Properties of the Number 66130

Sixty-Six Thousand One Hundred Thirty

Basics

Value: 66129 → 66130 → 66131

Parity: even

Prime: No

Previous Prime: 66109

Next Prime: 66137

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 17 × 389

Divisors: 1, 2, 5, 10, 17, 34, 85, 170, 389, 778

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001001010010

Octal: 201122

Duodecimal: 3232A

Hexadecimal: 10252

Square: 4373176900

Square Root: 257.1575392633862

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

Coefficient of x² in the polynomial (x-p(n))*(x-p(n+1))*(x-p(n+2))*(x-p(n+3)), where p(k) is the k-th prime. A127348

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 57. A31645

Number of partitions satisfying cn(2,5) < cn(0,5) + cn(1,5) + cn(4,5) and cn(3,5) < cn(0,5) + cn(1,5) + cn(4,5). A39873

Numbers that in base 2 need nine 'Reverse and Add' steps to reach a palindrome. A66130