Properties of the Number 28295

Twenty-Eight Thousand Two Hundred Ninety-Five

Basics

Value: 28294 → 28295 → 28296

Parity: odd

Prime: No

Previous Prime: 28289

Next Prime: 28297

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 5659

Divisors: 1, 5, 5659, 28295

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110111010000111

Octal: 67207

Duodecimal: 1445B

Hexadecimal: 6e87

Square: 800607025

Square Root: 168.21117679868956

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

Sum of numerator and denominator in a rational approximation j/k of q = log(2)/log(3), such that q - j/k is a new minimum, i.e., q is approximated from below. A355514

Sum of numerator and denominator in a rational approximation j/k of q = log(2)/log(3), such that abs(j/k - q) is a new minimum. A355513

a(n) = 7ⁿ mod 2ⁿ. A138616

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 179", based on the 5-celled von Neumann neighborhood. A270624

A triangle sequence derived from setting an Euler numbers A122045 generalization equal to the MacMahon numbers A060187 to get a generating function expansion: p(x,t) = (exp(t)* (1 - exp(x))* x)/(exp(2 t + t x) + exp(t)* x - exp(t·x)* x). A178234

Decimal expansion of ∑_k>=1 (-1)^k+1 * (O(k)/k)², where O(k) = A350669(k)/A350670(k) is the k-th odd harmonic number (or harmonic number of the second kind). A393143

a(n) = n⁶ - (883/60)*n⁵ + (157/3)*n⁴ + (2155/12)*n³ - (4570/3)*n² + (42767/15)*n - 967. A28295

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically. A207273