Properties of the Number 13803

Thirteen Thousand Eight Hundred Three

Basics

Value: 13802 → 13803 → 13804

Parity: odd

Prime: No

Previous Prime: 13799

Next Prime: 13807

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 43 × 107

Divisors: 1, 3, 43, 107, 129, 321, 4601, 13803

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010111101011

Octal: 32753

Duodecimal: 7BA3

Hexadecimal: 35eb

Square: 190522809

Square Root: 117.48616939878498

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

Numbers n such that 54 'Reverse and Add' steps are needed to reach a palindrome. A65321

a(n) = 10000·log₁₀(n) rounded up. A4230

a(n) = 3·n*(5·n-1)/2. A167469

Let b(n) be the n-th positive integer that is a palindrome in base 2. a(n) = the smallest multiple of b(n) that is > b(n) and that is also a palindrome in binary. A162843

a(n) = 12·n² - 2·n - 1. A185918

Numbers whose base-2 representation is a "nested" palindrome. A373941

Numbers, when written in binary, that are a proper substring of the concatenation (with repetition) in increasing order of their prime factors, when written in binary. A378894

Smallest k not a palindrome and not divisible by 10 such that k and R(k) (A004086) both are divisible by the n-th prime. A75605

Smallest k not a palindrome and not divisible by 10 such that k and R(k) both are divisible by n, or 0 if n is divisible by 10. A75606

A130041(n) is the a(n)-th composite number. A130042