Properties of the Number 28900

Twenty-Eight Thousand Nine Hundred

Basics

Value: 28899 → 28900 → 28901

Parity: even

Prime: No

Previous Prime: 28879

Next Prime: 28901

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 ² × 17 ²

Divisors: 1, 2, 4, 5, 10, 17, 20, 25, 34, 50

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111000011100100

Octal: 70344

Duodecimal: 14884

Hexadecimal: 70e4

Square: 835210000

Square Root: 170

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

Numbers n that are the hypotenuse of exactly 12 distinct integer-sided right triangles, i.e., n² can be written as a sum of two squares in 12 ways. A97226

Main diagonal of A082043: a(n) = n⁴ + 2·n² + 1. A82044

Numbers that are the squares of the product of three distinct primes. A162143

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no element having a strict majority of its horizontal and antidiagonal neighbors equal to one. A231997

a(n) = (11·n + 5)². A17450

a(n) = (5·n)². A16850

Numbers k such that k² is palindromic in base 13. A29998

Squares which are palindromes in base 13. A29999

a(n) = (6·n + 2)². A16934

T(n,k) = Number of (n+1) X (k+1) binary arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum. A185798