Properties of the Number -166657

One Hundred Sixty-Six Thousand Six Hundred Fifty-Seven

Basics

Value: -166658 → -166657 → -166656

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 166657

Divisors: 1, 166657

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101000101100000001

Octal: -505401

Duodecimal: -80541

Hexadecimal: -28b01

Square: 27774555649

Square Root: 408.2364510917662

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

Beastly primes (version 2): primes containing 666 as a substring. A131645

a(n) = (n+3)*a(n-1) + a(n-2), with a(0)=0, a(1)=1. A58309

The densest possibly infinite sequence of primes of the form a(n) = floor[A^Cⁿ] for A < 2. The density parameter C here approaches its minimal possible value C₀ = 1.2209864... (A117739), while the corresponding value of A is 1.8252076... (A243370). A243358

a(n) = 2*(K(n,2)*I(4,2) - (-1)ⁿ*I(n,2)*K(4,2)) where I(n,x) and K(n,x) are Bessel functions. A246662