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204134141 = 808125261
BaseRepresentation
bin11000010101011…
…01011011111101
3112020010002101202
430022231123331
5404224243031
632131145245
75026053161
oct1412553375
9466102352
10204134141
11a5257002
1258445225
13333a3c43
141d17aca1
1512dc42cb
hexc2ad6fd

204134141 has 4 divisors (see below), whose sum is σ = 204167484. Its totient is φ = 204100800.

The previous prime is 204134137. The next prime is 204134171. The reversal of 204134141 is 141431402.

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 46104100 + 158030041 = 6790^2 + 12571^2 .

It is a cyclic number.

It is not a de Polignac number, because 204134141 - 22 = 204134137 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 (204134171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550 + ... + 20711.

It is an arithmetic number, because the mean of its divisors is an integer number (51041871).

Almost surely, 2204134141 is an apocalyptic number.

It is an amenable number.

204134141 is a deficient number, since it is larger than the sum of its proper divisors (33343).

204134141 is an equidigital number, since it uses as much as digits as its factorization.

204134141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33342.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 204134141 is about 14287.5519596605. The cubic root of 204134141 is about 588.8055322715.

Adding to 204134141 its reverse (141431402), we get a palindrome (345565543).

The spelling of 204134141 in words is "two hundred four million, one hundred thirty-four thousand, one hundred forty-one".

Divisors: 1 8081 25261 204134141