Properties of the Number 28960

Twenty-Eight Thousand Nine Hundred Sixty

Basics

Value: 28959 → 28960 → 28961

Parity: even

Prime: No

Previous Prime: 28949

Next Prime: 28961

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 5 × 181

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000100100000

Octal: 70440

Duodecimal: 14914

Hexadecimal: 7120

Square: 838681600

Square Root: 170.1763790894612

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

Number of nonisomorphic systems enumerated by A102895. A108800

Expansion of ∏_k>=0 (1-x^4·k+3)^4·k+3. A285213

Number of non-isomorphic sets of subsets of {1..n} that are closed under union and cover all n vertices. First differences of A193675. A326907

Triangle read by rows: T(i,j) for the recurrence T(i,j) = (T(i-1,j) + 1)*i. A121662

Sum of n-th row of triangle in A082196. A82199

Triangle read by rows: T(n,k) is the number of compositions of n having degree of asymmetry equal to k (n>=0; 0<=k<=n/3). A275433

Triangle read by rows: T(m,n) = ∑_i=1..n P(m,i) where P(m,n) = m!/(m-n)! is the number of permutations of m items taken n at a time, for 1 <= n <= m. A285268

a(n) = n*( a(n-1)+1 ), initialized by a(1) = -1. A224869

Expansion of ∏_k>=0 (1 + x^4·k+3)^4·k+3. A285339

Numbers k such that each of k, k+1, k+2, and k+4 is a sum of two squares. A328224