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194441 = 1314957
BaseRepresentation
bin101111011110001001
3100212201112
4233132021
522210231
64100105
71436612
oct573611
9325645
10194441
111230a5
1294635
136a670
1450c09
153c92b
hex2f789

194441 has 4 divisors (see below), whose sum is σ = 209412. Its totient is φ = 179472.

The previous prime is 194431. The next prime is 194443. The reversal of 194441 is 144491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38416 + 156025 = 196^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 194441 - 26 = 194377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7466 + ... + 7491.

It is an arithmetic number, because the mean of its divisors is an integer number (52353).

2194441 is an apocalyptic number.

It is an amenable number.

194441 is a deficient number, since it is larger than the sum of its proper divisors (14971).

194441 is a wasteful number, since it uses less digits than its factorization.

194441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14970.

The product of its digits is 576, while the sum is 23.

The square root of 194441 is about 440.9546461939. The cubic root of 194441 is about 57.9334353276.

The spelling of 194441 in words is "one hundred ninety-four thousand, four hundred forty-one".

Divisors: 1 13 14957 194441