Properties of the Number 28413

Twenty-Eight Thousand Four Hundred Thirteen

Basics

Value: 28412 → 28413 → 28414

Parity: odd

Prime: No

Previous Prime: 28411

Next Prime: 28429

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 11 × 41

Divisors: 1, 3, 7, 9, 11, 21, 33, 41, 63, 77

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111011111101

Octal: 67375

Duodecimal: 14539

Hexadecimal: 6efd

Square: 807298569

Square Root: 168.56156145456177

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

Consider all Pythagorean triples (X,X+7,Z); sequence gives X values. A76296

Smallest number k such that M(n)²-k·M(n)+1 is prime with M(n)= Mersenne primes =A000668(n). A139425

Triangle T(n,k), read by rows, given by (1,2,2,3,3,4,4,5,5,6,6,...) δ (1,0,1,0,1,0,1,0,1,0,1,0,1,...) where δ is the operator defined in A084938. A200659

Number of non-isomorphic maximal independent sets of the n-cycle graph. A127685

Numbers k that divide the (left) concatenation of all numbers <= k written in base 13 (most significant digit on left). A29482

Reduced denominators of the coefficients in a series expansion for γ[x]. A54380

The hyper-Wiener index of the dendrimer D₂[n], defined pictorially in the A. R. Ashrafi et al. reference. A224432

Odd numbers n such that the sum of the binary digits of n and n² both equal 12. A261593

Array read by antidiagonals upwards where A(n,k) is the number of k-times partitions of n. A323718

T(n,k)=Number of nXk 0..1 arrays with every element equal to 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero. A298177