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Properties of the Number 28192

Twenty-Eight Thousand One Hundred Ninety-Two

Basics

Value: 28191 → 28192 → 28193

Parity: even

Prime: No

Previous Prime: 28183

Next Prime: 28201

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 5 × 881

Divisors: 1, 2, 4, 8, 16, 32, 881, 1762, 3524, 7048

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111000100000

Octal: 67040

Duodecimal: 14394

Hexadecimal: 6e20

Square: 794788864

Square Root: 167.90473489452285

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

T(n,k) = 1/4 the number of (n+1) X (k+1) binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3. A184604
Expansion of ∏k>=1 1/(1 - xk * (k + x)). A336975
Number of partitions of n containing m(4) as a part, where m denotes multiplicity. A240489
Number of Motzkin excursions of length n with an even number of humps and an odd number of peaks. A325926
Number of close American football games: number of ways for the game to end after n points have been scored and never be separated by more than one score after each play. A300998
Trajectory of 8 under iteration of the map k -> A087712(k). A144813
1/4 the number of (n+1) X 4 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3. A184598
1/4 the number of (n+1) X 5 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3. A184599
Number of walks within N3 (the first octant of Z3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (-1, 0, 1), (-1, 1, 0), (1, 0, 0)}. A148509
Iterate the map k -> A087712(k) starting at n; a(n) is the number of steps at which we see a repeated term for the first time; or -1 if the trajectory never repeats. A98282