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194041 = 613181
BaseRepresentation
bin101111010111111001
3100212011201
4233113321
522202131
64054201
71435501
oct572771
9325151
10194041
11122871
1294361
136a423
1450a01
153c761
hex2f5f9

194041 has 4 divisors (see below), whose sum is σ = 197284. Its totient is φ = 190800.

The previous prime is 194027. The next prime is 194057. The reversal of 194041 is 140491.

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 10000 + 184041 = 100^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 194041 - 213 = 185849 is a prime.

It is the 441-st Hogben number.

It is a Duffinian number.

194041 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (194071) by changing a digit.

It is a nontrivial repunit in base 440.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530 + ... + 1651.

It is an arithmetic number, because the mean of its divisors is an integer number (49321).

2194041 is an apocalyptic number.

It is an amenable number.

194041 is a deficient number, since it is larger than the sum of its proper divisors (3243).

194041 is an equidigital number, since it uses as much as digits as its factorization.

194041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 194041 is about 440.5008513045. The cubic root of 194041 is about 57.8936815670.

The spelling of 194041 in words is "one hundred ninety-four thousand, forty-one".

Divisors: 1 61 3181 194041