Properties of the Number 47191

Forty-Seven Thousand One Hundred Ninety-One

Basics

Value: 47190 → 47191 → 47192

Parity: odd

Prime: No

Previous Prime: 47189

Next Prime: 47207

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 41 × 1151

Divisors: 1, 41, 1151, 47191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100001010111

Octal: 134127

Duodecimal: 23387

Hexadecimal: b857

Square: 2226990481

Square Root: 217.23489590763268

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

Triangle read by rows: Zig-zag Eulerian number triangle T(n, k). A205497

Number T(n,k) of entries in the k-th last blocks of all set partitions of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A286416

Third row or column of table A205497. A205493

Convolution related to array A205497 and to generating functions for the rows of the array form of A050446. A205496

Number of tilings of a 5 X n rectangle using straight (3 X 1) trominoes and 2 X 2 tiles. A219969

Number of nonempty subsets of {1,2,...,n} in which exactly 1/6 of the elements are <= (n-2)/2. A47191