Properties of the Number 194

One Hundred Ninety-Four

Basics

Value: 193 → 194 → 195

Parity: even

Prime: No

Previous Prime: 193

Next Prime: 197

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 97

Divisors: 1, 2, 97, 194

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010

Octal: 302

Duodecimal: 142

Hexadecimal: c2

Square: 37636

Square Root: 13.92838827718412

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

Numbers k such that (16·10^k - 31)/3 is prime. A270929

Squarefree semiprimes: Numbers that are the product of two distinct primes. A6881

Positive integers congruent to 2 (mod 4): a(n) = 4·n+2, for n >= 0. A16825

The primes doubled; even semiprimes. A100484

a(n) = prime(n) + 1. A8864

Number of partitions of n in which the number of parts divides n. A67538

c-squarefree numbers: positive integers which in binary are concatenation of distinct parts of the form 10...0 with nonnegative number of zeros. A233564

Signature-permutation of a Catalan automorphism: Reflect a rooted plane binary tree; Deutsch's 1998 involution on Dyck paths. A57163

Rank transform of the sequence floor(3·n/2). A187224

Nontotients: even numbers k such that φ(m) = k has no solution. A5277