Properties of the Number 28648

Twenty-Eight Thousand Six Hundred Forty-Eight

Basics

Value: 28647 → 28648 → 28649

Parity: even

Prime: No

Previous Prime: 28643

Next Prime: 28649

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 3581

Divisors: 1, 2, 4, 8, 3581, 7162, 14324, 28648

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111111101000

Octal: 67750

Duodecimal: 146B4

Hexadecimal: 6fe8

Square: 820707904

Square Root: 169.2572007330855

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

Coefficients in the expansion of ∏_m>=1 (1 - q^13·m)/(1 - q^m). A341714

Number of triangulations of the cyclic polytope C(n, n-4). A66342

Least k such that decimal representation of k·n contains only digits 0 and 8. A96687

a(n) = (n+2)*2^n-1 - 2·n. A66368

Numbers n such that n·359# +-1 are twin primes, where 359# = 72nd primorial (A002110(72)). A87907

n·a(n+1) = (2·n²+3n-1)*a(n)-(n²-n-2)*a(n-1); a(0)=0, a(1)=1. A259902

Expansion of (theta₃(z)*theta₃(20z)+theta₂(z)*theta₂(20z))⁴. A28648