Properties of the Number -166005

One Hundred Sixty-Six Thousand Five

Basics

Value: -166006 → -166005 → -166004

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 7 × 17 × 31

Divisors: 1, 3, 5, 7, 9, 15, 17, 21, 31, 35

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101000100001110101

Octal: -504165

Duodecimal: -80099

Hexadecimal: -28875

Square: 27557660025

Square Root: 407.43711171173396

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

Irregular triangle read by rows where T(n,k) is the number of simple graphs covering n vertices with exactly k triangles, 0 <= k <= binomial(n,3). A372167

Odd solid numbers that are not odd primitive abundant numbers. A number k is solid if a subset of its sum-irreducible nontrivial divisors sums to k. Sum-irreducible divisors are defined in A392650. A392651