Properties of the Number 47791

Forty-Seven Thousand Seven Hundred Ninety-One

Basics

Value: 47790 → 47791 → 47792

Parity: odd

Prime: Yes

Previous Prime: 47779

Next Prime: 47797

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 47791

Divisors: 1, 47791

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1011101010101111

Octal: 135257

Duodecimal: 237A7

Hexadecimal: baaf

Square: 2283979681

Square Root: 218.61152760090215

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 p such that p-1 and p+1 are both divisible by fourth powers. A86709

Primes p such that x⁹ = 2 has a solution mod p, but x^9² = 2 has no solution mod p. A70185

Primes p such that x²⁷ = 2 has no solution mod p, but x⁹ = 2 has a solution mod p. A59354

Primes p such that x⁵⁴ = 2 has no solution mod p, but x¹⁸ = 2 has a solution mod p. A59666

Matrix logarithm of triangle A107719, read by rows. A107724

Numbers n such that 6·10ⁿ + 4·R_n + 3 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A103036

Number of distinct values of the sum of 5 products of three 0..n integers. A225262

Number of nX6 0..1 arrays with every element equal to 0, 1 or 3 horizontally or vertically adjacent elements, with upper left element zero. A301539

Number of nX7 0..1 arrays with every element equal to 0, 1 or 3 horizontally or vertically adjacent elements, with upper left element zero. A301540

a(n) = ∑_i=0..n i·L(i), where L = A000032. A97039