Properties of the Number 8444

Eight Thousand Four Hundred Forty-Four

Basics

Value: 8443 → 8444 → 8445

Parity: even

Prime: No

Previous Prime: 8443

Next Prime: 8447

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 2111

Divisors: 1, 2, 4, 2111, 4222, 8444

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000011111100

Octal: 20374

Duodecimal: 4A78

Hexadecimal: 20fc

Square: 71301136

Square Root: 91.89124006128114

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

Composite numbers k such that the digits of the prime factors of k are either 1 or 2. A36302

For a positive number k, let L(k) denote the list consisting of k followed by the prime factors of k, with repetition, in nondecreasing order; sequence gives composite k such that the digits of L(k) are in nonincreasing order. A372034

Array read by antidiagonals of higher order Fubini numbers. A153278

Number of edges among all distinct circles that can be constructed from a 2 X n square grid of points using only a compass. A359861

Numbers k such that k*(k+9) gives the concatenation of two numbers m and m-5. A116258

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f. 1/(1 - f^k(x)), where f(x) = exp(x) - 1. A363007

Triangle of number of permutations of [n] with 0 successions, by number of rises. A46740

a(n) = (sum of first n primes)² - sum of squares of first n primes. A65595

G.f. satisfies: A(x) = x + A(A(A(x)²)). A141370

Expansion of e.g.f. 1/(2 - exp(exp(exp(exp(x) - 1) - 1) - 1)). A363008