Properties of the Number 28247

Twenty-Eight Thousand Two Hundred Forty-Seven

Basics

Value: 28246 → 28247 → 28248

Parity: odd

Prime: No

Previous Prime: 28229

Next Prime: 28277

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 47 × 601

Divisors: 1, 47, 601, 28247

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111001010111

Octal: 67127

Duodecimal: 1441B

Hexadecimal: 6e57

Square: 797893009

Square Root: 168.0684384410113

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

Number of 1-sided strip polykites with n cells. A151529

Numbers k such that σ(k) - φ(k) is a 4th power. A115918

s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (odd natural numbers), t = A001950 (upper Wythoff sequence). A24600

s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (odd natural numbers), t = A001950 (upper Wythoff sequence). A25114

Number of T-frame polyominoes with n cells. A28247

Number of (n+1)X5 0..2 arrays containing all values 0..2 with every 2X2 subblock having one or two distinct values, and new values 0..2 introduced in row major order. A210091

Number of nX4 0..1 arrays with every element equal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300461