Properties of the Number 28626

Twenty-Eight Thousand Six Hundred Twenty-Six

Basics

Value: 28625 → 28626 → 28627

Parity: even

Prime: No

Previous Prime: 28621

Next Prime: 28627

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 13 × 367

Divisors: 1, 2, 3, 6, 13, 26, 39, 78, 367, 734

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111111010010

Octal: 67722

Duodecimal: 14696

Hexadecimal: 6fd2

Square: 819447876

Square Root: 169.19219840169936

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

Cupolar numbers: a(n) = (n+1)*(5·n² + 7·n + 3)/3. A96000

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each row and column not divisible by 7, read as a binary number with top and left being the most significant bits. A263117

Number of unlabeled P-series with n elements. A349276

a(n) is the number of permutations of length n that avoid the pattern 321 and the mesh pattern (12, 179) or the same sequence for the mesh patterns (12, 185), (12, 314), (12, 410). A289590

a(n) = ∑_{k=0..floor(n/3)} (k+1) * binomial(k,n-3·k)². A375470

a(n) is the least k for which A340594(k) = n. A340595

Indices of primes in sequence defined by A(0) = 43, A(n) = 10·A(n-1) + 33 for n > 0. A101730

Number of (n+2)X(1+2) 0..1 arrays with each row and column not divisible by 7, read as a binary number with top and left being the most significant bits. A263113

Number of (n+2)X(4+2) 0..1 arrays with each row and column not divisible by 7, read as a binary number with top and left being the most significant bits. A263116

Expansion of (theta₃(z)*theta₃(15z) + theta₂(z)*theta₂(15z))². A28626