Properties of the Number 28201

Twenty-Eight Thousand Two Hundred One

Basics

Value: 28200 → 28201 → 28202

Parity: odd

Prime: Yes

Previous Prime: 28183

Next Prime: 28211

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 28201

Divisors: 1, 28201

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110111000101001

Octal: 67051

Duodecimal: 143A1

Hexadecimal: 6e29

Square: 795296401

Square Root: 167.93153366774212

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

Let f(n) = exp(π*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10⁴. A127029

Let f(n) = exp(π*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10³. A127028

Expansion of 1 / ((1-x)⁵ - x⁷). A392546

Smallest prime factor of nⁿ-(n-1)^n-1. A68954

Smallest nontrivial extension of n-th palindrome which is a prime. A30675

Numbers k such that 1000k+1, 1000k+3, 1000k+7, 1000k+9 are all primes. A64962

Primes of the form floor((9/8)^k). A67910

a(n) = 1 + n*(n+1)*(n²-n+12)/12. A136396

Primes of the form (p² - 1)/8 - p, where p is also a prime. A165567

Expansion of 1/(-32·x⁵ + 8·x³ - 4·x² - x + 1). A205961