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194349 = 364783
BaseRepresentation
bin101111011100101101
3100212121010
4233130231
522204344
64055433
71436421
oct573455
9325533
10194349
11123021
1294579
136a5cc
1450b81
153c8b9
hex2f72d

194349 has 4 divisors (see below), whose sum is σ = 259136. Its totient is φ = 129564.

The previous prime is 194323. The next prime is 194353. The reversal of 194349 is 943491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 943491 = 3314497.

It is not a de Polignac number, because 194349 - 28 = 194093 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32389 + ... + 32394.

It is an arithmetic number, because the mean of its divisors is an integer number (64784).

2194349 is an apocalyptic number.

It is an amenable number.

194349 is a deficient number, since it is larger than the sum of its proper divisors (64787).

194349 is an equidigital number, since it uses as much as digits as its factorization.

194349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64786.

The product of its digits is 3888, while the sum is 30.

The square root of 194349 is about 440.8503147328. The cubic root of 194349 is about 57.9242967939.

The spelling of 194349 in words is "one hundred ninety-four thousand, three hundred forty-nine".

Divisors: 1 3 64783 194349