Properties of the Number 6444

Six Thousand Four Hundred Forty-Four

Basics

Value: 6443 → 6444 → 6445

Parity: even

Prime: No

Previous Prime: 6427

Next Prime: 6449

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 179

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 179

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100101100

Octal: 14454

Duodecimal: 3890

Hexadecimal: 192c

Square: 41525136

Square Root: 80.2745289615579

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

Let p = A002145(n) be the n-th prime == 3 (mod 4); a(n) is the multiplicative order of 2+-i modulo p in Gaussian integers. A385165

Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=6. A135191

Square spiral of sums of selected preceding terms, starting at 1. A141481

Numbers n such that there are equal numbers of 0's and 1's in first n digits of binary representation of π. A39624

5-almost primes with semiprime digits (digits 4, 6, 9 only). A111697

T(n,k) = Number of (n+1) X (k+1) 0..2 arrays colored with the difference of the maximum and the upper median in each 2 X 2 subblock. A236096

Total number of edges in graph formed by the straight line segments connecting the edges of an equilateral triangle with the n-1 points resulting from a subdivision of the sides into n equal pieces. A332376

Numbers with digits 4 and 6 only. A284634

Sums of three consecutive pentagonal numbers. A129863

a(n) is the number of edges formed by n-secting the angles of an equilateral triangle. A335412