Properties of the Number 28325

Twenty-Eight Thousand Three Hundred Twenty-Five

Basics

Value: 28324 → 28325 → 28326

Parity: odd

Prime: No

Previous Prime: 28319

Next Prime: 28349

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 11 × 103

Divisors: 1, 5, 11, 25, 55, 103, 275, 515, 1133, 2575

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111010100101

Octal: 67245

Duodecimal: 14485

Hexadecimal: 6ea5

Square: 802305625

Square Root: 168.30032679706835

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

T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 nXk array. A218592

Expansion of ∏_k>=1 (∏_j=1..k 1/(1 - x^k·j)^j). A327066

Structured truncated tetrahedral numbers. A100156

Third differences of A000219. A191661

Odd numbers m for which A379113(m²) > 1, i.e., k = m² has a proper unitary divisor d > 1 such that A048720(A065621(σ(d)),σ(k/d)) is equal to σ(k). A379122

Hilltop maps: number of nX5 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 nX5 array. A218589

Hilltop maps: number of 3 X n binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 3 X n array. A218594

Odd elements to the right of the central elements of the 5-Pascal triangle A028313. A28325