Properties of the Number 28039

Twenty-Eight Thousand Thirty-Nine

Basics

Value: 28038 → 28039 → 28040

Parity: odd

Prime: No

Previous Prime: 28031

Next Prime: 28051

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 11 × 2549

Divisors: 1, 11, 2549, 28039

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110110000111

Octal: 66607

Duodecimal: 14287

Hexadecimal: 6d87

Square: 786185521

Square Root: 167.44849954538262

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

a(n) is the least k such that the remainder when 10^k is divided by k is n. A127818

Number of 11 X 11 arrays of squares of integers, symmetric about the diagonal and under 90-degree rotation, with all rows summing to n. A156407

Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, a(n) XOR a(n+1) is a cube (where XOR denotes the XOR binary operator). A296615

Expansion of 1/((1-3x)(1-4x)(1-7x)(1-9x)). A28039