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204242201 = 724728183
BaseRepresentation
bin11000010110001…
…11110100011001
3112020022120121222
430023013310121
5404241222301
632133341425
75030013212
oct1413076431
9466276558
10204242201
11a5320209
1258497875
1333411197
141d1a8409
1512de631b
hexc2c7d19

204242201 has 4 divisors (see below), whose sum is σ = 204277632. Its totient is φ = 204206772.

The previous prime is 204242173. The next prime is 204242209. The reversal of 204242201 is 102242402.

It is a happy number.

204242201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 204242201 - 214 = 204225817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204242201.

It is not an unprimeable number, because it can be changed into a prime (204242209) 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, 6845 + ... + 21338.

It is an arithmetic number, because the mean of its divisors is an integer number (51069408).

Almost surely, 2204242201 is an apocalyptic number.

It is an amenable number.

204242201 is a deficient number, since it is larger than the sum of its proper divisors (35431).

204242201 is an equidigital number, since it uses as much as digits as its factorization.

204242201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35430.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 204242201 is about 14291.3330728802. Note that the first 3 decimals coincide. The cubic root of 204242201 is about 588.9094102114.

Adding to 204242201 its reverse (102242402), we get a palindrome (306484603).

The spelling of 204242201 in words is "two hundred four million, two hundred forty-two thousand, two hundred one".

Divisors: 1 7247 28183 204242201