Properties of the Number 47074

Forty-Seven Thousand Seventy-Four

Basics

Value: 47073 → 47074 → 47075

Parity: even

Prime: No

Previous Prime: 47059

Next Prime: 47087

Digit Sum: 22

Digital Root: 4

Palindrome: Yes

Factorization: 2 × 23537

Divisors: 1, 2, 23537, 47074

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011011111100010

Octal: 133742

Duodecimal: 232AA

Hexadecimal: b7e2

Square: 2215961476

Square Root: 216.96543503516867

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

Palindromic Smith numbers. A98834

Molien series for invariants of finite Coxeter group A₁₁. A266780

Number of nX6 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero. A304008

Palindromic even numbers with exactly 2 prime factors (counted with multiplicity). Equivalently, palindromic numbers of the form 2·p with p prime. A75813

a(n) = 2 + 4^{n - 1} - (2 - sqrt(2))^{n - 1} - (2 + sqrt(2))^{n - 1}. A377501

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero. A304010

a(n) = ∑_{i=0..floor(n/2)} T(i,n-i), array T as in A047072. A47074

Number of n X 3 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors, with the exception of exactly two elements. A283227