Properties of the Number 6381

Six Thousand Three Hundred Eighty-One

Basics

Value: 6380 → 6381 → 6382

Parity: odd

Prime: No

Previous Prime: 6379

Next Prime: 6389

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 709

Divisors: 1, 3, 9, 709, 2127, 6381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100011101101

Octal: 14355

Duodecimal: 3839

Hexadecimal: 18ed

Square: 40717161

Square Root: 79.88116173416608

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

Triple and reverse digits. A163632

Number of integer partitions of n whose parts have choosable sets of integer partitions. A387328

a(n) is the number of nonnegative integers k less than 10ⁿ such that the decimal representation of k lacks the digit 1, at least one of digits 2,3,4 and at least one of digits 5,6,7,8,9. A125910

Composites whose prime factorization in base 4 is an anagram of the number in base 4. A260048

T(n,k)=Number of nXk 0..3 arrays with every element plus 1 mod 4 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero. A278188

T(n,k) = 4·A046802(n,k) - 3·A007318(n,k), triangle read by rows (0 <= k <= n). A168289

Largest number not the sum of distinct n-th-order polygonal numbers. A7419

Number of commutative quasigroups of order n. A57992

Numbers that are cubefree, but not squarefree and whose first arithmetic derivative is not squarefree, but some k-th (with k >= 2) derivative is. A328305

Numbers n such that n·nextprime((n-1)!)-nextprime(n!) < 0. A90660