Properties of the Number 28282

Twenty-Eight Thousand Two Hundred Eighty-Two

Basics

Value: 28281 → 28282 → 28283

Parity: even

Prime: No

Previous Prime: 28279

Next Prime: 28283

Digit Sum: 22

Digital Root: 4

Palindrome: Yes

Factorization: 2 × 79 × 179

Divisors: 1, 2, 79, 158, 179, 358, 14141, 28282

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111001111010

Octal: 67172

Duodecimal: 1444A

Hexadecimal: 6e7a

Square: 799871524

Square Root: 168.17253045607657

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 partitions of n into at most 1 copy of 1, 2 copies of 2, 3 copies of 3, ... . A52335

a(n) is the index of the smallest triangular number containing exactly n 9's. A48364

Partial sums of binomials bin(3n,n)²/(2n+1). A188682

Floor(6ⁿ/(1+1/(2·cos(5*π/11)))ⁿ). A240840

Consider a decimal number of k>=2 digits x = d_k*10^k-1 + d_k-1*10^k-2 + … + d₂*10 + d₁ and the transform T(x)-> (d_k+d_k-1 mod 10)*10^k-1 + (d_k-1+d_k-2 mod 10)*10^k-2 + … + (d₂+d₁ mod 10)*10 + (d₁+d(k) mod 10). Sequence lists the numbers·such that T(x)=0. A243994

Numbers with digits 2 and 8 only. A284922

Expansion of 1/(1 + x * ∑_k>=1 prime(k)*x^k). A307899

Numbers whose consecutive digits differ by 6. A48408

Palindromic even numbers with an odd number of distinct prime factors. A75809

a(n) = concatenate(n, A010888(2·n), reverse(n)), where A010888 = digital root. A82944