Properties of the Number 6566

Six Thousand Five Hundred Sixty-Six

Basics

Value: 6565 → 6566 → 6567

Parity: even

Prime: No

Previous Prime: 6563

Next Prime: 6569

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 ² × 67

Divisors: 1, 2, 7, 14, 49, 67, 98, 134, 469, 938

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1100110100110

Octal: 14646

Duodecimal: 3972

Hexadecimal: 19a6

Square: 43112356

Square Root: 81.03085831953157

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

Numbers that are the sum of 8 positive 7th powers. A3375

Numbers that are the sum of 6 nonzero 8th powers. A3384

Numbers which have only digits 5 and 6 in base 10. A256291

Partition the concatenation 1234567...of natural numbers into successive strings nontrivially (a(n) is not equal to n) such that the n-th string is a multiple of n. A77293

a(n) = n² + (n+1)² + (n+2)² + (n+3)². A27575

Partial sum of centered tetrahedral numbers A005894. A132366

Numbers n such that m + (sum of digits in base-3 representation of m) = n has exactly four solutions. A230856

Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 7, all different and > 7 (0 is never taken as the most significant digit). A77300

Numbers in which 6 outnumbers all other digits together. A292736

Numbers 1 through 10000 sorted lexicographically in ternary representation. A190128