Properties of the Number 11843

Eleven Thousand Eight Hundred Forty-Three

Basics

Value: 11842 → 11843 → 11844

Parity: odd

Prime: No

Previous Prime: 11839

Next Prime: 11863

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 13 × 911

Divisors: 1, 13, 911, 11843

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10111001000011

Octal: 27103

Duodecimal: 6A2B

Hexadecimal: 2e43

Square: 140256649

Square Root: 108.82554847093581

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 k such that k and k + 1 are both lazy-Lucas-Niven numbers (A351719). A351720

Numbers that are the sum of eight fourth powers in exactly six ways. A345838

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 1,3,2,4,0 for x=0,1,2,3,4. A196922

Sum of first n 5-almost primes. A86047

G.f. satisfies A(x) = 1 + x²*A(x)⁴ / (1 - x·A(x)). A365690

First differences of A160644. A160646

Nonprimes such that it takes exactly 3 iterations of reverse-and-add digits to generate a prime. A245208

Expansion of ∑_k>0 (1/(1-x^k)⁵ - 1). A363695

Number of achiral noncrossing partitions composed of n blocks of size 4. A369930

a(n) = 25·n²/2 - 11·n/2 + 1. A383465