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194401 = 316271
BaseRepresentation
bin101111011101100001
3100212200001
4233131201
522210101
64100001
71436524
oct573541
9325601
10194401
11123069
1294601
136a63c
1450bbb
153c901
hex2f761

194401 has 4 divisors (see below), whose sum is σ = 200704. Its totient is φ = 188100.

The previous prime is 194377. The next prime is 194413. The reversal of 194401 is 104491.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-194401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194431) 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, 3105 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (50176).

2194401 is an apocalyptic number.

It is an amenable number.

194401 is a deficient number, since it is larger than the sum of its proper divisors (6303).

194401 is an equidigital number, since it uses as much as digits as its factorization.

194401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302.

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

The square root of 194401 is about 440.9092877225. The cubic root of 194401 is about 57.9294624064.

Adding to 194401 its reverse (104491), we get a palindrome (298892).

It can be divided in two parts, 194 and 401, that added together give a palindrome (595).

The spelling of 194401 in words is "one hundred ninety-four thousand, four hundred one".

Divisors: 1 31 6271 194401