Properties of the Number 47525

Forty-Seven Thousand Five Hundred Twenty-Five

Basics

Value: 47524 → 47525 → 47526

Parity: odd

Prime: No

Previous Prime: 47521

Next Prime: 47527

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 1901

Divisors: 1, 5, 25, 1901, 9505, 47525

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100110100101

Octal: 134645

Duodecimal: 23605

Hexadecimal: b9a5

Square: 2258625625

Square Root: 218.0022935659164

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

a(n) = 10·a(n-1) - a(n-2); a(0) = 1, a(1) = 5. A1079

a(n) = cos(2·n*arcsin(sqrt(3))) = (-1)ⁿ*cosh(2·n*arcsinh(sqrt(2))). A146311

Numbers such that floor(a(n)² / 6) is a square. A204518

Numerators of continued fraction convergents to sqrt(6). A41006

Chebyshev polynomial of the first kind T(n,x), evaluated at x=n. A115066

Numerators of continued fraction convergents to sqrt(3/2). A142238

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where A(n,k) is Chebyshev polynomial of the first kind T_n(x), evaluated at x=k. A322836

Numbers of the form (square + 1) that are not squarefree. A124809

Number triangle associated to Chebyshev polynomials of first kind. A101124

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where A(n,k) is ∑_j=0..k binomial(2·k,2·j)*(n+1)^k-j*n^j. A322790