Properties of the Number 6446

Six Thousand Four Hundred Forty-Six

Basics

Value: 6445 → 6446 → 6447

Parity: even

Prime: No

Previous Prime: 6427

Next Prime: 6449

Digit Sum: 20

Digital Root: 2

Palindrome: Yes

Factorization: 2 × 11 × 293

Divisors: 1, 2, 11, 22, 293, 586, 3223, 6446

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1100100101110

Octal: 14456

Duodecimal: 3892

Hexadecimal: 192e

Square: 41550916

Square Root: 80.2869852466762

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

T(n,k)=Number of nXk binary arrays without the pattern 0 0 1 vertically or antidiagonally. A189196

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

3-almost primes with semiprime digits (digits 4, 6, 9 only). A111494

Palindromes with exactly 3 prime factors (counted with multiplicity). A46329

Numbers with digits 4 and 6 only. A284634

Palindromes of length greater than 1 in decimal expansion of π (not showing leading 0's). A68046

Number of partitions of n into powers of 2 or of 3. A131995

a(n) = (n+1)*(n⁴-4·n³+11·n²-8·n+12)/12. A302612

Number of loopless rooted planar maps with 3 faces and n vertices and no isthmuses. Also a(n)=T(4,n-3), array T as in A049600. A6416

Base-10 palindromes that start with 6. A43041