Properties of the Number 47771

Forty-Seven Thousand Seven Hundred Seventy-One

Basics

Value: 47770 → 47771 → 47772

Parity: odd

Prime: No

Previous Prime: 47743

Next Prime: 47777

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 23 × 31 × 67

Divisors: 1, 23, 31, 67, 713, 1541, 2077, 47771

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011101010011011

Octal: 135233

Duodecimal: 2378B

Hexadecimal: ba9b

Square: 2282068441

Square Root: 218.56577957219196

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

Number of 3-dimensional polyominoes (or polycubes) with n cells and trivial rotational symmetry group. A66453

"DHK" (bracelet, identity, unlabeled) transform of 0,1,1,1,... A32244

Numerators of continued fraction convergents to sqrt(354). A41670

Number of (n+2) X (7+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7. A252383

Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 2 ones in any 3 X 3 X 3 subtriangle. A153913

Number of 3-dimensional polyominoes (or polycubes) with n cells. A162

Number of dissectable polyhedra with n tetrahedral cells and symmetry of type L. A47771

Indices of primes in sequence defined by A(0) = 41, A(n) = 10·A(n-1) + 61 for n > 0. A101732

Numbers n such that 4·10ⁿ + 7·R_n - 6 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A102995