Properties of the Number 66386

Sixty-Six Thousand Three Hundred Eighty-Six

Basics

Value: 66385 → 66386 → 66387

Parity: even

Prime: No

Previous Prime: 66383

Next Prime: 66403

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 19 × 1747

Divisors: 1, 2, 19, 38, 1747, 3494, 33193, 66386

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001101010010

Octal: 201522

Duodecimal: 32502

Hexadecimal: 10352

Square: 4407100996

Square Root: 257.65480783404763

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 permutations of length n which avoid the patterns 4123, 1324, and 3124. A277221

Number of n-node rooted trees in which four equals the maximal number of nodes in paths starting at a leaf and ending at the first branching node or at the root. A318900

Numbers k such that k⁶ + 1091 is prime. A66386

Sierpiński problem in base 5: a(n) is the smallest k >= 0 such that (2·n)*5^k + 1 is prime, or -1 if no such k exists. A345698