Properties of the Number 66522

Sixty-Six Thousand Five Hundred Twenty-Two

Basics

Value: 66521 → 66522 → 66523

Parity: even

Prime: No

Previous Prime: 66509

Next Prime: 66523

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 11087

Divisors: 1, 2, 3, 6, 11087, 22174, 33261, 66522

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001111011010

Octal: 201732

Duodecimal: 325B6

Hexadecimal: 103da

Square: 4425176484

Square Root: 257.9185918075702

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

Pseudoprimes to base 7, written in base 7. A262104

Number of partitions of [n] such that the minimal element of each block is also its size. A364207

a(n) = 2ⁿ-1 + Fibonacci(n). A101351

Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=5, k=-2 and l=0. A177118

Numbers whose base-3 representation has exactly 11 runs. A43591

Numbers n whose divisors less than or equal to sqrt(n) are consecutive, from 1 up to some number k. A66522