Properties of the Number 28719

Twenty-Eight Thousand Seven Hundred Nineteen

Basics

Value: 28718 → 28719 → 28720

Parity: odd

Prime: No

Previous Prime: 28711

Next Prime: 28723

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 3191

Divisors: 1, 3, 9, 3191, 9573, 28719

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000000101111

Octal: 70057

Duodecimal: 14753

Hexadecimal: 702f

Square: 824780961

Square Root: 169.4668109099832

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 ways to write n as an ordered sum of 6 nonprime numbers. A341483

(1/2)*A206803. A206804

Numbers k such that σ(k) = ψ(k) + π(k) + ω(k)⁶. A392909

Numerators of continued fraction convergents to sqrt(87). A41154

Number of (w,x,y,z) with all terms in {1,...,n} and w >= (geometric mean of x,y,z). A212142

Numbers k such that σ(k-3) + σ(k+3) = σ(2·k). A67129

Number of achiral simplicial 4-clusters with n cells. A182299

Expansion of (theta₃(z)*theta₃(7z)*theta₃(49z)+theta₂(z)*theta₂(7z)*theta₂(49z))². A28719