Properties of the Number 82228

Eighty-Two Thousand Two Hundred Twenty-Eight

Basics

Value: 82227 → 82228 → 82229

Parity: even

Prime: No

Previous Prime: 82223

Next Prime: 82231

Digit Sum: 22

Digital Root: 4

Palindrome: Yes

Factorization: 2 ² × 61 × 337

Divisors: 1, 2, 4, 61, 122, 244, 337, 674, 1348, 20557

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000100110100

Octal: 240464

Duodecimal: 3B704

Hexadecimal: 14134

Square: 6761443984

Square Root: 286.75425018646195

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

Largest palindromic substring in n! without an initial zero. A46276

Palindromes whose smallest palindromic proper multiple is the number concatenated with itself. A119368

a(n) = [ 1/(2·t(n+1) - t(n) - t(n+2)) ], where t(n) = tan(π/2 - 1/n) satisfies n-1 < t(n) < n for all n >= 1. A24817

In the following square array A(n,k), numbers (not occurring earlier) are entered like this, A(1, 1), A(1, 2), A(2, 1), A(3, 1), A(2, 2), A(1, 3), A(1, 4), A(2, 3), A(3, 2), A(4, 1), A(5, 1), A(4, 2), ... such that every partial sum (of length > 1) of the rows is composite and every partial sum (of length > 1) of the columns is prime. The sequence contains the terms in the order in which they are entered (with A(1,1) = 1). A82228

a(0)=2; a(n) is the smallest k > a(n-1) such that the fractional part of k^1/10 starts with n. A34075

Cubes whose digit reversal is the product of 2 palindromes greater than 1. A115701