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204021433 = 7115349993
BaseRepresentation
bin11000010100100…
…01111010111001
3112012220100210101
430022101322321
5404212141213
632124515401
75025103450
oct1412217271
9465810711
10204021433
11a518a360
12583abb61
1333364855
141d14bb97
1512da0bdd
hexc291eb9

204021433 has 16 divisors (see below), whose sum is σ = 259168896. Its totient is φ = 155975040.

The previous prime is 204021427. The next prime is 204021451. The reversal of 204021433 is 334120402.

204021433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 204021433 - 25 = 204021401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204021433.

It is not an unprimeable number, because it can be changed into a prime (204021463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20916 + ... + 29077.

It is an arithmetic number, because the mean of its divisors is an integer number (16198056).

Almost surely, 2204021433 is an apocalyptic number.

It is an amenable number.

204021433 is a deficient number, since it is larger than the sum of its proper divisors (55147463).

204021433 is a wasteful number, since it uses less digits than its factorization.

204021433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50064.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 204021433 is about 14283.6071424553. The cubic root of 204021433 is about 588.6971471495.

Adding to 204021433 its reverse (334120402), we get a palindrome (538141835).

The spelling of 204021433 in words is "two hundred four million, twenty-one thousand, four hundred thirty-three".

Divisors: 1 7 11 53 77 371 583 4081 49993 349951 549923 2649629 3849461 18547403 29145919 204021433