Properties of the Number -185

One Hundred Eighty-Five

Basics

Value: -186 → -185 → -184

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 37

Divisors: 1, 5, 37, 185

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10111001

Octal: -271

Duodecimal: -135

Hexadecimal: -b9

Square: 34225

Square Root: 13.601470508735444

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

a(n) = n!*L_n(1), where L_n(x) is the n-th Laguerre polynomial. A9940

Values of n such that L(20) and N(20) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227523

a(n) = (1 - (-6)ⁿ)/7. A14987

Triangle of q-binomial coefficients for q=-6. A15116

E.g.f. cosh(x)/(1+x). A9179

5th differences of partition numbers A000041. A81095

Reflected tetranacci numbers A073817. A74058

Dirichlet convolution of A064664 (the inverse permutation of EKG-permutation, A064413) with the Dirichlet inverse of A064413. A349614

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 6. A60025

Coefficients of numerators of rational functions whose binomial transforms give the normalized polylogarithms Li(-n,t)/n!. A131758