Properties of the Number 28396

Twenty-Eight Thousand Three Hundred Ninety-Six

Basics

Value: 28395 → 28396 → 28397

Parity: even

Prime: No

Previous Prime: 28393

Next Prime: 28403

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 31 × 229

Divisors: 1, 2, 4, 31, 62, 124, 229, 458, 916, 7099

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111011101100

Octal: 67354

Duodecimal: 14524

Hexadecimal: 6eec

Square: 806332816

Square Root: 168.51112722903494

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

Triangle T(n,p) read by rows: the number of occurrences of p in the restricted growth functions of length n. A270236

Diagonal in array of n-gonal numbers A081422. A81435

Table of coefficients in functions that satisfy W_n(x) = W_n-1(x)^W_n(x), with W₀(x) = exp(x), as read by antidiagonals. A274391

E.g.f.: exp( T(T(T(x))) ), where T(x) = -LambertW(-x) is Euler's tree function (A000169). A268653

Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section. A287040

Sum of the sizes of the fourth blocks in all set partitions of {1,2,...,n}. A270496

Sum of the corners of a 2n+1 X 2n+1 square spiral. A325958

63-gonal numbers: a(n) = n*(61·n - 59)/2. A98140

Table of coefficients in functions that satisfy W_n(x) = W_n-1(x)^W_n(x), with W₀(x) = exp(x), as read by antidiagonals. A274741

Iterate the map in A006369 starting at 14. A28396