j > k > 1. A299708

a(n) = 9·n² + 1. A247792

a(n) = ∑_{k=0..floor(n/3)} binomial(2·n-4·k,n-3·k). A360151

(Round(c^prime(n)) - 1)/prime(n), where c is the tetranacci constant (A086088). A239544

First differences of A307632. A348773