Properties of the Number 20802

Twenty Thousand Eight Hundred Two

Basics

Value: 20801 → 20802 → 20803

Parity: even

Prime: No

Previous Prime: 20789

Next Prime: 20807

Digit Sum: 12

Digital Root: 3

Palindrome: Yes

Factorization: 2 × 3 × 3467

Divisors: 1, 2, 3, 6, 3467, 6934, 10401, 20802

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101000101000010

Octal: 50502

Duodecimal: 10056

Hexadecimal: 5142

Square: 432723204

Square Root: 144.22898460434365

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 A299254. A299260

Number of non-equivalent binary n X n matrices with two nonadjacent 1's. A232567

Numbers which are the sum of their proper divisors containing the digit 4. A59463

Palindromes that are divisible by 6. A45641

Number of partitions of 5n such that cn(0,5) <= cn(1,5) = cn(4,5) < cn(2,5) = cn(3,5). A36883

Base-10 palindromes that start with 2. A43037

Dates after Jan 01 00 in chronological order which are palindromic when they are written in the format D.M.YY. The terms are listed as numbers (without the dots). A210890

Dates after Jan 01 00 in chronological order which are palindromic when they are written in the format D.M.YY. The terms are listed as numbers. Leading zeros of the terms are suppressed. A210892

Palindromes that are the sum of consecutive initial odd composites. A58850

Palindromic abundant numbers. A98775