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204412401 = 3222712489
BaseRepresentation
bin11000010111100…
…01010111110001
3112020122020002200
430023301113301
5404312144101
632141133413
75031322344
oct1413612761
9466566080
10204412401
11a5427076
125855a269
13334707ab
141d21045b
1512e2b986
hexc2f15f1

204412401 has 6 divisors (see below), whose sum is σ = 295262370. Its totient is φ = 136274928.

The previous prime is 204412391. The next prime is 204412409. The reversal of 204412401 is 104214402.

It can be written as a sum of positive squares in only one way, i.e., 200250801 + 4161600 = 14151^2 + 2040^2 .

It is not a de Polignac number, because 204412401 - 227 = 70194673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204412409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11356236 + ... + 11356253.

It is an arithmetic number, because the mean of its divisors is an integer number (49210395).

Almost surely, 2204412401 is an apocalyptic number.

It is an amenable number.

204412401 is a deficient number, since it is larger than the sum of its proper divisors (90849969).

204412401 is a wasteful number, since it uses less digits than its factorization.

204412401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22712495 (or 22712492 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 204412401 is about 14297.2864907996. The cubic root of 204412401 is about 589.0729489773.

Adding to 204412401 its reverse (104214402), we get a palindrome (308626803).

The spelling of 204412401 in words is "two hundred four million, four hundred twelve thousand, four hundred one".

Divisors: 1 3 9 22712489 68137467 204412401