Properties of the Number 11812

Eleven Thousand Eight Hundred Twelve

Basics

Value: 11811 → 11812 → 11813

Parity: even

Prime: No

Previous Prime: 11807

Next Prime: 11813

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 2953

Divisors: 1, 2, 4, 2953, 5906, 11812

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111000100100

Octal: 27044

Duodecimal: 6A04

Hexadecimal: 2e24

Square: 139523344

Square Root: 108.6830253535482

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

Convolution of Pell(n) and 2ⁿ. A94706

Maximal term of TRIP-Stern sequence of level n corresponding to permutation triple (e,13,23). A271486

Number of square multiset partitions of integer partitions of n. A323531

Numerator of (1+σ(s)) / ((s+1)/2), where s is the square of n prime-shifted once (s = A003961(n)² = A003961(n²)). A337338

Number of distinct lines passing through 3 or more points in an n X n grid. A225606

a(n) is the sum of the prime factors (with repetition) of the sum of the preceding terms; a(1)=a(2)=1. A268868

Coefficients of the C-Rogers mod 14 identity. A105782

Smallest integer m such that gcd{x | sum of proper divisors of·is m} is equal to 2·n, when there are at least two such x's. A253303

a(n) is the sum of the prime factors, with repetition, of the sum of all preceding terms, with initial terms a(1)=1 and a(2)=2. A269004

a(n) is obtained by applying the map k -> composite(k) n times, starting at n. A280327