Properties of the Number 47521

Forty-Seven Thousand Five Hundred Twenty-One

Basics

Value: 47520 → 47521 → 47522

Parity: odd

Prime: Yes

Previous Prime: 47513

Next Prime: 47527

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 47521

Divisors: 1, 47521

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1011100110100001

Octal: 134641

Duodecimal: 23601

Hexadecimal: b9a1

Square: 2258245441

Square Root: 217.99311915746333

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

Primes of form n² + 1296. A256834

Primes that are palindromic in base 6. A29974

Primes p such that p*(p-2) divides 2^p-1-1. A81762

Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = ∑_{1 <= x₁, x₂, ..., x_k <= n} gcd(x₁, x₂, ..., x_k). A344479

Prime numbers p of the form 10k+1 for which the pentanacci quintic polynomial x⁵-x⁴-x³-x²-x-1 modulus p is factorizable into five binomials. A135843

Numbers n such that (nⁿ-2)/(n-2) is an integer. A242787

a(n) = ∑_{1 <= x₁, x₂, ... , x_n <= n} gcd(x₁,x₂, ... ,x_n). A344525

Primes of form k² - 3. A28874

Primes p such that (p+nextprime(p))/2 is a perfect square. A225195

Triangle T(n,k) read by rows: the coefficient [xⁿ] of x²/(1-(k+1)*x-x³) in row n, columns 0 <= k <= n. A117716