Properties of the Number 28026

Twenty-Eight Thousand Twenty-Six

Basics

Value: 28025 → 28026 → 28027

Parity: even

Prime: No

Previous Prime: 28019

Next Prime: 28027

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 173

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 81, 162

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110101111010

Octal: 66572

Duodecimal: 14276

Hexadecimal: 6d7a

Square: 785456676

Square Root: 167.40967713964446

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

Number of irredundant sets in the n-cycle graph. A290493

Numbers k such that 24·k-1 has at least three factors 7 and the partition function evaluated at k has at least the same number of factors 7 as 24·k-1. A340957

Engel expansion of Mertens's constant (A077761). A96167

Primitive practical numbers of the form 2·3ⁱ * prime(k). A367481

Number of nX3 0..2 arrays avoiding the pattern z-2 z-1 z in any row or column. A206695

Number of (1+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards. A233498

Number of (1+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards. A233619

Expansion of 1/((1-3x)(1-4x)(1-5x)(1-7x)). A28026