Properties of the Number 47944

Forty-Seven Thousand Nine Hundred Forty-Four

Basics

Value: 47943 → 47944 → 47945

Parity: even

Prime: No

Previous Prime: 47939

Next Prime: 47947

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 13 × 461

Divisors: 1, 2, 4, 8, 13, 26, 52, 104, 461, 922

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101101001000

Octal: 135510

Duodecimal: 238B4

Hexadecimal: bb48

Square: 2298627136

Square Root: 218.96118377465902

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

4th binomial transform of (0,1,0,2,0,4,0,8,0,16,...). A81180

a(n) = (n+1) a(n-1) + (-1)ⁿ. A6347

Triangle read by rows: T(n,k) = n·T(n-1,k) + (-1)^n-k for 0 <= k <= n with initial values T(n,k) = 0 if n < 0 or k < 0 or k > n. A352650

a(n) is the sum of the squares of the area under Dyck paths of length 2·n. A367780

Array read by antidiagonals: T(n,k) is the number of (planar) unlabeled k-ary cacti having n polygons. A303912

Number of 9-colorings of an n X n grid, up to rotational symmetry. A47944