Properties of the Number 47932

Forty-Seven Thousand Nine Hundred Thirty-Two

Basics

Value: 47931 → 47932 → 47933

Parity: even

Prime: No

Previous Prime: 47917

Next Prime: 47933

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 23 × 521

Divisors: 1, 2, 4, 23, 46, 92, 521, 1042, 2084, 11983

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011101100111100

Octal: 135474

Duodecimal: 238A4

Hexadecimal: bb3c

Square: 2297476624

Square Root: 218.9337799427032

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

Eight bishops and one elephant on a 3 X 3 chessboard: a(n) = 3·2ⁿ - 2·F(n+1), with F(n) = A000045(n). A175657

Number of partitions of n with difference -5 between the number of odd parts and the number of even parts, both counted without multiplicity. A242687

Number of (n+1) X (6+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251086

Composite numbers k such that φ(k) * ψ(k) + 1 is a perfect square, where φ is the Euler totient function (A000010) and ψ is the Dedekind ψ function (A001615). A309653

Number of 4-noncrossing stack-free partial matching without 1-arcs. A143657

Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251080

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251088

a(n) = floor(3·n-sqrt(12·n-3)). A47932