Properties of the Number 11813

Eleven Thousand Eight Hundred Thirteen

Basics

Value: 11812 → 11813 → 11814

Parity: odd

Prime: Yes

Previous Prime: 11807

Next Prime: 11821

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 11813

Divisors: 1, 11813

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111000100101

Octal: 27045

Duodecimal: 6A05

Hexadecimal: 2e25

Square: 139546969

Square Root: 108.6876257906115

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

Partial sums of A299285. A299286

"Half-Catalan numbers": a(n) = ∑_{k=1..floor(n/2)} a(k)*a(n-k) with a(1) = 1. A992

Prime numbers ending in the prime number 13. A244763

Primes p with q(p) + 1 also prime, where q(.) is the strict partition function (A000009). A234530

Smallest positive number that can be written as sum of distinct Fibonacci numbers in n ways. A13583

Write the coefficient of xⁿ/n! in the expansion of (x/(exp(x)-1))^1/2 as f(n)/g(n); sequence gives f(n). A241885

Primes of the form k² + prime(k). A184935

Number of partitions p of n such that the number of numbers having multiplicity 1 in p is a part and the number of numbers having multiplicity > 1 is not a part. A241416

Primes having only {1, 3, 8} as digits. A385778

Numerators of a power series characterizing how powers of the cosine function converge to the Gaussian function. A350194