Properties of the Number 28948

Twenty-Eight Thousand Nine Hundred Forty-Eight

Basics

Value: 28947 → 28948 → 28949

Parity: even

Prime: No

Previous Prime: 28933

Next Prime: 28949

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 7237

Divisors: 1, 2, 4, 7237, 14474, 28948

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000100010100

Octal: 70424

Duodecimal: 14904

Hexadecimal: 7114

Square: 837986704

Square Root: 170.14111789923092

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

Total area below the lattice paths of length n defined by the rule [(0),(k)->(k-1)(k+1)] (Dyck paths). A94893

Triangle, read by rows, where row n lists coefficients of q in F(n,q) that satisfies: F(n,q) = ∑_k=0..n-1 C(n-1,k)*F(k,q)*F(n-k-1,q)*q^k for n>0, with F(0,q) = 1. A126470

An "extremely strange sequence": a(n+1) = [ A·a(n)+B ]/p^r, where p^r is the highest power of p dividing [ A·a(n)+B ] and p=2, A=4.001, B=1.2. A28948

Number of Pythagorean triangles (x, y, z) with legs x < y <= 10ⁿ. A239744