Properties of the Number 28041

Twenty-Eight Thousand Forty-One

Basics

Value: 28040 → 28041 → 28042

Parity: odd

Prime: No

Previous Prime: 28031

Next Prime: 28051

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 13 × 719

Divisors: 1, 3, 13, 39, 719, 2157, 9347, 28041

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110110001001

Octal: 66611

Duodecimal: 14289

Hexadecimal: 6d89

Square: 786297681

Square Root: 167.45447142432477

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

Triangle, read by rows, defined by: T(n,k) = (k+1)*T(n,k+1) - ∑_j=1..n-k-1 T(j,0)*T(n,j+k+1) for n>k with T(n,n)=1 for n>=0. A117396

Numbers k such that 43^k + 4 is prime. A230433

Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with new values introduced in order 0 sequentially upwards. A279378

Numbers m such that σ(m) = τ(m)! where σ(k) = A000203(k) and τ(k) = A000005(k). A351866

Expansion of 1/((1-3x)(1-4x)(1-7x)(1-11x)). A28041