Properties of the Number 28056

Twenty-Eight Thousand Fifty-Six

Basics

Value: 28055 → 28056 → 28057

Parity: even

Prime: No

Previous Prime: 28051

Next Prime: 28057

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 7 × 167

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110110011000

Octal: 66630

Duodecimal: 142A0

Hexadecimal: 6d98

Square: 787139136

Square Root: 167.49925372968085

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

Product of a prime and the following number. A36690

Exponential Riordan array [e^x/(1-x),x]. A129652

a(n) is the number of canonical polygons with n edges having exactly 1 line of reflection symmetry. A307455

a(n) = 25·n² + 25·n + 6. A177059

a(n) = ∑_i=0..n ∑_j=0..n (i XOR j), where XOR is the binary logical exclusive-or operator. A224923

Maximum number of 6 sphinx tile shapes in a sphinx tiled hexagon of order n. A291582

a(n) = number of conjugacy classes in PSL₃(prime(n)). A124679

a(n) = 1728·n - 1320. A157263

Integers n > 10563 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10563. A63064

Numbers k such that k² divides 2·Fibonacci(k). A130163