Properties of the Number 6656

Six Thousand Six Hundred Fifty-Six

Basics

Value: 6655 → 6656 → 6657

Parity: even

Prime: No

Previous Prime: 6653

Next Prime: 6659

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁹ × 13

Divisors: 1, 2, 4, 8, 13, 16, 26, 32, 52, 64

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101000000000

Octal: 15000

Duodecimal: 3A28

Hexadecimal: 1a00

Square: 44302336

Square Root: 81.58431221748455

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 divisible by exactly 10 primes with multiplicity. A46314

Number of primes of the form x² + 1 < 10ⁿ. A83844

Consider the Post tag system defined in A284116; a(n) = number of binary words of length n which terminate at the empty word. A289670

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

Triangle read by rows: T(n,k) = (2·k-1)*2^n-1, 0 < k <= n. A118416

Numbers of the form (2ⁱ)*(13^j). A107326

Number of integer partitions of n with integer mean and integer median. A359906

a(n) = 13·2ⁿ. A5029

a(0) = a(1) = 1; for n > 1, a(n) = (n+2)*2^n-2. A87447

Numbers of the form p⁹*q where p and q are distinct primes. A179692