Properties of the Number 11828

Eleven Thousand Eight Hundred Twenty-Eight

Basics

Value: 11827 → 11828 → 11829

Parity: even

Prime: No

Previous Prime: 11827

Next Prime: 11831

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 2957

Divisors: 1, 2, 4, 2957, 5914, 11828

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10111000110100

Octal: 27064

Duodecimal: 6A18

Hexadecimal: 2e34

Square: 139901584

Square Root: 108.75660899458019

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

Coordination sequence for (2,5,7) tiling of hyperbolic plane. A265066

a(n)³ is smallest cube containing exactly n 5's. A48370

T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum. A185497

T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums. A188311

A185243(n) is the a(n)-th triangular number. A185257

Triangle T(n,k), n>=0, 0<=k<=3n, read by rows: row n gives the coefficients of the chromatic polynomial of the complete tripartite graph K_n,n,n, highest powers first. A212220

Numbers which need ten 'Reverse and Add' steps to reach a palindrome. A65215

Number of (n+1) X 2 binary arrays with every 2 X 2 subblock sum equal to some horizontal or vertical neighbor 2 X 2 subblock sum. A185489

Two-column array read by rows, where the n-th row is the least pair of integers (p, q) such that f(p) = f(n) + q·f(n+1) where f(n) = A002496(n) is the n-th prime of the form k²+1. A352582

Numbers such that ten iterations of Reverse and Add are needed to reach a palindrome. A15991