Properties of the Number 6419

Six Thousand Four Hundred Nineteen

Basics

Value: 6418 → 6419 → 6420

Parity: odd

Prime: No

Previous Prime: 6397

Next Prime: 6421

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 ² × 131

Divisors: 1, 7, 49, 131, 917, 6419

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100010011

Octal: 14423

Duodecimal: 386B

Hexadecimal: 1913

Square: 41203561

Square Root: 80.11866199581718

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

Number of partitions of 2n with all subsums different from n. A6827

Number of non-biquanimous integer partitions of n. A371795

Number of partitions of n with odd minimal and maximal parts. A325338

T(n,k)=Number of third differences of arrays of length n+3 of numbers in 0..k. A228260

Numbers that are the sum of nine fourth powers in exactly five ways. A345847

Number of polypons with n cells. A57784

a(n) = minimal positive k such that the concatenation of the binary expansions of n,n+1,...,n+k is divisible by n+k+1, or -1 if no such k exists. A332563

Number of partitions of n into 7 distinct and relatively prime parts. A339672

Expansion of x*(1-3·x)*(1-x)/(1-7·x+14·x²-7·x³). A122068

a(n) = ( 2·n*(2·n² + 9·n + 14) + (-1)ⁿ - 1 )/16. A248851