Properties of the Number 28925

Twenty-Eight Thousand Nine Hundred Twenty-Five

Basics

Value: 28924 → 28925 → 28926

Parity: odd

Prime: No

Previous Prime: 28921

Next Prime: 28927

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 ² × 13 × 89

Divisors: 1, 5, 13, 25, 65, 89, 325, 445, 1157, 2225

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000011111101

Octal: 70375

Duodecimal: 148A5

Hexadecimal: 70fd

Square: 836655625

Square Root: 170.07351351694948

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 m that are the hypotenuse of exactly 22 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 22 ways. A97103

T(n,k)=Number of nXk 0..1 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order. A222541

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change +-(.,.) 0,0 0,1 or 1,2. A264341

Numbers that are the sum of 2 nonzero squares in 5 or more ways. A25296

Numbers that are the sum of 2 nonzero squares in 6 or more ways. A25297

Numbers that are the sum of 2 distinct nonzero squares in 5 or more ways. A25315

Numbers that are the sum of 2 distinct nonzero squares in 6 or more ways. A25316

Numbers that are the sum of 2 nonzero squares in exactly 6 ways. A25289

Partial sums of A051865. A50441

a(n) = 997·n + 1009. A100776