Properties of the Number 28710

Twenty-Eight Thousand Seven Hundred Ten

Basics

Value: 28709 → 28710 → 28711

Parity: even

Prime: No

Previous Prime: 28703

Next Prime: 28711

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 11 × 29

Divisors: 1, 2, 3, 5, 6, 9, 10, 11, 15, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000000100110

Octal: 70046

Duodecimal: 14746

Hexadecimal: 7026

Square: 824264100

Square Root: 169.44025495731526

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 rooted highly irregular trees with n nodes. A259863

Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X 2 array. A219680

a(n) is the number of regions into which three-dimensional Euclidean space is divided by n-1 planes parallel to each face of a regular tetrahedron with edge length n, dividing the edges into unit segments. A364401

Expansion of (1/x) * Series_Reversion( x * (1 - x)² / (1 + x³ / (1 - x)³) ). A389550

Numbers n with property that n+41, n²+41 and n³+41 are all primes. A175260

Numbers n such that (n, σ(n), τ(n)) lies on a sphere with integral radius centered at the origin, i.e., n² + σ(n)² + τ(n)² is a square. A243455

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically. A207246

Expansion of (theta₃(z)*theta₃(5z)*theta₃(25z)+theta₂(z)*theta₂(5z)*theta₂(25z)). A28710