Properties of the Number 44447

Forty-Four Thousand Four Hundred Forty-Seven

Basics

Value: 44446 → 44447 → 44448

Parity: odd

Prime: No

Previous Prime: 44417

Next Prime: 44449

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 13 ² × 263

Divisors: 1, 13, 169, 263, 3419, 44447

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010110110011111

Octal: 126637

Duodecimal: 2187B

Hexadecimal: ad9f

Square: 1975535809

Square Root: 210.82457162294912

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

Numbers with digits 4 and 7 only. A284971

a(n) = (4·10ⁿ + 23)/9. A173772

Numbers having four 4's in base 10. A43508

Nonsquarefree numbers k such that A003415(k) divides A276086(k), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function. A371085

Lexicographically first sequence of distinct terms such that the sum of any two terms is not a term of the sequence, and the sum of any two digits is not a digit of the sequence. A302938

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 219", based on the 5-celled von Neumann neighborhood. A270932

Indices of Ulam prime triples, where u(k), u(k+1) and u(k+2) are all primes, and u(k) = A002858(k) are the Ulam numbers. A307330

Start with 1, apply 1->12, 21->21, 22->21, 2->2 (for final 2); a(n) = length of n-th term. A13950

Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 2 ones in any 5 X 5 X 5 subtriangle. A153917

Numbers k such that 40·R_k + 7 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A56682