Properties of the Number 28424

Twenty-Eight Thousand Four Hundred Twenty-Four

Basics

Value: 28423 → 28424 → 28425

Parity: even

Prime: No

Previous Prime: 28411

Next Prime: 28429

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 11 × 17 × 19

Divisors: 1, 2, 4, 8, 11, 17, 19, 22, 34, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111100001000

Octal: 67410

Duodecimal: 14548

Hexadecimal: 6f08

Square: 807923776

Square Root: 168.59418732566078

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

a(n) = (n³ + 2·n)/3. A6527

Number of superdiagonal partitions: partitions (p1, p2, p3, ...) of n such that π >= i. A238873

Number of arrays of n nonnegative integers with value i>0 appearing only after i-1 has appeared at least 3 times. A210540

Number of compositions (ordered partitions) of n into distinct parts, the least being 4. A339165

Real part of absolute Gaussian perfect numbers, in order of increasing magnitude. A102531

Fibonacci sequence beginning 0, 11. A22345

s(k)-s(j), where the pairs (k,j) are given by A205867 and A205868, and s(k) denotes the (k+1)-st Fibonacci number. A205869

Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from the 4 vertices and the equally spaced 4·n points placed on the sides of a square when every pair of the 4 + 4·n points are connected by a circle and where the points lie at the ends of the circle's diameter. A373109

Expansion of ψ(-x³) / f(-x) in powers of·where ψ(), f() are Ramanujan θ functions. A271593

Number of (binary) max-heaps on n elements from the set {0,1} containing exactly five 0's. A326506