Properties of the Number 28475

Twenty-Eight Thousand Four Hundred Seventy-Five

Basics

Value: 28474 → 28475 → 28476

Parity: odd

Prime: No

Previous Prime: 28463

Next Prime: 28477

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 ² × 17 × 67

Divisors: 1, 5, 17, 25, 67, 85, 335, 425, 1139, 1675

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111100111011

Octal: 67473

Duodecimal: 1458B

Hexadecimal: 6f3b

Square: 810825625

Square Root: 168.74537030686204

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

a(n) = a(n-1) + floor(a(n-2)/2) with a(0)=1, a(1)=2. A64324

Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)+1 are twin primes with p(h) = h-th prime. A129313

Total number of Hamiltonian cycles avoiding the root-edge in rooted cubic bipartite planar maps with 2n nodes. A28475

Number of 2nX4 0..2 arrays with values 0..2 introduced in row major order and each element equal to exactly one horizontal or vertical neighbor. A198529

Table read by antidiagonals: T(b,n) is the number of n-step self avoiding walks on a 2D square grid confined inside an infinite well of width 2b where the walk starts at the middle of the well bottom. A336863