Properties of the Number 47928

Forty-Seven Thousand Nine Hundred Twenty-Eight

Basics

Value: 47927 → 47928 → 47929

Parity: even

Prime: No

Previous Prime: 47917

Next Prime: 47933

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 1997

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 1997, 3994

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101100111000

Octal: 135470

Duodecimal: 238A0

Hexadecimal: bb38

Square: 2297093184

Square Root: 218.92464456976973

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 polygon edges formed when every pair of vertices of a regular n-gon are joined by an infinite line. A344899

Number of polygon edges formed when every pair of vertices of a regular 2n-gon are joined by an infinite line. A347322

a(n) = floor( ∑_k=0..n-1 n^k / (k! * a(k)) ), for n > 0 with a(0) = 1. A357549

Array read by downward antidiagonals: A(n,k) = A(n-1,k) + (k+1)*A(n-1,k+1) + k·A(n-1,k-1) with A(n,0) = A(n-1,0) + A(n-1,1), A(0,k) = 1. A391886

a(n) = n*(n-1)²*(n-2). A47928