Properties of the Number 28582

Twenty-Eight Thousand Five Hundred Eighty-Two

Basics

Value: 28581 → 28582 → 28583

Parity: even

Prime: No

Previous Prime: 28579

Next Prime: 28591

Digit Sum: 25

Digital Root: 7

Palindrome: Yes

Factorization: 2 × 31 × 461

Divisors: 1, 2, 31, 62, 461, 922, 14291, 28582

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111110100110

Octal: 67646

Duodecimal: 1465A

Hexadecimal: 6fa6

Square: 816930724

Square Root: 169.06211876112283

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(1) = 1; set of digits of a(n)² is a subset of the set of digits of a(n+1)². A66825

Number of partitions p of n not including round(mean(p)) as a part. (This is "Mathematica round"; for round(x) defined as floor(x + 1/2), see A241734.) A241339

Number of partitions p of n such that round(mean(p)) is not a part of p; here, round(x) means floor(x + 1/2). A241734

Number of partitions of the (n+8)-multiset {0,...,0,1,2,...,n} with eight 0's. A346854

Number of partitions of the (n+5)-multiset {0,...,0,1,2,...,5} with n 0's. A346858

Palindromes equal to the sum of a prime number with its index. A115888

Palindromic Ulam numbers. A173542

Numbers that are divisible by the total number of 1's in both the Zeckendorf and the dual Zeckendorf representations of all their divisors (A300837 and A333618). A333621

Number A(n,k) of partitions of the (n+k)-multiset {0,...,0,1,2,...,k} with n 0's; square array A(n,k), n>=0, k>=0, read by antidiagonals. A346426

Dividends associated with A024011. A28582