Properties of the Number 28825

Twenty-Eight Thousand Eight Hundred Twenty-Five

Basics

Value: 28824 → 28825 → 28826

Parity: odd

Prime: No

Previous Prime: 28817

Next Prime: 28837

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 ² × 1153

Divisors: 1, 5, 25, 1153, 5765, 28825

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000010011001

Octal: 70231

Duodecimal: 14821

Hexadecimal: 7099

Square: 830880625

Square Root: 169.77926846349644

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

Partial sums of A299291. A299292

a(n) = n-th multiple of n with digit sum n. A82260

Number of necklace compositions of n where no pair of circularly adjacent parts is relatively prime. A328602

G.f.: ∏_k>=1 (1 + x^k) / (1 - x^k³). A280277

Values k: A165495(k) is odd. A165496

a(n) is the largest number k such that i·n - 1 is squarefree for all 1 <= i <= k, or 0 if no such number exists. A383546

List of sizes of conjugacy classes of Mathieu simple group M₂₄ of order 244823040. A28825