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204032929 = 1731737861
BaseRepresentation
bin11000010100101…
…00101110100001
3112012220221120011
430022110232201
5404213023204
632125044521
75025152122
oct1412245641
9465827504
10204032929
11a5197a61
12583b6741
1333369b59
141d152049
1512da4304
hexc294ba1

204032929 has 8 divisors (see below), whose sum is σ = 216722088. Its totient is φ = 191420160.

The previous prime is 204032903. The next prime is 204032981. The reversal of 204032929 is 929230402.

It can be written as a sum of positive squares in 4 ways, for example, as 61779600 + 142253329 = 7860^2 + 11927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204032929 - 25 = 204032897 is a prime.

It is a super-2 number, since 2×2040329292 = 83258872232638082, which contains 22 as substring.

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 204032929.

It is not an unprimeable number, because it can be changed into a prime (204032329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13542 + ... + 24319.

It is an arithmetic number, because the mean of its divisors is an integer number (27090261).

Almost surely, 2204032929 is an apocalyptic number.

It is an amenable number.

204032929 is a deficient number, since it is larger than the sum of its proper divisors (12689159).

204032929 is a wasteful number, since it uses less digits than its factorization.

204032929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38195.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 204032929 is about 14284.0095561435. The cubic root of 204032929 is about 588.7082040521.

It can be divided in two parts, 20403 and 2929, that added together give a palindrome (23332).

The spelling of 204032929 in words is "two hundred four million, thirty-two thousand, nine hundred twenty-nine".

Divisors: 1 17 317 5389 37861 643637 12001937 204032929