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194423 = 199977
BaseRepresentation
bin101111011101110111
3100212200212
4233131313
522210143
64100035
71436555
oct573567
9325625
10194423
11123089
129461b
136a658
1450bd5
153c918
hex2f777

194423 has 4 divisors (see below), whose sum is σ = 195600. Its totient is φ = 193248.

The previous prime is 194413. The next prime is 194431. The reversal of 194423 is 324491.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 194423 - 28 = 194167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194413) 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, 290 + ... + 687.

It is an arithmetic number, because the mean of its divisors is an integer number (48900).

2194423 is an apocalyptic number.

194423 is a deficient number, since it is larger than the sum of its proper divisors (1177).

194423 is an equidigital number, since it uses as much as digits as its factorization.

194423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176.

The product of its digits is 864, while the sum is 23.

The square root of 194423 is about 440.9342354592. The cubic root of 194423 is about 57.9316475805.

The spelling of 194423 in words is "one hundred ninety-four thousand, four hundred twenty-three".

Divisors: 1 199 977 194423